absoluteBLACK Premium Oval Road 38T Shimano 9100/8000 - Blk MFPN=HXCPXCXB2 9 width the Evolution offers

9 width the Evolution offers comfort and grip for bikes that travel beyond the city limits

5 Maximum Tire Width 81mm

Model Hex Description Rear Hub End Cap Kit- 12x142/148/157mm

34mm OD double wall 6069 aluminum rim (40% stronger than 6061)

Genuine bite point and reach adjustment without tools accommodates rider preferences

absoluteBLACK Premium Oval Road 38T Shimano 9100/8000 - Blk MFPN=HXCPXCXB2 9 width the Evolution offersCompatibility: Shimano Dura Ace 9100, R9120, R9150 & R9170 Di2 and Ultegra 8000, R8020, R8050 & 8070 Di2, 105 R7000, R7020, R7070. They can also retrofit all 9000 and 6800 series cranks but use bolt covers for best appearance. 10 11 12sp compatible For outer chainring please order "long bolts" from us OR bolt covers. Changing inner chainring to oval only? use original bolts Inner and outer oval chainrings are optimized with smooth shifting in mind