JT Sprockets

Online Catalogue

Triumph 1050 Sprint ST

2005 to 2011

Front Sprocket

Steel Front Sprocket

Part Number: JTF1180

Teeth: 19

Available Sizes: 17, 18, 19

OE Type Rubber Cushioned Front Sprocket

Part Number: JTF1180RB

Teeth: 19

Available Sizes: 17, 18, 19

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR2011

Teeth: 42

Available Sizes: 42, 43, 44, 45, 46

Drive Chain

Pitch: 530

Length: 106

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
171819
Rear Sprocket422.47
+11.8%
2.33
+5.6%
2.21
standard
432.53
+14.4%
2.39
+8.1%
2.26
+2.4%
442.59
+17.1%
2.44
+10.6%
2.32
+4.8%
452.65
+19.7%
2.50
+13.1%
2.37
+7.1%
462.71
+22.4%
2.56
+15.6%
2.42
+9.5%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)