Absolute Black Oval 2x Asymmetric Shimano 9000/6800 110 BCD Chainring

These Premium Shimano 110/4 bcd compatible oval chainrings are designed for Shimano cranks like Dura-Ace 9000, Ultegra 6800, 105- 5800 and others.

These are finest oval chainrings on the market in terms of shifting, smoothness of pedaling and manufacturing quality.

Not compatible with FSA cranks.

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.

Size (Mass +/-1g):

34T (31g), 36T (37g), 38T (41g), 50T (120g), 52T (137g) (53T coming soon).

´´Our Premium Shimano 130/5(bolt pattern) oval chainrings are designed for pre 2014 cranks like Shimano Dura-Ace FC7900, FC7800, Ultegra FC6700, Shimano 105 -5700 and many more.

These are finest shift-able oval chainrings on the market.

If your current chainrings are 53/39T this is a model you require.

Ovality:

Optimized to each size separately.

39T- 6.5%, 53T – 10.3%.

Timing of 108.5° after TDC (top dead center).

Patent Pending.

Size (Mass +/-1g):

39T (34g), 53T (110g).

BOLTS.

For Outer chainring please order Long bolts.

Changing Inner chainring to oval only? use original bolts.