DirtWatts

About

DirtWatts is built for mountain bikers: real singletrack rebuilt from 1-metre USGS bare-earth lidar, with vegetation and imagery placed from land-cover and aerial data, and a speed model fitted to real power-meter rides on dirt (surface-dependent rolling resistance, altitude, rider weight). Trainer resistance follows the grade. 22 trails so far in Park City and Moab (Utah), Sedona (Arizona), Bend (Oregon) and Durango (Colorado), with more added every month and a form to submit your own routes, which are processed by hand. The HUD shows power and heart-rate zones, cadence, grade, minimap and elevation, calls out climbs ahead, and has three cameras; every ride ends with a FIT download for Strava, Garmin Connect or intervals.icu. Runs in Chrome or Edge on Windows, macOS or ChromeOS (on iPad via the "Bluetooth Browser" app) with Bluetooth FTMS or Tacx trainers; no ANT+. Free tier with two featured trails rotated monthly; the subscription unlocks the whole library. Made by Doey Apps LLC.

Features

• Routes

Sends rides to

• Any tracker, by file (FIT, TCX…)

In these lists

• Web browser
• Controller support
• Freemium
• Zwift Click
• Zwift Ride
• Wahoo KICKR BIKE
• Elite Square
• Shimano Di2
• SRAM AXS

Changelog

1. 6 Nov 2026DirtWatts added OpenBikeControl supportAnnouncement

   • DirtWatts added OpenBikeControl support and compatibility with BikeControl

Summarized by AI from the published release notes; the link has the full notes. Checked 14 Nov 2026.

Sources

• dirtwatts.com
• dirtwatts.com/faq/
• dirtwatts.com/legal/terms/
• facebook.com/groups/1152040628195204/posts/28856272147345346/

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