Electronics

This custom Li-Ion Turbo Vado Battery features a 604Wh capacity and is compatible with all Turbo Vado models. It's fully integrated with the frame, removable for easy charging and lockable for added security. - Please Note: The Turbo Vado Battery does not include a battery cover. - Battery features a 604Wh capacity. - Works with all Turbo Vado models. - Lockable and down tube integrated. - Chargeable either on- or off-the-bike. - Includes LED power indicator.

Rally XC200 is tested to the extreme, so you can ride there too. This dual-sensing power meter delivers reliable power measurements and is easy to transfer between bikes, no matter what bike you're on or where you're riding. - Impeccably Designed Pedal—Rally power meters have undergone rigorous testing to increase reliability. Featuring a superior design with sensors housed inside, these sleek pedals install like any pedal. And they're quick to transfer between bikes. - Advanced Cycling Dynamics—In addition to total power and cadence, Rally XC200 measures much more. These metrics help you identify your strengths and weaknesses, so you can work to improve. - Left/Right Balance—Measure power from your left leg versus power from your right leg to get a better look at how symmetrically you're producing power. - Seated vs. Standing—Track the amount of time you spend in each position and gauge position effectiveness. - Power Phase—Get a clear look at where you're producing power in the pedal stroke. - Platform Center Offset—Ensure proper cleat position by keeping track of where power is applied on the pedal. - Cleat Compatibility—For a comfortable ride, these pedals are designed to fit your favorite Shimano SPD cleats. - Transferable Spindle—From road to gravel to cyclocross and much more, keep riding year-round with a transferable spindle that can be installed in the Rally RS/Rally RK road pedal body kits (each sold separately). - Battery Life—Make sure you're ready for those long rides and training sessions with up to 120 hours of battery life. Specs: - Battery type: LR44/SR44 (x4) - Battery life: up to 120 hours (with LR44 battery type) - Weight: 316g - Water resistance: IPX7 - Max. rider weight: 105kg - Accuracy: +/- 1.0% - Cleat type: Shimano SPD - Q-factor: 53/55mm with supplied spacing washer - Stack height: 13.5mm - Field calibration - Adjustable release tension - Garmin Connect - Measurement location: Spindle - Communication: ANT+ and Bluetooth In the Box: - Rally XC200 pedals - Cleat hardware - 55mm Q-factor washers - Documentation

Rally RS200 is tested to the extreme, so you can ride there too. This dual-sensing power meter delivers reliable power measurements and is easy to transfer between bikes, no matter what bike you're on or where you're riding. - Impeccably Designed Pedal—Rally power meters have undergone rigorous testing to ensure total reliability. Featuring a superior design with sensors housed inside, these sleek pedals install like any pedal. And they're quick to transfer between bikes. - Advanced Cycling Dynamics—In addition to total power and cadence, Rally RS200 measures much more. These metrics help you tailor your training around your specific weaknesses and strengths to help you improve. - Left/Right Balance—Measure power from your left leg versus power from your right leg to get a better look at how symmetrically you're producing power. - Seated vs. Standing—Track the amount of time you spend in each position and gauge position effectiveness. - Power Phase—Get a clear look at where you're producing power in the pedal stroke. - Platform Center Offset—Ensure proper cleat position by keeping track of where power is applied on the pedal. - Cleat Compatibility—For a comfortable ride, these pedals are designed with your favorite Shimano SPD-SL cleats in mind. - Transferable Spindle—From road to gravel to cyclocross and much more, keep riding year-round. A transferable spindle can be installed in Rally RS road or Rally XC off-road pedal body kits (each sold separately). - Battery Life—Make sure you're ready for those long rides and training sessions with up to 120 hours of battery life. Specs: - Battery type: LR44/SR44 (x4) or CR1/3N (x2) - Battery life: up to 120 hours - Maximum rider weight: 105kg - Accuracy: +/- 1% - Field calibration - Adjustable release tension - Measurement location: spindle - Communication: ANT+ and BLUETOOTH - Weight: 320g - Water resistance: IPX7 - Cleat type: SPD-SL - Q-factor: 53mm (55mm with provided 2mm washer) - Stack height: 12.2mm In the Box: - Rally RS200 pedals - Cleat hardware - 55mm Q-factor washers - Documentation

