PBR 415 Rear ALU sprocket 45 teeth Aprilia RS 125 '06-'11 – Robyn Racing
Aprilia RS 125 Sport Pro 1994 JT Rear Sprocket 520 42 T | eBay
Chain and Sprocket kit for Aprilia RS 125 X-Ring, 65,84 €
Aprilia RS 125 (80 Km/H Version/German Market) 93 DID VX3 Heavy Duty X-Ring Chain and JT Sprocket Kit Parts at Wemoto - The UK's No.1 On-Line Motorcycle Parts Retailer
60 tooth rear sprocket JT for Aprilia RS4 125 11-17 Tuono 125 17-19 RS125