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Continue to ChatSprocket - Rear, 428 Chain, 38 Tooth - 20A1179 - PBC3230F1 - https://www.giobikes.net/express-parts-catalog/sprockets/sprocket-rear-428-chain-38-tooth-20a1179-pbc3230f1
Sprocket - Rear, 428 Chain, 38 Tooth - 20A1179 - PBC3230F1 - https://www.giobikes.net/express-parts-catalog/sprockets/sprocket-rear-428-chain-38-tooth-20a1179-pbc3230f1