- AXS enabled for easy monitoring and firmware upgrades - Fully integrated power meter into a direct mount chainring - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - 8-bolt direct mount compatibility only to RED and Force eTap AXS cranks. - Speeds: 12 - Chainring material: Aluminum - Power Meter Type: Ant USB

Edge 1040 Solar is powered by the sun and packed with everything under it. It's our first GPS bike computer with solar charging and multi-band GNSS technology, so you can ride longer and get even better coverage under dense tree cover or the urban canyon. The Edge 1040 Solar bike computer also has performance features that help you understand your strengths and weaknesses. When paired with your compatible sensors, it can even help you manage your efforts by providing power targets throughout a course and stamina feature insights, so you know how much gas is left in the tank. And the setup is simple, so you can take it out of the box and be out riding in no time.

BREAKTHROUGH POWER Built on the cutting-edge SPEEDPLAY pedal platform, POWRLINK ZERO delivers reliably accurate power and cadence data in a race-proven pedal system. This powerful combination creates an unrivaled power pedal that helps cyclists optimize performance to break through to the next level. A POWERFUL COMBINATION POWRLINK ZERO combines proven sports science and years of industry-leading research with the superior adjustability, increased power transfer, reduced weight, and enhanced aerodynamics of the SPEEDPLAY platform to create a pedal system that delivers a distinct performance advantage. BETTER YOUR BEST Accurate to +/- 1%, POWRLINK ZERO’s internal gyroscope removes cadence variation to measure power output more precisely. Combined with Wahoo’s sports-science based algorithms, cyclists get accurate values they can use to achieve next-level performance gains. LASTING POWER POWRLINK ZERO is made with premium materials for superior strength-to-weight ratio – making it perfect for enduring efforts. In addition, the rechargeable battery lasts up to 75-hours per charge to give you the power to go long. Really long. In the box - Left Power Pedal and Compatible Right Pedal - Washer (x2) - Cleat Assembly - Screw Packet - Charging Cable and Clips - Quick Start Guide - Important Product Information Guide Additional Tools Required for Assembly: #1 and #2 Philips Head Screwdriver and 8mm Allen Wrench"

Rally RK100 is tested to the extreme, so you can ride there too. This single-sensing power meter delivers reliable power measurements and is easy to transfer between bikes, no matter what bike you're on or where you're riding. - Impeccably Designed Pedal—Rally power meters have undergone rigorous testing to increase reliability. Featuring a superior design with sensors housed inside, this pedal installs like any other pedal. And it's quick to transfer between bikes. - Reliable Readings—By reliably measuring your cadence and forces detected on the left pedal, Rally RK100 doubles the value to provide total power. Want more metrics? Upgrade later to the dual-sensing system (sold separately). - Cleat Compatibility—For a comfortable ride, this pedal is designed to fit your favorite LOOK KEO cleats. - Transferable Spindle—From road to gravel to cyclocross and much more, keep riding year-round with a transferable spindle that can be installed in the Rally RS/Rally RK road pedal body kits (each sold separately). - Battery Life—Make sure you're ready for those long rides and training sessions with up to 120 hours of battery life. Specs: - Battery type: LR44/SR44 (x4) or CR1/3N (x2) - Battery life: up to 120 hours - Maximum rider weight: 105kg - Accuracy: +/- 1% - Field calibration - Adjustable release tension - Measurement location: spindle - Communication: ANT+ and BLUETOOTH - Weight: 334g - Water resistance: IPX7 - Cleat type: KEO - Q-factor: 53mm (55mm with provided 2mm washer) - Stack height: 12.2mm In the Box: - Rally RK100 pedals - Cleat hardware - 55mm Q-factor washers - Documentation

