AbsoluteBLACK OVAL Direct mount 1X chainring for Cannondale and FSA crankset

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Our premium 1X Cannondale Hollowgram compatible direct mount, narrow wide Oval chainrings are designed for Hollowgram and FSA Modular crank family. Compatible with old and newest m odels. 10/11 and 12spd optimized. Climb faster, pedal easier, go oval. Our Cannondale Direct Mount oval chainrings are designed with an offset that works best with Cannondale Ai-drivetrain (FSI). When used on non Ai / FSI Frames, our direct mount oval has 3mm less offset than original, non-Ai Cannondale chainring/spider. So in order to achieve perfect chainline, you will need in this case, to change the spacers on the BB axle and move right side crank closer to the frame. This is an easy task and sets the crank in very good position in relation to the frame. Size (Mass +/-1g): 30T(61g), 32T(66g), 34T(72g) Color Black, Green Compatibility Cannondale Hollowgram Si, SiSL, SiSL2 and FSA Modular cranks like SL-K , afterburner, Comet. chain: 9, 10, 11 and 12spd Eagle compatible. Material cnc machined 7075 Txxx Aluminum. Long-lasting construction Finish anodized Chainline 47-52mm (3.7mm offset). Chainline depends on the length of the axle you use and spacers configuration. 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 Show more