Online Catalogue

Gilera 125 R1/R1/S

1988 to 1989

Front Sprocket

Part Number: TBA

Teeth: 13

Available Sizes:

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR5

Teeth: 44

Available Sizes: 39, 40, 41, 43, 44, 45, 46, 47, 49

Drive Chain

Pitch: 520

Length: 110

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

Teeth		Front Sprocket
Teeth		13
Rear Sprocket	44	3.38 standard

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)