Rally RS100 is tested to the extreme, so you can ride there too. This single-sensing power meter delivers reliable power measurements and is easy to transfer between bikes, no matter what bike you're on or where you're riding. - Impeccably Designed Pedal—Rally power meters have undergone rigorous testing to increase reliability. Featuring a superior design with sensors housed inside, this pedal installs like any other pedal. And it's quick to transfer between bikes. - Reliable Readings—By reliably measuring your cadence and forces detected on the left pedal, Rally RS100 doubles the value to provide total power. Want more metrics? Upgrade later to the dual-sensing system (sold separately). - Cleat Compatibility—For a comfortable ride, this pedal is designed to fit your favorite Shimano SPD-SL cleats. - Transferable Spindle—From road to gravel to cyclocross and much more, keep riding year-round with a transferable spindle that can be installed in the Rally RS/Rally RK road pedal body kits (each sold separately). - Battery Life—Make sure you're ready for those long rides and training sessions with up to 120 hours of battery life. Specs: - Battery type: LR44/SR44 (x4) or CR1/3N (x2) - Battery life: up to 120 hours - Maximum rider weight: 105kg - Accuracy: +/- 1% - Field calibration - Adjustable release tension - Measurement location: spindle - Communication: ANT+ and BLUETOOTH - Weight: 328g - Water resistance: IPX7 - Cleat type: SPD-SL - Q-factor: 53mm (55mm with provided 2mm washer) - Stack height: 12.2mm In the Box: - Rally RS100 pedals - Cleat hardware - 55mm Q-factor washers - Documentation

Never stop cycling with Edge 1040. It's our first GPS bike computer with multi-band GNSS technology for even better coverage under dense tree cover, on remote mountain trails and even in the urban canyon. It's also packed with performance features that help you understand your strengths and weaknesses to coach you through any challenge. When paired with your compatible sensors, it can even help you manage your efforts by providing power targets throughout a course and stamina feature insights, so you know how much gas is left in the tank. And the setup is simple, so you can take it out of the box and be out riding in no time.

Introduce the rider you are today to the one you’ll be tomorrow. The Edge® 840 touchscreen cycling computer offers targeted adaptive coaching when used with your compatible power meter and heart rate monitor. It helps you manage your efforts by providing power targets throughout a course plus stamina insights, so you know how much gas is left in the tank. Get superior accuracy under dense tree cover or the urban canyon, thanks to multi-band GNSS technology. It features button controls that work in any environment matched with a responsive touchscreen so you can tap, pan and swipe on the fly. Whether you’re riding roads, trails, gravel or indoor, you can benefit from insights and workouts that will help you understand your strengths and weaknesses and prepare for upcoming races or personal milestones.

Train brilliantly with the smaller-sized Forerunner® 265S GPS running smartwatch. Its colorful AMOLED touchscreen display stands out while the training readiness feature — which tells you when you’re primed for a productive session — helps you crush your goals. Wake up to your morning report with HRV status to see health insights alongside an overview of sleep, recovery and training outlook (data presented is intended to be a close estimation of metrics tracked). Plan your race strategy with the race widget, which enables personalized daily suggested workouts that adapt to performance, recovery, the race you’re running and its course. Get ready to make the most of every run with wrist-based running power and multi-band GPS. And when you want to switch it up with cross training, choose from more than 30 activity profiles, including triathlons, cycling, swimming and more. Get a more complete picture of your health, not just a glimpse, from your Forerunner 265S with up to 15 days of battery life in smartwatch mode.

Reach new goals and explore new roads with a power meter that delivers on accuracy, durability, and reliability. The DFour DUB was designed specifically for Dura-Ace R9100 chainrings. Train using a Quarq power meter without changing your drivetrain. You are working hard, pushing yourself to new heights in some of the toughest conditions. Ride with confidence knowing that your power meter will not quit when you need it the most. Enjoy up to 200 hours of ride time in any weather condition with its IPX7 waterproof rating and 10k temperature compensation; if harsh climates do not hold you back, then you need a product capable of rising to the occasion. That is exactly what the DFour DUB power meter is made for. Train harder, ride faster, and unlock your ultimate potential. The DFour DUB power meter brings simplicity and ease-of-use to your training. With MagicZero automatic calibration, there is no need to worry about calibrating before you ride; just jump on your bike and go. DFour DUB features Bluetooth low energy and ANT+ wireless data transfer, delivering power output information directly to your cycling computer. Features - Bluetooth low-energy technology and ANT+ wireless data transfer - MagicZero - automatically checks and recalibrates your power meter as you ride – no need to manually calibrate - AxCad - no cadence magnet required - 10K Temperature Compensation - Battery - CR2032, 200-hour battery life, change without tools - OmniCal - swap chainrings without affecting accuracy - 2-year warranty - IPX7 waterproof rating - Accuracy - within 1.5%, measuring both legs

It sees what you can't. Varia RCT715 rearview radar with camera and tail light continuously records your ride and automatically saves footage before, during and after events if it detects an incident. The bright tail light makes you more visible to motorists. And Varia RCT715 integrates seamlessly with your Garmin bike computer or the Varia mobile app on your paired compatible smartphone to alert you to traffic as you ride. The app allows for live video viewing for camera setup, plus video transfer so you can replay footage postride. A selection of operation modes lets you flex camera and tail light features to maximize battery life for longer rides.

