Online Catalogue

Aprilia 250 Tuareg Rally

1985 to 1989

Front Sprocket

OE Type Rubber Cushioned Front Sprocket

Part Number: JTF402RB

Teeth: 16

Available Sizes: 16

Steel Front Sprocket

Part Number: JTF402

Teeth: 16

Available Sizes: 13, 14, 15, 16, 17

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR17

Teeth: 42 Check Availability

Available Sizes:

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	14	15	16	17
Rear Sprocket	42	3.23 +23.1%	3.00 +14.3%	2.80 +6.7%	2.62 standard	2.47 -5.9%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)