PREMIUM OVAL ROAD FOR R9100 & ULTEGRA R8000 & 105 R7000

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absoluteBLACK Premium Shimano 110/4 bcd compatible oval chainrings are designed for new type of Shimano cranks Dura-Ace 9100, Ultegra 8000 & 105 R7000 only. These are finest oval chainrings on the market in terms of shifting, smoothness of pedaling and manufacturing quality. (They can be also retrofitted to 9000 and 6800 cranks). 10/11/12spd compatible.

Size (Mass +/-1g):

34T (31g), 36T (37g), 38T (41g), 39T (42g), 50T (120g), 52T (137g), 53T(139g)

Color

Black, Grey, Champagne (inner ring in black only)

Compatibility

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 / 12spd compatible.

BOLTS

For Outer chainring please order "Long bolts" from us OR Bolt Covers

Changing 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, 38T, 39T- 11.4%, 50/52/53T - 10-11.2% ; Timing of 108 -110.5° after TDC (top dead center) - Ideal for road climbing. Patent Pending