Shimano Oval 110BCD 4 holes, 2X, asymmetric Shimano 9000/6800, BLACK

Absolute BLACK Premium Shimano 110/4 bcd compatible oval chainrings are designed for Shimano cranks Dura-Ace 9000, Ultegra 6800 & 105 5800. Super fast shifting and amazing smoothness of pedaling. It is the most Premium oval chainring on the market with scientifically proven performance gains. 10/11spd compatible.

Weight: 34T (31g), 36T (37g), 38T (41g), 50T (120g), 52T (137g), (53T - go to 9100 model)
Colour: Black, Racing Red, Grey (inner ring in black only) Bolts are available in black only
Compatibility: Shimano Dura-Ace 9000, Ultegra 6800, Shimano 105 5800, Tiagra 4700. Compatible with Di2 & Pioneer, SRM and other power meters*
Bolts: For Outer chainring please order Long bolts OR Bolt CoversChanging Inner chainring to oval only? use original bolts
Material & Finish: cnc machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing
Ovality: Optimized to each size separately. 34T- 6.5% ; 36T- 11.4%, 38T- 11.4%, 50/52 - 10.3% ; Timing of 108 -109.5° after TDC (top dead center) - Ideal for road climbing. Patent Pending
We always recommend using a new chain when fitting new chainrings.*34t Premium Series inner chainring is not compatible with power meters which use circular spider (SRAM Quarq, Power2Max, etc) . For those power meters please choose our Silver Series 34t inner oval.