1976 - 1978
YAMAHA YB 100
Steel front sprocket
| JT Sprockets
Fits to:
YAMAHA YB100 [1976 - 1978]
1976 - 1978 YAMAHA YB 100
Transmision ratio:
| 12 | 13 | 14 | 15 | 16 | ||
| 25 | 2.08 -13.2% | 1.92 -19.9% | 1.79 -25.6% | 1.67 -30.6% | 1.56 -34.9% | |
| 26 | 2.17 -9.7% | 2.00 -16.7% | 1.86 -22.6% | 1.73 -27.8% | 1.62 -32.3% | |
| 28 | 2.33 -2.8% | 2.15 -10.3% | 2.00 -16.7% | 1.87 -22.2% | 1.75 -27.1% | |
| 30 | 2.50 +4.2% | 2.31 -3.8% | 2.14 -10.7% | 2.00 -16.7% | 1.88 -21.9% | |
| 31 | 2.58 +7.6% | 2.38 -0.6% | 2.21 -7.7% | 2.07 -13.9% | 1.94 -19.3% | |
| 32 | 2.67 +11.1% | 2.46 +2.6% | 2.29 -4.8% | 2.13 -11.1% | 2.00 -16.7% | |
| 35 | 2.92 +21.5% | 2.69 +12.2% | 2.50 +4.2% | 2.33 -2.8% | 2.19 -8.9% | |
| 36 | 3.00 +25.0% | 2.77 +15.4% | 2.57 +7.1% | 2.40 standard | 2.25 -6.2% | |
| 37 | 3.08 +28.5% | 2.85 +18.6% | 2.64 +10.1% | 2.47 +2.8% | 2.31 -3.6% | |
| 38 | 3.17 +31.9% | 2.92 +21.8% | 2.71 +13.1% | 2.53 +5.6% | 2.38 -1.0% | |
| 39 | 3.25 +35.4% | 3.00 +25.0% | 2.79 +16.1% | 2.60 +8.3% | 2.44 +1.6% | |
| 41 | 3.42 +42.4% | 3.15 +31.4% | 2.93 +22.0% | 2.73 +13.9% | 2.56 +6.8% | |
| 43 | 3.58 +49.3% | 3.31 +37.8% | 3.07 +28.0% | 2.87 +19.4% | 2.69 +12.0% | |
| 45 | 3.75 +56.2% | 3.46 +44.2% | 3.21 +33.9% | 3.00 +25.0% | 2.81 +17.2% | |
| 48 | 4.00 +66.7% | 3.69 +53.8% | 3.43 +42.9% | 3.20 +33.3% | 3.00 +25.0% | |
| 52 | 4.33 +80.6% | 4.00 +66.7% | 3.71 +54.8% | 3.47 +44.4% | 3.25 +35.4% | |
Specifications
| Manufacturer | JT Sprockets |
|---|---|
| Position | Front |
| Type | Countershaft |
| Units | Each |
| Chain pitch | 420 |
| Number of teeth | 11 |
| Material | Steel |
| Position | Front |
| Type | Countershaft |
| Units | Each |
| Chain pitch | 420 |
| Number of teeth | 12 |
| Material | Steel |
| Position | Front |
| Type | Countershaft |
| Units | Each |
| Chain pitch | 420 |
| Number of teeth | 13 |
| Material | Steel |
| Position | Front |
| Type | Countershaft |
| Units | Each |
| Chain pitch | 420 |
| Number of teeth | 14 |
| Material | Steel |
| Position | Front |
| Type | Countershaft |
| Units | Each |
| Chain pitch | 420 |
| Number of teeth | 15 |
| Material | Chromoly Steel |
| Color | Natural |
| Chain pitch | 420 |
| Number of teeth | 16 |
| Chain pitch | 420 |
| Number of teeth | 17 |