absoluteBLACK
Oval 104BCD Narrow/Wide Chainring

absoluteBLACK Premium 1X 104 & 64bcd Oval traction narrow wide chainrings are designed for any cranks that use 104bcd mounting interface. This is the most common mounting standard for Shimano and other 4 arm cranks. It is the most Premium oval chainring on the market with scientifically proven performance gains.

Weight: 64BCD: 26T (35g), 28T (42g)30T 104BCD: 36g - comes with special bolts and spacers104BCD: 32T (41g), 34T (44g), 36T (53g)
Colour: Black, Red
Compatibility: All cranks with 4x 104BCD interface. That means Shimano XT / Zee / Deore / SLX / XTR, Race Face Sixc, RF Ride, RF Chester, RF Respond, FSA, E13 and many more. Not compatible with Shimano HG+ chain
Material: cnc machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing
Chainline: 26&28T (64bcd) - 46mm ; 30T - 48mm ; 32T - 48.5mm ; 34&36T - 50mm
Mounting holes: 4 x 104mm BCD (for 32T ring, bolts should be min 6mm long)
Ovality: Optimized to each size separately. Range: 10.2-14.4% and Timing of 110.5-116.3° after TDC (top dead center) Patent Pending