1999 - 2006
KTM 640 SUPERMOTO LC4
Rear steel sprocket - ktm or 49
| JT Sprockets
Fits to:
KTM LC4 640 E Supermoto [1999 - 2006]
1999 - 2005 KTM 640 SUPERMOTO LC4
Transmision ratio:
| 12 | 13 | 14 | 15 | 16 | 17 | ||
| 38 | 3.17 +28.2% | 2.92 +18.3% | 2.71 +9.9% | 2.53 +2.5% | 2.38 -3.9% | 2.24 -9.5% | |
| 40 | 3.33 +34.9% | 3.08 +24.5% | 2.86 +15.6% | 2.67 +7.9% | 2.50 +1.2% | 2.35 -4.8% | |
| 41 | 3.42 +38.3% | 3.15 +27.7% | 2.93 +18.5% | 2.73 +10.6% | 2.56 +3.7% | 2.41 -2.4% | |
| 42 | 3.50 +41.7% | 3.23 +30.8% | 3.00 +21.4% | 2.80 +13.3% | 2.62 +6.2% | 2.47 standard | |
| 44 | 3.67 +48.4% | 3.38 +37.0% | 3.14 +27.2% | 2.93 +18.7% | 2.75 +11.3% | 2.59 +4.8% | |
| 45 | 3.75 +51.8% | 3.46 +40.1% | 3.21 +30.1% | 3.00 +21.4% | 2.81 +13.8% | 2.65 +7.1% | |
| 46 | 3.83 +55.2% | 3.54 +43.2% | 3.29 +33.0% | 3.07 +24.1% | 2.88 +16.4% | 2.71 +9.5% | |
| 47 | 3.92 +58.5% | 3.62 +46.3% | 3.36 +35.9% | 3.13 +26.8% | 2.94 +18.9% | 2.76 +11.9% | |
| 48 | 4.00 +61.9% | 3.69 +49.5% | 3.43 +38.8% | 3.20 +29.5% | 3.00 +21.4% | 2.82 +14.3% | |
| 49 | 4.08 +65.3% | 3.77 +52.6% | 3.50 +41.7% | 3.27 +32.2% | 3.06 +24.0% | 2.88 +16.7% | |
| 50 | 4.17 +68.7% | 3.85 +55.7% | 3.57 +44.6% | 3.33 +34.9% | 3.12 +26.5% | 2.94 +19.0% | |
| 51 | 4.25 +72.0% | 3.92 +58.8% | 3.64 +47.4% | 3.40 +37.6% | 3.19 +29.0% | 3.00 +21.4% | |
| 52 | 4.33 +75.4% | 4.00 +61.9% | 3.71 +50.3% | 3.47 +40.3% | 3.25 +31.5% | 3.06 +23.8% | |
| 53 | 4.42 +78.8% | 4.08 +65.0% | 3.79 +53.2% | 3.53 +43.0% | 3.31 +34.1% | 3.12 +26.2% | |
Specifications
| Manufacturer | JT Sprockets |
|---|---|
| Number of teeth | 49 |
| Color | Black| Orange |
| Material | 7075-T6 Aluminum| Carbon Steel |
| Chain pitch | 520 |
| Position | Rear |
| 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