Leave the tedious leg-work of planning routes to Garmin's Edge Touring Plus so you can focus on the enjoyable leg-work of riding. Preloaded with Garmin's Cycle Map, it's packed with millions of roads, trails, points of interest, and provides turn-by-turn directions on a large, easy-to-see and use touch screen. Whether you have a destination in mind or just a distance, the Edge Touring gives you three options—Cycling, Tour Cycling, or Mountain Biking—that take the most bike-friendly round trip or A to B route. ANT+ technology lets you pair the Edge Touring Plus with a compatible heart rate monitor (sold separately). Plan your route, keep track of your ride data, log into Garmin Connect back at home, and upload to share and analyze your effort. You can even find and download maps that others have made, or you can create and share your own.

- Di2 internal battery, fits all e-Tube Di2 groups - Capacity: 500 mAH (± 2000km) - Use with EW-WU101 or SC-MT800 interfaces/junction to gain BlueTooth Smart wireless connectivity for on-the-fly adjustments with smartphones and tablets - Requires SM-BCR2 charger

Make every ride count with Edge 130 Plus. Never stop cycling with this compact GPS bike computer. Whether you ride to explore new trails or to save the planet in your daily commute, go with Edge 130 Plus. - No more excuses. Wirelessly sync workouts right to your Edge device. - Are we there yet? The ClimbPro feature helps you gauge your effort on a hilly route. - Know where to go. Thanks to easy-to-follow navigation with turn prompts. - Extra awareness and incident detection. Peace of mind for you and your fans back home. - Stay in touch while you’re on your bike with a variety of connected features. - Get more from every charge — up to 12 hours of battery life in GPS mode. In the box: - Edge 130 Plus - Standard Mount - USB cable - Tether - Documentation

Stay aware of approaching cars with Varia RTL515 rearview radar. It pairs with your Edge bike computer or compatible smartphone to alert you of vehicles approaching from behind up to 153 yards (140 meters) away. When used with your compatible smartphone, the Varia app uses bold graphics — plus tone and vibration alerts — to indicate the position and speed of approaching vehicles. MAXIMUM AWARENESS - Varia RTL515 rearview radar provides visual and audible alerts for vehicles approaching from behind up to 153 yards (140 meters) away. MULTIPLE PAIRING OPTIONS - This radar works seamlessly with your Edge bike computer or compatible smartphone as well as select Garmin wearables or the optional radar display unit. WORKS WITH THE VARIA APP - This smartphone app helps you increase your awareness by providing graphics — plus tone and vibration alerts — that indicate the position and speed of approaching cars. THIRD-PARTY APP COMPATIBLE - When used with a compatible smartphone, Varia radar integrates with your favorite apps, such as Ride with GPS to overlay your maps with rearview radar alerts. SUPERIOR VISIBILITY - Alert motorists to your presence as soon as possible with daylight visibility up to 1 mile. COMPACT DESIGN - Easily mount this sleek, compact device on the seatpost of almost any road-use bicycle. The vertical design allows for better leg clearance and a perfectly comfortable ride. PELOTON MODE - Varia RTL515 features multiple modes, including peloton mode, which provides a low-intensity flash that is kind to other cyclists’ eyes when riding in a group. BATTERY LIFE - Time spent charging is not as good as time spent riding. Get up to 16 hours of battery life in day flash mode and up to 6 hours in solid mode. Physical Specifications - Dimensions: 3.9” x 0.8” x 1.6" (98.6 x 19.7 x 39.6 mm) - Weight: 2.5 oz (71.0 g) - Modes: solid, peloton, night flash, day flash - Lumens: 20 solid, 8 peloton, 29 night flash, 65 day flash - Battery life: 6 hours solid, 8 hours peloton, 6 hours night flash, 16 hours day flash - ANT+: Yes - BLE: Yes - Water rating: IPX7 - Viewing angle: 220° In the box: - Varia RTL515 - Mounting Kit - Cables - Documentation

