JT Sprockets

Online Catalogue

Yamaha DT80 MX-S

1983 to 1984

Front Sprocket

Steel Front Sprocket

Part Number: JTF542

Teeth: 13

Available Sizes: 10, 13, 14, 15

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR833

Teeth: 41

Available Sizes: 41, 49, 54

Drive Chain

Pitch: 428

Length: 108

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
13
Rear Sprocket413.15
standard

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)