silver series OVAL ROAD 2X 110/5 BCD chainring
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absluteBLACK Silver Series line of Shimano 110/5 bcd oval chainrings are designed for pre-2014 cranks like Shimano Dura-Ace FC7900, Ultegra FC6750, Shimano 105 -5750 and many more with 5 bolt fitting. This is a simplified version of our Premium line. Same aluminium, teeth and shifting ramps, but less material machined out on the outer side for easy maintenance and cleaning.
" After 3 hours of riding I think I'll never change for round chainring. I'm not faster but i can feel much comfortable riding and linear effort. "
"Initially, reluctant. However, after month of riding I am very impressed with the power distribution and no knee pain. AB undoubtable got it nailed. You won't even know your are riding an OVAL after 15 minutes time."
" I'm absolutely impressed how well they shift, which was my biggest fear."
" I’ll never go back to round and will order one for each of my bikes. Super smooth, eased my knee pain, and has helped my climbs ten fold"
" I was quite skeptical until a friend of mine got AB oval rings. He was blown away with how good they were so I got some too and have to say I’m absolutely delighted."
"I particularly notice the difference climbing. Just seems to be easier and I feel like I’m turning circles rather than ‘mashing’."
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Size (Mass +/-1g): |
34T (39g), 36T (43g), 50T (150g), 52T (160g) |
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Color |
GREY only |
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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 Red but NOT compatible with Sram cranks that have 1 hidden chainring bolt (Force22, Red22). Compatible with Di2 |
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BOLTS |
For Outer chainring please order Long bolts Changing Inner chainring to oval only? use original bolts |
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Material & Finish |
cnc machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing |
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Ovality |
Optimized to each size separately. 34T- 6.5% ; 36T- 11.4%, 50/52 - 10.3% ; Timing of 108 -109.5° after TDC (top dead center) - Ideal for road climbing. Patent Pending |
Silver Series line of chainrings is a simplified version of our state-of-the-art Premium line. They use same aluminium, teeth and shifting ramp design. However they are less machined out from the front for easy maintenance and cleaning.
Absolute Black always recommends using a new chain when fitting new chainrings.
Advantages of Absolute Black Silver Series 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 AbsoluteBlack 6 point ramp and recess shifting design shifts better than any other brand and model of oval chainring
*30% heavier than our Premium chainirngs, but very easy to clean.
*You will not "feel" the oval shape while pedaling
*Your pedaling 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 Silver Series line 110/5 Oval chainring:
First, you need to remove crank from your bike. Once removed, unscrew the 5 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. AbsoluteBlack Outer chainring has a dimple mark - position the outer chainring to line up that dimple 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 chainrings, you will need a set of regular ‘double’ chainring bolts (Long bolts in our offering). Tighten all five bolts with force of about 5-6Nm. Mount your crank back to the bike. You may also need to adjust the front derailleur upwards by 2-4mm.
All Absolute Black products are designed in UK and manufactured in Poland (EU) to the highest standards of quality.
Cranks visible on the photos are not included to the purchased chainrings.