JT Sprockets

Online Catalogue

Yamaha RD350 A,B

1974 to 1976

Front Sprocket

OE Type Rubber Cushioned Front Sprocket

Part Number: JTF513RB

Teeth: 17

Available Sizes: 15, 16, 17, 18

Steel Front Sprocket

Part Number: JTF513

Teeth: 17

Available Sizes: 13, 14, 15, 16, 17, 18

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR848

Teeth: 37

Available Sizes: 37, 39

Drive Chain

Pitch: 530

Length: 92

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

TeethFront Sprocket
131415161718
Rear Sprocket372.85
+30.8%
2.64
+21.4%
2.47
+13.3%
2.31
+6.2%
2.18
standard
2.06
-5.6%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)