Direct Mount Round Chainring 30T-BoostDon't let chain drops ruin your ride, use our narrow wide chainring for maximum chain retention even through the rough stuff! New Our DM round chainrings are now hard anodised, this ensures longer life by using a very hard surface finish. DM mounting standard means this chainring is compatible with the Lyne Pulse cranksets or a Sram DM cranks. This is a 3mm offset ring and is best paired with boost(148mm) spacing on the rear, this chainring can also
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