Description
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.
Advantages of absoluteBlack Road Oval Chainrings:
- One of a kind special oval shape that helps you climb easier and faster (Patent Pending)
- Over 15% stiffer than Rotor Qrings due to thicker, 5mm construction
- Bespoke Absolute Black 6 point ramp and recess shifting design shifts better than any other brand and model of oval chainring
- Finest design that provides excellent strength to weight ratio
- You will not “feel” the oval shape while pedaling
- Your pedalling action will feel smoother
- Helps reduce stress on knees and helping your legs remain fresher for longer
- You will be able to maintain better cadence while climbing
- Reduces possibility of leg cramps
- You will reduce chainring/cog shifts by at least 15%
How to mount 110/4 Oval Chainring:
First, you need to remove your crank from your bike. Once removed, unscrew the 4 bolts that hold two chainrings together with a T-30 torx key. Remove both original rings. Locate the new oval inner chainring with the triangular timing indicator positioned behind crank arm. The bolt holes on the small chainring are recessed – so the nut heads will sit flush with the surface of the chainring – these recesses should face you when mounting the bolts. Absolute Black outer chainrings have a specific recess to accommodate the rear edge of the crank arm – position the outer ring to line up that recess with the crank arm. If you are only switching the inner chainring to oval – use the original bolts that came with your crank. If you are switching to a pair of oval rings, you will need a set of regular ‘double’ chainring bolts. Tighten all four bolts with force of about 5-7Nm. Mount your crank back to the bike. You may also need to adjust the front derailleur upwards by 2-3mm.
- Size : 50T (120g), 52T (137g) (53T – go to 9100 model)
- Colour Options : Black, Racing Red, Grey (inner ring 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 Covers Changing Inner chainring to oval only? use original bolts
- Material : 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.
