Mountain biker riding a dusty corner

Find your free speed

See where braking is costing you time on the trail — and know what to work on next run.

Wireless brake sensors on your bike, plus an app that maps every brake to the trail.

Used for brake testing, product development and World Cup racing.

As used in brake tests by / featured in

The problem

Braking is the part of your riding you can't see.

You feel speed, you feel grip, you feel the clock. You don't feel where your brakes are taking speed away. BrakeAce measures every brake on every run, so you work on the corners that actually cost you time.

How it works

Fit. Ride. Review.

Mechanic fitting a BrakeAce brake sensor to a mountain bike
01

Fit the sensors

The brake sensors replace the spacers between your frame, fork and calipers, front and rear. Wireless, nothing else to wire up.

Rider holding the BrakeAce app after a run
02

Ride

Record with the free app on iOS, Android, plus Garmin (beta) and Hammerhead Karoo (beta).

Reviewing a run on a laptop with video and braking data
03

Review

Open the run on your desktop with your action camera video synced to the braking. Video sync is included for every rider.

Key Opportunities

Where your next second is hiding

After every run, the app ranks your braking zones. Opportunity 1 is the zone that took away the most speed. Start there.

Real race run · Lenzerheide · Gloria Scarsi

Run time

0:00 / 4:38

Brake power

0 W

Brake intensity

0%

Front / rear balance

—

LightHard
Front brake Rear brake

Ranked like the app: by FlowScore, how much of your speed each braking zone takes away.

Drag across the graph to scrub the run, or jump to an opportunity.

The full system

On your phone. On your head unit. On your desktop.

BrakeAce app showing a run on a phone

The BrakeAce app

Your braking mapped to the trail and your top three opportunities, minutes after the run. Free, no subscription.

Rider reviewing braking data and video on a laptop

The web dashboard

Stack runs side by side, follow your FlowScore over time and watch your action camera footage in sync with every brake.

See the dashboard
BrakeAce brake sensor on the rear brake

Brake sensors

Built to live on a bike

One sensor front, one rear. They take the place of your caliper spacers, so nothing changes about how your brakes feel. Rechargeable, and made for mud, rain and race weekends.

Channels

Front + rear

Independent measurement

Connectivity

Bluetooth

Wireless Bluetooth link to the BrakeAce app

Mount

Post-mount

Replaces 20 mm caliper spacer

Construction

CNC aluminium

Trail and wet-weather use

Proof

Brake testing, product development and World Cup racing

Product development

R&D engineers at Specialized, SRAM, Fox, TRP, Shimano and other brands use BrakeAce sensors to develop and test their products.

  • Trickstuff
  • Specialized
  • Hope
  • Stan's NoTubes
  • TRP

Get started

Stop guessing where you're losing time

Wireless brake sensors on your bike. Analysis in the app. Compare your next run and see what changed.