Extend your ride with the Garmin Charge power pack. This external battery pack plugs directly in to the Edge 1030 cycling computer, giving you up to 24 hours of additional battery life. It even fits into the new streamlined bike mount. You can charge on the go by connecting the Garmin Charge power pack to any compatible fitness device with an additional cable — including wearables and other cycling computers. Just connect the power pack with a USB charging cable so you can stay in the action and get the most out of your activities. - Bike mount sold separately or included with the purchase of Edge 1030 - Wearables with wrist-based heart rate that use a plug-based charger cannot be worn while charging

An elegant ANT+ cycling computer and sensor combo that’s simple to set up and intuitive to operate. Simple to set up, easy to use RIDEtime Elite Cycling Computer with DuoTrap S feeds you the metrics you need to rock every ride. The included DuoTrap S ANT+ sensor offers real-time speed and cadence so you can target more productive workouts and better recovery rides. Simple setup and an intuitive one-button interface get you riding faster, while features such as auto start/stop and auto light control help you take charge of your ride. Product details - 2” easy-to-read screen features a programmable backlight and customizable tri-field display - Features auto start/stop, auto clear, and auto light control with customizable hands-free scan modes - Tri-field display lets you see three functions at once (speed, cadence, heart rate, power) - Displays Trek Certified Service reminders based on your selected bicycle type - Displays distance (trip/total), time (clock, timer), and calories burned - Track your speed, heart rate, power, cadence (current, average, max) - Includes sleek out-front mount and is also Blendr compatible - Includes DuoTrap S sensor for clean integration into compatible Trek frames - Battery: CR2032 (Coin) - Weight: 40g

Whether you’re training indoors or out, the HRM-Pro Plus heart rate strap provides the accurate data you need to push limits and reach goals. - HRM-Pro Plus transmits real-time heart rate data to compatible devices, equipment and apps. - The tool-free door makes changing your battery easy, plus get up to 1 year of battery life. - Connect to your compatible Garmin smartwatch, and get pace and distance data for your indoor runs. - No, it’s not just a heart rate monitor. Running dynamics also help you improve your form (requires compatible Garmin smartwatch). - Not wearing your watch? HRM-Pro Plus captures steps, calories burned, intensity minutes and more.

Standard Replacement Charger For Select E-Bikes Keep your all-terrain electric bike charged with our standard 2A replacement charger. - Volts: 54.6V - Amps: 2.0 VERIFY COMPATIBILITY BELOW: OEM Replacement Battery Charger for these 2020-22 QuietKat electric bikes: - 2020-22 Apex 750w / 1000w (NOT COMPATIBLE WITH 1500W MODEL) - 2020-22 Ranger 750w / 1000w - 2020-22 Warrior 750w / 1000w - 2021-22 Villager 500w - 2021-22 Ripper 500w - 2021-22 Ranger 5.0 NOT COMPATIBLE WITH LEGACY QUIETKAT E-BIKE MODELS FROM 2014-2019

The Bosch Purion is a minimalist on-board computer designed for anyone who wishes to focus on the most important information and prefers an uncluttered handlebar. The Purion displays the essentials and lets riders get all important information with a click of the thumb, while keeping hands on the handlebars. Five different riding modes provide just the right amount of assistance in every situation. - Manages four levels of assist from Eco to Turbo, with an eMTB mode specially designed for the Performance Line CX Drive system - Features include charging status, speed, riding mode, range, trip distance and total distance

What It Is A computer mount, with inserts for Garmin or WAHOO cycling computers, for exclusive use with ENVE Aero road stems. This mount also includes the combo upgrade to add a GoPro camera. Compatible with the following Garmin Models: 1030, 1000, 820, 520, 510, 500, 25, 20. Who It's For Cyclists using the ENVE Aero Road Stem and a Garmin or WAHOO cycling GPS computer. Why We Made It We wanted to create a clean and integrated solution to mounting a Garmin or WAHOO GPS cycling computer without having to clamp it to our handlebars. In the case of the ENVE Aero Road and TT bar it is impossible to clamp anything to the handlebar itself. The ENVE Computer Mount, mounted to the ENVE Aero Road Stem, is ready to mount both Garmin and WAHOO right out of the box.

