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AbsoluteBlack Winter Line Oval BCD110x5 Road Chainring (For Shimano)

AbsoluteBlack Winter Line Oval BCD110x5 Road Chainring (For Shimano)

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absluteBLACKSilver Series line of Shimano 110/5 bcd oval chainrings are designed forpre-2014 cranks like Shimano Dura-Ace FC7900, Ultegra FC6750, Shimano 105 -5750and many more with 5 bolt fitting. This is a simplified version of our Premiumline. Same aluminium, teeth and shifting ramps, but less material machined outon the outer side for easy maintenance and cleaning.


Size(Mass +/-1g): 34T (39g), 36T (43g), 50T(150g), 52T (160g)

Compatibility:Shimano Dura-Ace 7900, 7950, Ultegra 6750, Shimano 105- 5700, Tiagra 4650, FSA,Rotor 3D & 3D+, S-works and many more cranks. Also fits Sram Force and Redbut NOT compatible with Sram cranks that have 1 hidden chainring bolt (Force22,Red22). Compatible with Di2

BOLTS: For Outer chainring please order Longbolts. Changing Inner chainring tooval only? use original bolts

Material& Finish: cnc machined 7075 TxxxAluminum. Long-lasting construction. Type II anodizing

Ovality: Optimized to each size separately.34T- 6.5% ; 36T- 11.4%, 50/52 - 10.3% ; Timing of 108 -109.5° after TDC (topdead center) - Ideal for road climbing. Patent Pending


SilverSeries line of chainrings is a simplified version of our state-of-the-artPremium line. They use same aluminium, teeth and shifting ramp design. Howeverthey are less machined out from the front for easy maintenance and cleaning.

AbsoluteBlack always recommends using a new chain when fitting new chainrings.



*Oneof a kind special oval shape that helps you climb easier and faster (PatentPending)

*Over15% stiffer than Rotor Qrings due to thicker, 5mm construction

*BespokeAbsoluteBlack 6 point ramp and recess shifting design shifts better than anyother brand and model of oval chainring

*30%heavier than our Premium chainirngs, but very easy to clean.

*Youwill not "feel" the oval shape while pedaling

*Yourpedaling action will feel smoother

*Helpsreduce stress on knees and helping your legs remain fresher for longer

*Youwill be able to maintain better cadence while climbing

*Reducespossibility of leg cramps

*Youwill reduce chainring/cog shifts by at least 15%



First,you need to remove crank from your bike. Once removed, unscrew the 5 bolts thathold two chainrings together with a T-30 torx key. Remove both original rings.Locate the new oval inner chainring with the triangular timing indicatorpositioned 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 - theserecesses should face you when mounting the bolts. AbsoluteBlack Outer chainringhas a dimple mark - position the outer chainring to line up that dimple withthe crank arm.


Ifyou are only switching the inner chainring to oval - use the original boltsthat came with your crank. If you are switching to a pair of oval chainrings,you will need a set of regular ‘double’ chainring bolts (Long bolts in ouroffering). Tighten all five bolts with force of about 5-6Nm. Mount your crankback to the bike. You may also need to adjust the front derailleur upwards by2-4mm.


AllAbsolute Black products are designed in UK and manufactured in Poland (EU) tothe highest standards of quality.


Cranksvisible on the photos are not included to the purchased chainrings.

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