Shimano Ultegra RD-R8150 Di2 12 Speed Rear Derailleur Bikesportz Bottom Bracket Shell Width: 68mm

Bottom Bracket Shell Width: 68mm - 73mm

Masterpiece posts weigh approximately 40 grams less than the same size Elite post

steel construction and an ergonomic grip

547 g for the pair makes this wheel ideal for riding on routes that enable going more than 40 km/h

but we can not guarantee to meet your request

Shimano Ultegra RD-R8150 Di2 12 Speed Rear Derailleur Bikesportz Bottom Bracket Shell Width: 68mmNow simplified with a single derailleur cage length, the Shimano Ultegra RD R8150 Di2 12 Speed Rear Derailleur packs Shimano's fastest, most precise shifting into a more approachable option. The single cage length is compatible with up to 34T low sprockets, making it more versatile than ever. Specifications Fastest ever rear shifting 58% faster than RD R9150 Compact design includes an integrated wireless unit, charger and switch LED status indicator