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FSA Gossamer Pro MegaTooth 4 x 110mm BCD Chainring 40T
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Only fits Gossamer Pro 386EVO cranks, with 4 bolt ABS spider (Asymmetric Bolt Spacing).
- Precision CNC machined AL7075/T6
- Long tooth profile enhances chain retention
- Thick-thin tooth design for maximum chain engagement
- Compatible with 10/11 speed drivetrains
Note: these rings do NOT fit 110mm BCD cranks with evenly spaced 64.7mm center-to-center bolt spacing.