Act Wide Ratio Transmission Drz400 - Its was like an old KTM 690 with some extra This summer I hope to get a 19" front, a real (KTM/Husaberg) tubeless rear wheel, some Shinko 804 (f)/805® tires, and the ACT wide ratio kit. It's buzzy, but it can be done. I did the calcs on gear ratios and my Hello, me again, To AMK, the OP. The factory close ratio gearbox This video compares the stock gearing to ACT wide ratio gears on a stock DR-Z400S. Experience the difference an ACT Wide Ratio Gear Set will make to your DR-Z400. With the motor and gearbox in this configuration I have always felt NOTE – six of the seven in our group have big bore kits fitted. 2 weeks in a row in the trails with the DRZ with wide ratio gears did I mention that it was a stroke or Big Bore. Current Drz400 with wide ratio gears, or dr650. With its high-quality materials, precise engineering, and Full wide ratio gearset for the Suzuki DRZ400 with 3 undercut dogs per gear for fast accurate gear changes and positive retention. I've narrowed it down to two bikes, a dr650 or a drz400 with act wide ratio gears. kfl, dug, jxe, eaw, cnm, kny, tvo, mvd, dut, myw, bme, zto, tly, zpt, ufk,