Shimano DURA-ACE Di2 Rear Derailleur SHIMANO SHADOW RD 12-speed webbbs Borrowing all the best attributes

Borrowing all the best attributes from both Nordic and Alpine Ski poles

The F1 LT is lighter at 995 g and stiffer with a wall-like flex

the ST Rotation 14 has a DIN adjustment from 7-14 for those that like to turn it up past “11”

Weighing an ultralight 96 grams (without the brake)

It feels like it might float away

Shimano DURA-ACE Di2 Rear Derailleur SHIMANO SHADOW RD 12-speed webbbs Borrowing all the best attributesOur fastest ever shifting across SHIMANO's widest ever DURA ACE gear range, the RD R9250 is capable of both race wins and personal bests. The DURA ACE RD R9250 integrates the system charging port and a wireless connectivity unit all while delivering super fast, precise shifting worth of any podium. A single cage length that is compatible with 28 34T low sprockets brings new versatility to the world's best road component group. FEATURES Our fastest