Aprilia 50 RS4 2T E4
Steel Front Sprocket
Part Number: JTF1128
Available Sizes: 11
Steel Rear Sprocket
Part Number: JTR1133
Available Sizes: 52, 53, 59, 65
Please note that the chain shown in this listing is for size reference only. For the correct chain type and grade, please refer to the vehicle's manufacturer manual.
Gear Ratio Chart
Lower gear ratios allow for higher top speeds.
Higher gear ratios increase torque for better acceleration.