Ultegra BBR60 Hollowtech II English Bottom Bracket Small (50-53) SM-EW90-A 3-Port Cockpit Junction Box

SM-EW90-A 3-Port Cockpit Junction Box connects 1 pair of Di2 shifters to the frame junction box via 3 SD50 E-tube wires

Brake Mount Type: Short Reach Caliper (39mm - 49mm)

Tooth Count: 26

and with strength to spare

Ultegra BBR60 Hollowtech II English Bottom Bracket Small (50-53) SM-EW90-A 3-Port Cockpit Junction BoxShimano Ultegra BB72, BBR60 Hollowtech II Bottom Brackets FEATURES: Reduced size for light weight New seal construction for smoother rotation Requires TL FC34 or included TL FC24 adaptor for installation & removal SPECS: Spindle Interface Type: Shimano Hollowtech II BB Shell Width (mm): 68 Bottom Bracket Shell I. D.: 1. 37 BB Frame Interface: English Weight: 77