Truvativ Sram XX Chainset 39 26T BB30 2 x 10 Speed Shifting Technology Q Factor 164 (Excludes Botton Bracket) 175 mm

XX Crank geometry provides a narrow 164 mm Q-factor Arm material: integrated carbon composite/aluminium spider construction; chainring material: aluminum-7075-T651 Teeth: 39-26; X-Glide 2X10 shifting technology Arm length: 175 mm Bottom bracket configuration: BB30