JT Sprockets

Online Catalogue

Yamaha XT600 K

1991 to 1994

Front Sprocket

Steel Front Sprocket

Part Number: JTF577

Teeth: 15

Available Sizes: 14, 15, 16

OE Type Rubber Cushioned Front Sprocket

Part Number: JTF577RB

Teeth: 15

Available Sizes: 15

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR857

Teeth: 39

Available Sizes: 39, 40, 41, 42, 43, 45, 46, 47

Drive Chain

Pitch: 520

Length: 102

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
141516
Rear Sprocket392.79
+7.1%
2.60
standard
2.44
-6.2%
402.86
+9.9%
2.67
+2.6%
2.50
-3.8%
412.93
+12.6%
2.73
+5.1%
2.56
-1.4%
423.00
+15.4%
2.80
+7.7%
2.62
+1.0%
433.07
+18.1%
2.87
+10.3%
2.69
+3.4%
453.21
+23.6%
3.00
+15.4%
2.81
+8.2%
463.29
+26.4%
3.07
+17.9%
2.88
+10.6%
473.36
+29.1%
3.13
+20.5%
2.94
+13.0%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)