Absolute Black Oval 1x 2x 9100/8000/9000/6800 With Bolts 104 BCD Chainring

AbsoluteBLACK 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.

10/11/12spd compatible.

Size (Mass +/-1g):

34T (31g), 36T (37g), 38T (41g), 50T (120g), 52T (137g), (53T – go to 9100 model).

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 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- 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.

Absolute Black always recommends 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.