1984 - 1994
HONDA XR 250
Rear steel sprocket - yamaha gl 51
| JT Sprockets
Fits to:
HONDA XR 250 R [1984 - 1989]
HONDA XR 250 L [1986 - 1994
1996 - 2004 HONDA XR 250
Transmision ratio:
| 12 | 13 | 14 | ||
| 38 | 3.17 -14.2% | 2.92 -20.8% | 2.71 -26.5% | |
| 39 | 3.25 -12.0% | 3.00 -18.8% | 2.79 -24.6% | |
| 40 | 3.33 -9.7% | 3.08 -16.7% | 2.86 -22.6% | |
| 42 | 3.50 -5.2% | 3.23 -12.5% | 3.00 -18.8% | |
| 43 | 3.58 -3.0% | 3.31 -10.4% | 3.07 -16.8% | |
| 44 | 3.67 -0.7% | 3.38 -8.3% | 3.14 -14.9% | |
| 45 | 3.75 +1.6% | 3.46 -6.2% | 3.21 -12.9% | |
| 46 | 3.83 +3.8% | 3.54 -4.2% | 3.29 -11.0% | |
| 47 | 3.92 +6.1% | 3.62 -2.1% | 3.36 -9.1% | |
| 48 | 4.00 +8.3% | 3.69 standard | 3.43 -7.1% | |
| 49 | 4.08 +10.6% | 3.77 +2.1% | 3.50 -5.2% | |
| 50 | 4.17 +12.8% | 3.85 +4.2% | 3.57 -3.3% | |
| 51 | 4.25 +15.1% | 3.92 +6.2% | 3.64 -1.3% | |
| 52 | 4.33 +17.4% | 4.00 +8.3% | 3.71 +0.6% | |
| 53 | 4.42 +19.6% | 4.08 +10.4% | 3.79 +2.5% | |
| 54 | 4.50 +21.9% | 4.15 +12.5% | 3.86 +4.5% | |
| 55 | 4.58 +24.1% | 4.23 +14.6% | 3.93 +6.4% | |
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