MR33 FDR Checker Optimal Gear Ratio and Engine Speed Calculator

GearMaster: Engine Speed and Ratio Analyzer – Know Your Ride

Unleash your inner wanderer with this vintage-inspired marvel a treasure waiting to spark joy and tell a story all its own. Picture sun-drenched afternoons and whispered secrets this piece feels like a memory you haven't made yet. It’s effortlessly cool undeniably charming and ready to become your new obsession.

$111.99 $223.97

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MR33 FDR Checker Gear Ratio and Engine Speed Gauge

With the MR33 Drivetrain Checker it is finally possible to measure and control the gear ratio and motor speed of RC model cars powered by 2-pole brushless motors.

Simply place the motor sensor on the motor, put the 7mm wrench on the wheel nut of a driven wheel and accelerate.
Now just read the value shown on the display and the job is done in 5 seconds.
Simple and uncomplicated, for example as part of the scrutineering before the run.

'Every club and every 1:10 electric racing series has been waiting for this device!'

If you just put on the engine sensor and accelerate, the (maximum) engine speed can be measured - perfect for checking the speed limiters of modern speed controllers.

'Developed and tested as part of the Euro Touring Series (ETS).'

Technical specifications