JT Sprockets

Online Catalogue

Honda CBR1000 RR-6,7 Fireblade <<< 520 Chain Conversion

2006 to 2007

Front Sprocket

Steel Front Sprocket

Part Number: JTF1269

Teeth: 16

Available Sizes: 14, 15, 16, 17

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR1308

Teeth: 42

Available Sizes: 40, 42, 45

Aluminium Rear Race Sprocket

Part Number: JTA1308

Teeth: 42

Available Sizes: 40, 41, 42, 43, 44, 45, 46, 47, 48

Drive Chain

Pitch: 520

Length: 114

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
14151617
Rear Sprocket402.86
+8.8%
2.67
+1.6%
2.50
-4.8%
2.35
-10.4%
412.93
+11.6%
2.73
+4.1%
2.56
-2.4%
2.41
-8.1%
423.00
+14.3%
2.80
+6.7%
2.62
standard
2.47
-5.9%
433.07
+17.0%
2.87
+9.2%
2.69
+2.4%
2.53
-3.6%
443.14
+19.7%
2.93
+11.7%
2.75
+4.8%
2.59
-1.4%
453.21
+22.4%
3.00
+14.3%
2.81
+7.1%
2.65
+0.8%
463.29
+25.2%
3.07
+16.8%
2.88
+9.5%
2.71
+3.1%
473.36
+27.9%
3.13
+19.4%
2.94
+11.9%
2.76
+5.3%
483.43
+30.6%
3.20
+21.9%
3.00
+14.3%
2.82
+7.6%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)