Trek Accessories vs CycleHUD

The Trek Accessories App adds additional functionality to the Trek CarBack Radar Rear Bike Light by giving cyclists advanced alerts and a real-time visual depiction of rear approaching detected vehicles. Helps you see cars. Use the Trek Accessories App to receive visual and audible alerts of detected rear approaching vehicles. The Trek Accessories App and Trek CarBack Radar can detect rear approaching vehicles from up to 240M, with vehicles first appearing with an audible beep and a visual indicator at the bottom of the App screen. Once the detected vehicle approaches to within 150M, the vehicle is shown on screen in real time. Once within 75M the Vehicles location is depicted in both distance behind and distance to either side, indicating preparation for a potential pass. Once the vehicle completes a pass, an audible alert indicates the pass and the vehicle drops off the screen. Helps cars see you. The Trek Accessories App also gives the ability to turn on a connected Trek CarBack Rear bike Light, all from the App screen. The CarBack Radar offers Daytime Running Light Performance that can be seen from up to 2km during the day to help a cyclist be more visible on the road. Audible and Visual Alerts You can choose the best way to receive alerts – Alerts will be shown visually on screen as well as an audio alert when a detected rear approaching vehicle is first detected, and again when it passes. You can choose to turn audible alerts on and off. This allows you to use the app the way you ride – either with a phone mounted on your bike’s handlebars, or stowed in a jersey pocket. *Please note that the Trek Accessories App currently only works with Trek CarBack Radar Rear Bike Lights. Learn more about Trek CarBack Radar Rear Bike light here - https://www.trekbikes.com/us/en_US/carback/ Find Trek Accessories App FAQs here - https://www.trekbikes.com/us/en_US/FAQ/trek-carback-radar-rear-bike-light/ Having trouble? Contact our support team for assistance at RiderSupport@Trekbikes.com

CycleHUD turns your rear radar into a clear, glanceable heads-up display — and now a quiet-roads navigator and a racing partner too. Always know what's coming up behind you, where you're going, and how you compare with your best, without taking your eyes off the road. EYES BEHIND YOU Vehicles approaching from behind appear on a clean perspective lane, nearest at the top, and the whole panel glows amber to red as a car closes in. A green "Clear" shows when the road behind is empty. Pair an Apple Watch and you'll feel it too: a tap for each new vehicle, faster as it nears, and a distinct buzz if the radar ever drops out. After the ride, every vehicle that passed you is pinned on your route map with its distance and speed. ROUTES ON QUIET ROADS Plan a ride by tapping a start and waypoints on a map — the path snaps to quiet roads and cycle paths, looping back to the start or finishing wherever you choose. While the road behind is clear, the radar panel becomes a live street map: your route ahead, live traffic and closures, the whole ride's elevation profile with the gradient coming up, and the next junction's real layout counting down — with the turn your route takes glowing green. Spoken turn alerts and wrist taps call each bend. Pick a route from across town and CycleHUD plots a lead-in to the start. The moment a vehicle appears behind you, the radar takes the screen back. Routes share as plain GPX and import from anywhere — Strava, Komoot, RideWithGPS, a friend's export. RACE YOUR GHOST Complete a route once and that run becomes its best. Every ride after is a race: a live ahead/behind readout and a ghost marker riding the map beside you. Beat it and the new run takes over. Ghosts travel inside shared GPX files, so you can race a friend's best — or import any recorded ride and chase it. BUILT FOR THE RIDE - Live metrics on customisable, swipeable tile pages: speed, cadence, heart rate, ascent, live gradient, wind (as headwind or tailwind), compass, rain nowcast and more - Every ride saved as an Apple Health workout, with a post-ride effort rating for Health's training load (iOS 18+) - Ride summaries with graphs you can scrub, laps, and your previous bests over the same stretches of road - Optional crash detection: a hard impact followed by a stop starts an SOS countdown on the phone AND your watch — dismiss it or call your emergency contact straight from the wrist - Heart-rate warning that flashes the display and buzzes your wrist - iCloud sync: rides, routes and ghosts back up to your own iCloud and follow you to a new phone - Light, dark and Cyberpunk themes, a digital-dash font, and a fixed-landscape layout for your handlebars WORKS WITH YOUR SENSORS Built around the Coospo TR70 rear radar, and also works with Garmin Varia-compatible radars, standard Bluetooth speed and cadence sensors and heart-rate straps. Speed falls back to GPS when no sensor is connected. PRIVATE BY DESIGN No accounts. No servers. No tracking, ads or analytics. Your data lives on your device, in Apple Health and in your own iCloud — all under your control. The optional routing and junction features fetch open road data (OpenStreetMap, BRouter) and say so plainly in Settings. CycleHUD is a focused, no-nonsense tool made by a rider who wanted exactly this, and nothing more.