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Continue to ChatSprocket - Front, 15 Tooth, 420 Chain, 20mm Hole - 20A1521 - PBC3264F1 - https://electricbikeusa.net/express-parts-catalog/sprockets/sprocket-front-15-tooth-420-chain-20mm-hole-20a1521-pbc3264f1
Sprocket - Front, 15 Tooth, 420 Chain, 20mm Hole - 20A1521 - PBC3264F1 - https://electricbikeusa.net/express-parts-catalog/sprockets/sprocket-front-15-tooth-420-chain-20mm-hole-20a1521-pbc3264f1