JT Sprockets

Online Catalogue

Kreidler 125 Street DD (QM125-2D) 80 Kmh Version

2009 to 2010

Front Sprocket

Steel Front Sprocket

Part Number: JTF426

Teeth: 15

Available Sizes: 11, 12, 13, 14, 15, 16

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR269

Teeth: 56

Available Sizes: 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 56

Drive Chain

Pitch: 428

Length: 140

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
111213141516
Rear Sprocket343.09
-17.2%
2.83
-24.1%
2.62
-29.9%
2.43
-34.9%
2.27
-39.3%
2.12
-43.1%
353.18
-14.8%
2.92
-21.9%
2.69
-27.9%
2.50
-33.0%
2.33
-37.5%
2.19
-41.4%
363.27
-12.3%
3.00
-19.6%
2.77
-25.8%
2.57
-31.1%
2.40
-35.7%
2.25
-39.7%
373.36
-9.9%
3.08
-17.4%
2.85
-23.8%
2.64
-29.2%
2.47
-33.9%
2.31
-38.1%
383.45
-7.5%
3.17
-15.2%
2.92
-21.7%
2.71
-27.3%
2.53
-32.1%
2.38
-36.4%
393.55
-5.0%
3.25
-12.9%
3.00
-19.6%
2.79
-25.4%
2.60
-30.4%
2.44
-34.7%
403.64
-2.6%
3.33
-10.7%
3.08
-17.6%
2.86
-23.5%
2.67
-28.6%
2.50
-33.0%
413.73
-0.2%
3.42
-8.5%
3.15
-15.5%
2.93
-21.6%
2.73
-26.8%
2.56
-31.4%
423.82
+2.3%
3.50
-6.3%
3.23
-13.5%
3.00
-19.6%
2.80
-25.0%
2.62
-29.7%
433.91
+4.7%
3.58
-4.0%
3.31
-11.4%
3.07
-17.7%
2.87
-23.2%
2.69
-28.0%
444.00
+7.1%
3.67
-1.8%
3.38
-9.3%
3.14
-15.8%
2.93
-21.4%
2.75
-26.3%
454.09
+9.6%
3.75
+0.4%
3.46
-7.3%
3.21
-13.9%
3.00
-19.6%
2.81
-24.7%
464.18
+12.0%
3.83
+2.7%
3.54
-5.2%
3.29
-12.0%
3.07
-17.9%
2.88
-23.0%
474.27
+14.4%
3.92
+4.9%
3.62
-3.2%
3.36
-10.1%
3.13
-16.1%
2.94
-21.3%
494.45
+19.3%
4.08
+9.4%
3.77
+1.0%
3.50
-6.3%
3.27
-12.5%
3.06
-18.0%
504.55
+21.8%
4.17
+11.6%
3.85
+3.0%
3.57
-4.3%
3.33
-10.7%
3.12
-16.3%
514.64
+24.2%
4.25
+13.8%
3.92
+5.1%
3.64
-2.4%
3.40
-8.9%
3.19
-14.6%
524.73
+26.6%
4.33
+16.1%
4.00
+7.1%
3.71
-0.5%
3.47
-7.1%
3.25
-12.9%
565.09
+36.4%
4.67
+25.0%
4.31
+15.4%
4.00
+7.1%
3.73
standard
3.50
-6.3%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)