JT Sprockets

Online Catalogue

Yamaha FZR400 Genesis <<< 520 Chain Conversion (1WG) — Japan

1988

Front Sprocket

Steel Front Sprocket

Part Number: JTF578

Teeth: 15

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

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR846

Teeth: 44 Check Availability

Available Sizes: 37, 39, 40, 41, 43, 45

Drive Chain

Pitch: 520

Length: 104

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
1415161718
Rear Sprocket372.64
-9.9%
2.47
-15.9%
2.31
-21.2%
2.18
-25.8%
2.06
-29.9%
392.79
-5.0%
2.60
-11.4%
2.44
-16.9%
2.29
-21.8%
2.17
-26.1%
402.86
-2.6%
2.67
-9.1%
2.50
-14.8%
2.35
-19.8%
2.22
-24.2%
412.93
-0.2%
2.73
-6.8%
2.56
-12.6%
2.41
-17.8%
2.28
-22.3%
433.07
+4.7%
2.87
-2.3%
2.69
-8.4%
2.53
-13.8%
2.39
-18.6%
443.14
+7.1%
2.93
standard
2.75
-6.2%
2.59
-11.8%
2.44
-16.7%
453.21
+9.6%
3.00
+2.3%
2.81
-4.1%
2.65
-9.8%
2.50
-14.8%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)