That's why "Automatic Transmission System for a Bicycle," a US patent filed by Haven Mercer and published on November 23, has caught the attention of bicycle enthusiasts, myself included.

T he transmission valve body is among the most important components of your vehicle's transmission system, yet it often goes ...

Yamaha claims the components of Y-AMT weigh about 2.8 kg, and an accompanying photo shows an MT-09 that lacks a clutch lever, making it quite apparent the MTN890-S was the automatic-shifting model.