1975 - 1976
YAMAHA MX 250
Steel front sprocket
| JT Sprockets
Fits to:
YAMAHA MX250 B [1975 - 1976]
1975 - 1976 YAMAHA MX 250
Transmision ratio:
| 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | ||
| 38 | 3.80 -1.2% | 3.45 -10.2% | 3.17 -17.7% | 2.92 -24.0% | 2.71 -29.4% | 2.53 -34.1% | 2.38 -38.2% | 2.24 -41.9% | 2.11 -45.1% | |
| 40 | 4.00 +4.0% | 3.64 -5.5% | 3.33 -13.3% | 3.08 -20.0% | 2.86 -25.7% | 2.67 -30.7% | 2.50 -35.0% | 2.35 -38.8% | 2.22 -42.2% | |
| 41 | 4.10 +6.6% | 3.73 -3.1% | 3.42 -11.2% | 3.15 -18.0% | 2.93 -23.9% | 2.73 -28.9% | 2.56 -33.4% | 2.41 -37.3% | 2.28 -40.8% | |
| 42 | 4.20 +9.2% | 3.82 -0.7% | 3.50 -9.0% | 3.23 -16.0% | 3.00 -22.0% | 2.80 -27.2% | 2.62 -31.8% | 2.47 -35.8% | 2.33 -39.3% | |
| 43 | 4.30 +11.8% | 3.91 +1.6% | 3.58 -6.8% | 3.31 -14.0% | 3.07 -20.1% | 2.87 -25.5% | 2.69 -30.1% | 2.53 -34.2% | 2.39 -37.9% | |
| 44 | 4.40 +14.4% | 4.00 +4.0% | 3.67 -4.7% | 3.38 -12.0% | 3.14 -18.3% | 2.93 -23.7% | 2.75 -28.5% | 2.59 -32.7% | 2.44 -36.4% | |
| 45 | 4.50 +17.0% | 4.09 +6.4% | 3.75 -2.5% | 3.46 -10.0% | 3.21 -16.4% | 3.00 -22.0% | 2.81 -26.9% | 2.65 -31.2% | 2.50 -35.0% | |
| 46 | 4.60 +19.6% | 4.18 +8.7% | 3.83 -0.3% | 3.54 -8.0% | 3.29 -14.6% | 3.07 -20.3% | 2.88 -25.2% | 2.71 -29.6% | 2.56 -33.6% | |
| 47 | 4.70 +22.2% | 4.27 +11.1% | 3.92 +1.8% | 3.62 -6.0% | 3.36 -12.7% | 3.13 -18.5% | 2.94 -23.6% | 2.76 -28.1% | 2.61 -32.1% | |
| 48 | 4.80 +24.8% | 4.36 +13.5% | 4.00 +4.0% | 3.69 -4.0% | 3.43 -10.9% | 3.20 -16.8% | 3.00 -22.0% | 2.82 -26.6% | 2.67 -30.7% | |
| 49 | 4.90 +27.4% | 4.45 +15.8% | 4.08 +6.2% | 3.77 -2.0% | 3.50 -9.0% | 3.27 -15.1% | 3.06 -20.4% | 2.88 -25.1% | 2.72 -29.2% | |
| 50 | 5.00 +30.0% | 4.55 +18.2% | 4.17 +8.3% | 3.85 standard | 3.57 -7.1% | 3.33 -13.3% | 3.12 -18.8% | 2.94 -23.5% | 2.78 -27.8% | |
| 51 | 5.10 +32.6% | 4.64 +20.5% | 4.25 +10.5% | 3.92 +2.0% | 3.64 -5.3% | 3.40 -11.6% | 3.19 -17.1% | 3.00 -22.0% | 2.83 -26.3% | |
| 52 | 5.20 +35.2% | 4.73 +22.9% | 4.33 +12.7% | 4.00 +4.0% | 3.71 -3.4% | 3.47 -9.9% | 3.25 -15.5% | 3.06 -20.5% | 2.89 -24.9% | |
Specifications
| Manufacturer | JT Sprockets |
|---|---|
| Chain pitch | 520 |
| Type | Countershaft |
| Position | Front |
| Units | Each |
| Number of teeth | 10 |
| Material | Steel |
| Material | Steel |
| Position | Front |
| Units | Each |
| Chain pitch | 520 |
| Type | Countershaft |
| Number of teeth | 11 |
| Chain pitch | 520 |
| Number of teeth | 12 |
| Type | Countershaft |
| Position | Front |
| Units | Each |
| Material | Steel |
| Material | Steel |
| Position | Front |
| Type | Countershaft |
| Units | Each |
| Chain pitch | 520 |
| Number of teeth | 13 |
| Material | Steel |
| Units | Each |
| Chain pitch | 520 |
| Number of teeth | 15 |
| Type | Countershaft |
| Position | Front |
| Color | Natural |
| Material | Chromoly Steel |
| Position | Front |
| Units | Each |
| Chain pitch | 520 |
| Number of teeth | 18 |
| Type | Countershaft |