JT Sprockets

Online Catalogue

Triumph 865 Thruxton Ace Cafe

2015

Front Sprocket

Steel Front Sprocket

Part Number: JTF1183

Teeth: 18

Available Sizes: 17, 18

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR1792

Teeth: 43

Available Sizes: 40, 41, 42, 43, 44, 45, 47, 48

Drive Chain

Pitch: 525

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
1718
Rear Sprocket402.35
-1.5%
2.22
-7.0%
412.41
+1.0%
2.28
-4.7%
422.47
+3.4%
2.33
-2.3%
432.53
+5.9%
2.39
standard
442.59
+8.3%
2.44
+2.3%
452.65
+10.8%
2.50
+4.7%
472.76
+15.7%
2.61
+9.3%
482.82
+18.2%
2.67
+11.6%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)