Write a Review

Know what's coming. Ride with extra confidence with Trek CarBack Radar Rear Light. CarBack's radar helps detect rear-approaching vehicles from up to 240m and provides audio and visual alerts through paired GPS head units for increased on-bike awareness. Built with integrated best-in-class Daytime Running Lights that are visible from up to 2km away, CarBack is a must-have for every cyclist riding on shared roads. - CarBack can detect and alert riders of rear-approaching vehicles from up to 240m away - Compatible with most cycling GPS computers - Pair CarBack with the Trek Accessory app to see a vehicle's rear-approaching and passing distance on your smartphone - Designed with focus, flash, and range to be Daytime-visible from up to 2km away - Four light flash modes: Day Flash 90LM, Day Steady 25LM, Night Steady 5LM, and Night Flash 5 LM - Visible fuel gauge LEDs make it easy to see CarBack's 7+ hour battery status - IPX7 waterproof rating to confidently ride through wet conditions - Includes Quick Connect Plus rear mount and USB-C charging cable

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and it can be used to upgrade any eTap AXS bike. - An elegant, integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Simple and affordable power meter upgrade option - Right Arm/BB/Spider/Chainrings NOT INCLUDED

The XX Eagle AXS Transmission Power Meter Crankset utilizes our World stage proven XX crank arm with a subtly integrated power meter to record and deliver live, accurate power readings to your head unit. We achieve this by utilizing what we call “DUB-PWR” – a unique design that elegantly houses Quarq’s reliable and accurate power measurement inside the DUB crank spindle itself. Measuring left-side power to calculate total watts, it’s subtle, lightweight, compatible with any chainring setup, and boasts unbeatable battery life. It is also compatible with the Flight Attendant system, allowing for total connectivity between all AXS enabled components. No-compromise, no-fuss data delivery giving you an edge over the competition. FEATURES Innovative DUB-PWR design allows for lightweight, subtle Quarq power integration. Compatible with Flight Attendant Unique, groundbreaking design integrated with our medal-winning carbon crank design. +/- 3% accuracy Long battery life (400+hours) User replaceable AAA lithium battery Waterproof (IPX7 waterproof to 1 meter for 30 minutes) 32-36T rings Can be run with chainring bash guards

DESIGNED TO FIT, BUILT TO PERFORM Purpose-built for women, HRM-Fit is the heart rate monitor you need to capture the important metrics — all with a comfortable clip-on design. - CLIPS DIRECTLY ONTO MEDIUM- AND HIGH-SUPPORT SPORTS BRAS - UP TO 1 YEAR OF BATTERY LIFE - TRANSMITS REAL-TIME HEART RATE DATA TO YOUR COMPATIBLE DEVICES AND APPS - VERSATILE ENOUGH FOR RUNNING, CYCLING, HIIT, STRENGTH TRAINING AND MORE - CAPTURES RUNNING DYNAMICS TO IMPROVE YOUR FORM WITH YOUR COMPATIBLE GARMIN SMARTWATCH - NOT WEARING YOUR WATCH? HRM-FIT CAPTURES STEPS, CALORIES BURNED, INTENSITY MINUTES AND MORE WHAT YOU'LL LOVE MADE FOR WOMEN The clip-on design easily and comfortably attaches to medium- and high-support sports bras. So move freely and sweat it out — HRM-Fit is with you all the way. CONNECTIVITY The HRM-Fit heart rate monitor transmits accurate real-time heart rate and performance data to your compatible Garmin smartwatches and Edge® cycling computers, compatible fitness equipment, the Tacx Training™ app and other apps. RUNNING DYNAMICS When paired to your compatible Garmin smartwatch1, HRM-Fit captures running dynamics — such as vertical oscillation, ground contact time balance, stride length, vertical ratio and more — to help improve your form. TRAINING VERSATILITY Move how you choose. This monitor provides accurate heart rate data for various activities, including running, indoor and outdoor cycling, strength training, HIIT, fitness classes and more. INDOOR RUNNING For your indoor track or treadmill sessions, this heart rate monitor transmits pace and distance to your compatible Garmin smartwatch1, so you can get the data you need no matter where you train. STORE AND FORWARD DATA During workouts such as strength training and HIIT, you can start and stop an activity on your compatible Garmin smartwatch1. Even if you remove your watch and leave it out of range, HRM-Fit stores the data then sends it to your watch when your activity is saved. ACTIVITY TRACKING If you aren’t wearing your watch, the heart rate monitor captures steps, calories burned, intensity minutes and all-day heart rate. It even updates all your Garmin devices via the Garmin Connect™ smartphone app. BATTERY LIFE Don’t worry about running out of juice. The HRM-Fit monitor gets up to 1 year of battery life.

STAY AWARE OF APPROACHING CARS This rearview radar pairs with your Edge bike computer or compatible smartphone to alert you of vehicles approaching from behind. - Reliable rearview radar lets you ride like you know what’s coming. - One radar. Multiple display options. Pair it with your compatible Garmin device, your phone or both. - Don’t have an Edge or other compatible device yet? No problem. The Varia app has you covered. - It’s small, it’s easy to mount, and it works with just about any bike. - Get more life out of your radar with up to 7 hours of battery life. MAXIMUM AWARENESS - Varia RVR315 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. WORKS WITH THE VARIA APP - This smartphone app helps you increase your awareness by providing graphics — plus tone and vibration alerts — to 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. 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. BATTERY LIFE - Time spent charging is not as good as time spent riding. Get up to 7 hours of battery life. In the box: - RVR315 - Mounting hardware - Power cable - Documentation

fenix 7 Pro Sapphire Solar is the ultimate multisport GPS designed to perform all day, every day. Get weeks of battery life with the scratch-resistant Power Sapphire solar charging lens. Meet any challenge with advanced training features such as hill score, which measures your climbing performance over time, and real-time stamina updates to gauge your stamina potential. For a more complete picture of your health, training and recovery, tap in to 24/7 health and wellness monitoring with advanced sleep tracking, HRV status, Pulse Ox and more (this is not a medical device, and data presented is intended to be a close estimation of metrics tracked; Pulse Ox not available in all countries). When the sun sets, use the LED flashlight to stay visible or find your way. Navigate with preloaded TopoActive maps and ski resort maps; download even more regions for global adventures. Adventure far off the grid with up to 22 days of battery life in smartwatch mode with solar charging in 3 hours of direct sunlight (50,000 lux) per day. Gain superior positioning accuracy while optimizing battery life, thanks to multi-band GPS with SatIQ technology.

The Cateye Velo Wireless Computer packs a punch with a programmable odometer and menu screen. It installs easily on almost any bike, including 27.5 and 29’ers. - Computer functions: Current/ average/ maximum speed, trip distance, total distance, elapsed time, clock, calorie consumption - Analog wireless computer - Pace arrow - Simple tire size - Auto start / stop - Programmable odometer - Menu screen to change setting - Includes zip tie bracket