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AbsoluteBlack Winter Line Oval BCD110x4 Road Chainring (For Shimano)

AbsoluteBlack Winter Line Oval BCD110x4 Road Chainring (For Shimano)

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OurSilver Series line of Shimano 110/4 bcd oval chainrings is designed for newtype of Shimano cranks like Dura-Ace 9000, Ultegra 6800, 105- 5800 and others.This is a simplified version of our Premium line. Same aluminium, teeth andshifting ramps, but less material machined out on the outer side for easymaintenance and cleaning.


Size(Mass +/-1g): 34T (40g), 36T (44g), 50T(156g), 52T (168g)

Compatibility: Shimano Dura-Ace 9000, Ultegra 6800,Shimano 105 5800, Tiagra 4700. Compatible with Di2 & Pioneer, SRM and otherpower meters

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 4 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 four 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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