Absolute Black Premium Shimano 110/5 (bolt pattern) round chainrings are designed for pre 2014 cranks like Shimano Dura-Ace FC7950, Ultegra FC6750, Shimano 105 -5750 and many more with 5 bolt fitting. These are finest shift-able oval chainrings on the market
Features
Material & Finish : cnc machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing
Compatibility : Shimano Dura-Ace 7950, Ultegra 6750, Shimano 105- 5750, Tiagra 4650, FSA, Rotor 3D & 3D+, S-works and many more older cranks. Also fits Sram Force and Red but NOT compatible with Sram cranks that have 1 hidden chainring bolt (Force22, Red22). Compatible with Di2
Thickness : 5 mm for stiffness
Ramps on big chainring are specially configured for combinations 50/34 - 52/36 - 52/38
Ideal for climbing. Patent Pending
BOLTS : For Outer chainring please order Long bolts.
Colour : Grey
Weight : 50T (118g)
Advantages of Absolute Black chainrings:
One of a kind look
Super stiff design due to thicker, 5mm construction
Bespoke Absolute Black 4 / 6 point ramp and recess shifting design shifts as crisp as original
Finest design that provides excellent strength to weight ratio
Installation steps
First, you need to remove your crank from your bike. Once removed, unscrew 5 bolts that hold two chainrings together. 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.
Aucun avis pour le moment