EPS chargers and charger accessories specifically designed for charging all Campagnolo EPS batteries. - Required for charging Campagnolo EPS V4 power units - Also compatible with Campagnolo EPS V2 and V3 power units - Power cable sold separately

The new Turbo Connect Display (TCD) is the best way to view data on your Turbo. It not only displays basic ride metrics (speed, cadence, power, battery level, and time), but it also lets you toggle between modes. Its design, meanwhile, is rugged and clean, and it has multiple mounting options for either road or mountain setups. As for the latest version of the Mission Control App, you’ll find that it now has more features and is even more intuitive to use. It lets you custom-tune nearly every aspect of the bike with ease, monitor your power usage, control your range, perform basic system diagnoses, and record/upload rides. - Monochrome LCD display (black/white). - Screen Size: Height (40mm), Width (35mm), Diagonal (52mm), Display (2 inches) - ANT+ & Bluetooth modules for easy communication. - Sits centrally on the handlebars at the stem and has either a twist-lock or an optional theft-resistant lock. - Twist-lock can be turned on the handlebars, while the display also fits others popular mount options. - Protection standard IPX7 (suitable for splashes, rain, or snow).

Shimano BT-R1A External Di2 Battery - All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions - Use Di2 system checker to update component firmware - Di2 External Battery, battery charger, and power cable are universal between Dura-Ace 9070, 7970, Ultegra 6870, 6770 and Alfine Di2 systems - Battery weight: 71 grams

This premium heart rate strap transmits real-time heart rate data over ANT+ connectivity and BLUETOOTH Low Energy technology, giving you more options to train indoors, outdoors or even online. With it, you’ll be able to consistently receive accurate heart rate on your Garmin device, in online training apps such as Zwift or even the compatible fitness equipment in your favorite class at the gym. So however you like to train, you’ll get the accurate, real-time heart rate you need to take your performance to the next level. HRM-Dual features a soft strap that is comfortable and adjustable. Simply remove the heart rate module, and it’s washable, too. And don’t worry about running out of juice. The battery lasts for up to 3.5 years.

An elegant ANT+ cycling computer that’s simple to set up, intuitive to operate, and has a large, easy-to-read screen. Know your ride Change the way you ride with the RIDEtime Elite Cycling Computer. It's easy to pair with compatible ANT+ sensors for real-time speed, cadence, and power data so you can target more productive workouts and better recovery rides. Simple setup and an intuitive one-button interface get you riding faster, while features such as auto start/stop and auto light control help you take charge of your ride. Product details - 2” easy-to-read screen features a programmable backlight and customizable tri-field display - Features auto start/stop, auto clear, and auto light control with customizable hands-free scan modes - Tri-field display lets you see three functions at once (speed, cadence, heart rate, power) - Displays Trek Certified Service reminders based on your selected bicycle type - Displays distance (trip/total), time (clock, timer), and calories burned - Track your speed, heart rate, power, cadence (current, average, max) - Includes sleek out-front mount and is also Blendr compatible - Requires ANT+ compatible sensor such as DuoTrap S or Interchange Combo Sensor - Battery: CR2032 (Coin) - Weight: 40g

Connect ANT+ and Bluetooth Smart devices to all of the data available from the DuoTrap S sensor for your on-the-bike wireless needs. • ANT+ 2.4 GHz and Bluetooth Smart wireless digital speed and cadence sensor • ANT+ and Bluetooth Smart allow simultaneous use of Trip 300 and smartphone • For use with many ANT+ and Bluetooth Smart wireless technology enabled devices • Includes Bontrager wheel magnet, crank cadence band, and CR2032 battery • Works with Trek DuoTrap compatible bikes

Monitor your speed and cadence as you ride with these easy-to-install wireless sensors. With no magnets or other exposed parts to line up, these sensors are easy to install, maintain and move between bikes. The speed sensor 2 attaches to the hub of either wheel and self-calibrates with your Edge cycling computer or compatible Garmin device to give you accurate speed and distance at all times — even without a head unit. The cadence sensor 2 fastens to any size crank arm and measures pedal strokes per minute so you can get the most out of your training. Send live speed, distance and cadence data to compatible training apps or displays by using ANT+ connectivity and BLUETOOTH Low Energy technology. With both of these sensors on your bike, you can work to improve your personal best or see where you stand against the pros.