RB EVO 15-19 YAMAHA YZF R1/M Graves TTX highly adjustable compression valve

TTX highly adjustable compression valve technology

2006 - CRF450R

fit and finish

2011 - KX450F

RB EVO 15-19 YAMAHA YZF R1/M Graves TTX highly adjustable compression valvePlease specify in the comment box at checkout what year bike. All Rapid Bike products are for closed course competition use only. Kit including the Rapid Bike Evo module and the USB cable and model specific wiring harness . The Evo module manages up to 8 injectors and modulates the signal up to two O2 sensors (up to 2 lambdas). The purpose of the O2 sensor (lambda) modulation is to prevent the stock ECU from recognizing the adjustment applied by the