1999 - 2022
YAMAHA YZ 125
Rear steel sprocket - yamaha gl 51
| JT Sprockets
Fits to:
YAMAHA YZ 125 X [2020 - 2022]
YAMAHA YZ 125 [1999 - 2021]
YAMAHA YZ 125 Monster Energy Racing Edition [2022 - 2022
YAMAHA YZ 125 [2006 - 2020]
YAMAHA YZ 125 [2006 - 2018]
2017 - 2021 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| Gold |
| Material | 7075-T6 Aluminum| Carbon Steel |
| Chain pitch | 520 |
| Position | Rear |
| Number of teeth | 51 |
| Style | Twinstar |
| Type | Drive |
| Units | Each |
Product description
Steel outer ring Heat-induction hardened high-carbon steel JT advanced tempering process achieves hardness that could last six times longer than a 7075-T6 aluminum sprocket, enhancing power transfer performance Alu core Lightweight aviation-grade ergal 7075-T6 aluminum Precision made using state of the art laser cutting and CNC equipment, resulting in an ultra lightweight race power design