Shimano BB-UN300 Bottom Bracket - English, 68 x 113mm Spindle, Square Taper JIS Swim Brand_Rocket Science The SRAM PC-1170 chain features

The SRAM PC-1170 chain features more heavily chamfered outer plates for improved shifting and quieter running

Panoramic vision

Directs air over the straw

An all-in-one solution within a single mount

The new AR’s seatpost provides 112% more flex than the seatpost of the previous- generation AR

Shimano BB-UN300 Bottom Bracket - English, 68 x 113mm Spindle, Square Taper JIS Swim Brand_Rocket Science The SRAM PC-1170 chain featuresShimano BB UN300 Square Spindle Bottom Brackets Fits JIS square taper cranksets Crankarm fixing bolts sold separately Hollow spindle Spindle Interface Type: Square Taper JIS BB Shell Width (mm): 68 Bottom Bracket Shell I. D.: 1. 37 Spindle Length: 113 Defined Color: Black BB Frame Interface: English