Premium 1X Cannondale Hollowgram direct-mount Oval chainrings designed for Hollowgram crank models. Compatible with old and current models.
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Size (Mass +/-1g): |
30T(61g), 32T(66g), 34T(72g) |
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Color |
Black, Green |
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Compatibility |
Cannondale Hollowgram Si, SiSL, SiSL2 and newest F-Si cranks |
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Material |
CNC machined 7075 Txxx Aluminum |
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Finish |
Type II anodized |
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Chainline |
47-50mm (5.7mm offset). Chainline depends on axle length and spacer configuration. These rings are 3mm offset. |
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Ovality |
Optimized per individual chainring size. Range: 10.2-14.4% and Timing of 110.5-116.3å¡ after TDC (top dead center) Patent Pending |