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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
chain rings
Covered by our Lifetime Crash Replacement Policy to the original owner
Perfect for carrying tire repair items on bikes with limited space
Gearing gives a low 32T sprocket making it easier to climb even the steepest of hills
Shimano ST-R8170 STI Shifter Right w/ BR-R8170 Front Calliper 12-Speed Di2 Autumn Sale chain ringsDURA ACE shared DNA The new R8100 series is designed for those seeking their next competitive advantage. Sharing the same DNA offering the same incredible performance of the R9200 series across all functions, empowering the rider to take their ride to the next level. Wireless Simplicity The revised Di2 platform featured on the DURA ACE series is now standard with the ULTEGRA R8100 series. Making the shifter derailleur system completely wireless,
