Praxis Works Doon Cranks 50/34t 165mm ModelNumber=H3891 6 | IS52/40 Upper Cup

6 | IS52/40 Upper Cup 41mm Crown Race Diameter 40mm SHIS Upper IS41/28

Dual Compound Rubber means a fast rolling tire with great corning traction

} Built for use on any road surface

49mm stack height

Ergon SR Allroad Core saddle features a BASF Infinergy core to reduce road shock and allow riders to explore country roads and backwoods gravel in comfort3D reactive damping reduces shock and vibrations

Praxis Works Doon Cranks 50/34t 165mm ModelNumber=H3891 6 | IS52/40 Upper CupPro level carbon arms with M30 Thru (30mm) alloy spindle Cold forged, proprietary LevaTime II X rings (104 160BCD) with steel chainring bolts *M30 Thru BB sold separately, use PX9019 for English 68 73mm, PX9023 for BB30 PF30 or PX9022 for BB86 and PX9024 for T47 external BB tool sold separately, use PX8980 8981 Direct Mount 3 bolt for 1x chainring conversion is possible For additional Praxis 2x chainring options, use PX211* Works with 10 11 12sp