OKO V-force Type Reed Valve System - Yamaha 125z/RXZ 135

The OKO Racing Reed valve block comes with carbon fibre reed petals, with a design similar to V-Force type reed valves. Extra reed petals are also available separately

The design of the OKO reed valve system features double the intake surface area over standard reed valves, giving Increased overall mid range, top end power. Greater efficiency and reduced reed petal wear due to reduced reed petal travel.

Fitting:

Yamaha Z125/125zr

Yamaha RXZ135 RX135 YZ125 DT175

Also may fit:Yamaha RD RD250 RD350 RD400

Yamaha Banshee 350 YFZ350

Similar in performance to Malossi, Boyesen, Moto Tassinari Vforce 3/Vforce 4 reed valve systems