Complete transmission by renowned French racing specialist Doppler. Gear ratio and range of this transmission differ from the original to be much better suited for racing. Taller gears for reduced gear ratio will improve acceleration, a higher gear ratio will favour top end speed. And as always with Doppler, you can expect premium quality of materials and workmanship, definitely a high-end product! Gear Ratios 6-gear transmission AM6: 1st gear: 34 / 16 2nd gear: 30 / 16 3rd gear: 29 / 19 4th gear: 27 / 20 5th gear: 26 / 21 6th gear: 25 / 22