FSA Chainring Code: WA421. FSA K-Force Light ABS Alloy Outer Chainring 53t (Fits 53-39) 110bcd. NOT counterfeit. Outer size: 53t (Designed to pair with 39t Inner Ring). Machined from AL7075-T6, they are ramped and pinned by the shift-obsessed engineers at FSA to ensure that shifting is precise and smooth with no chain suck.
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