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absoluteBLACK Premium 1X 104BCD 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. 10/11/12spd compatible
Size (Mass +/-1g):
30T 104BCD: 36g - comes with special bolts and spacers
104BCD: 32T (41g), 34T (44g), 36T (53g)
Color
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. 9, 10, 11 and 12spd Eagle compatible.
Material
cnc machined 7075 Txxx Aluminum. Long-lasting construction. Type II anodizing
Chainline
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
