JT Sprockets

Online Catalogue

Yamaha YZF R1 World GP 50th Anniversary Edition

2012

Front Sprocket

Steel Front Sprocket

Part Number: JTF579

Teeth: 17

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

OE Type Rubber Cushioned Front Sprocket

Part Number: JTF579RB

Teeth: 17

Available Sizes: 16, 17

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR1479

Teeth: 47

Available Sizes: 38, 42, 43, 45, 47, 48

Drive Chain

Pitch: 530

Length: 120

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 Sprocket382.71
-1.8%
2.53
-8.4%
2.38
-14.1%
2.24
-19.1%
2.11
-23.6%
423.00
+8.5%
2.80
+1.3%
2.62
-5.1%
2.47
-10.6%
2.33
-15.6%
433.07
+11.1%
2.87
+3.7%
2.69
-2.8%
2.53
-8.5%
2.39
-13.6%
453.21
+16.3%
3.00
+8.5%
2.81
+1.7%
2.65
-4.3%
2.50
-9.6%
473.36
+21.4%
3.13
+13.3%
2.94
+6.3%
2.76
standard
2.61
-5.6%
483.43
+24.0%
3.20
+15.7%
3.00
+8.5%
2.82
+2.1%
2.67
-3.5%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)