1980 - 1998
YAMAHA YZ 125
Sprocket rear 40t 520 blk
| JT Sprockets
Fits to:
YAMAHA YZ125 K [1983 - 1983]
YAMAHA YZ125 W,A,B,D [1989 - 1992]
YAMAHA YZ125 T [1987 - 1987]
YAMAHA YZ125 U [1988 - 1988]
YAMAHA YZ125 L [1984 - 1984]
YAMAHA YZ125 E,F,G,H [1993 - 1996]
YAMAHA YZ125 G [1980 - 1980]
YAMAHA YZ125 N [1985 - 1985]
YAMAHA YZ125 S [1986 - 1986]
YAMAHA YZ125 J,K [1997 - 1998]
YAMAHA YZ125 H,J [1981 - 1982]
2002 - 2004 YAMAHA YZ 125
Transmision ratio:
| 12 | 13 | 14 | ||
| 38 | 3.17 -16.0% | 2.92 -22.4% | 2.71 -28.0% | |
| 46 | 3.83 +1.7% | 3.54 -6.1% | 3.29 -12.8% | |
| 47 | 3.92 +3.9% | 3.62 -4.1% | 3.36 -10.9% | |
| 48 | 4.00 +6.1% | 3.69 -2.0% | 3.43 -9.0% | |
| 49 | 4.08 +8.3% | 3.77 standard | 3.50 -7.1% | |
| 50 | 4.17 +10.5% | 3.85 +2.0% | 3.57 -5.2% | |
| 51 | 4.25 +12.8% | 3.92 +4.1% | 3.64 -3.4% | |
| 52 | 4.33 +15.0% | 4.00 +6.1% | 3.71 -1.5% | |
Specifications
| Manufacturer | JT Sprockets |
|---|---|
| Color | Black| Zinc |
| Chain pitch | 520 |
| Position | Rear |
| Number of teeth | 40 |
| Type | Drive |
| Units | Each |
| Material | C49 High Carbon Steel |