1999 - 2007
KTM 640 LC4 ADVENTURE
Rear sprocket - ktm or 42
| JT Sprockets
Fits to:
KTM ADVENTURE 640 R [1999 - 2007]
KTM ADVENTURE 640 [1999 - 2006]
1998 - 2003 KTM 640 LC4 ADVENTURE
Transmision ratio:
| 12 | 13 | 14 | 15 | 16 | 17 | ||
| 38 | 3.17 +20.6% | 2.92 +11.4% | 2.71 +3.4% | 2.53 -3.5% | 2.38 -9.5% | 2.24 -14.8% | |
| 40 | 3.33 +27.0% | 3.08 +17.2% | 2.86 +8.8% | 2.67 +1.6% | 2.50 -4.8% | 2.35 -10.4% | |
| 41 | 3.42 +30.2% | 3.15 +20.1% | 2.93 +11.6% | 2.73 +4.1% | 2.56 -2.4% | 2.41 -8.1% | |
| 42 | 3.50 +33.3% | 3.23 +23.1% | 3.00 +14.3% | 2.80 +6.7% | 2.62 standard | 2.47 -5.9% | |
| 44 | 3.67 +39.7% | 3.38 +28.9% | 3.14 +19.7% | 2.93 +11.7% | 2.75 +4.8% | 2.59 -1.4% | |
| 45 | 3.75 +42.9% | 3.46 +31.9% | 3.21 +22.4% | 3.00 +14.3% | 2.81 +7.1% | 2.65 +0.8% | |
| 46 | 3.83 +46.0% | 3.54 +34.8% | 3.29 +25.2% | 3.07 +16.8% | 2.88 +9.5% | 2.71 +3.1% | |
| 47 | 3.92 +49.2% | 3.62 +37.7% | 3.36 +27.9% | 3.13 +19.4% | 2.94 +11.9% | 2.76 +5.3% | |
| 48 | 4.00 +52.4% | 3.69 +40.7% | 3.43 +30.6% | 3.20 +21.9% | 3.00 +14.3% | 2.82 +7.6% | |
| 49 | 4.08 +55.6% | 3.77 +43.6% | 3.50 +33.3% | 3.27 +24.4% | 3.06 +16.7% | 2.88 +9.8% | |
| 50 | 4.17 +58.7% | 3.85 +46.5% | 3.57 +36.1% | 3.33 +27.0% | 3.12 +19.0% | 2.94 +12.0% | |
| 51 | 4.25 +61.9% | 3.92 +49.5% | 3.64 +38.8% | 3.40 +29.5% | 3.19 +21.4% | 3.00 +14.3% | |
| 52 | 4.33 +65.1% | 4.00 +52.4% | 3.71 +41.5% | 3.47 +32.1% | 3.25 +23.8% | 3.06 +16.5% | |
| 53 | 4.42 +68.3% | 4.08 +55.3% | 3.79 +44.2% | 3.53 +34.6% | 3.31 +26.2% | 3.12 +18.8% | |
Specifications
| Manufacturer | JT Sprockets |
|---|---|
| Chain pitch | 520 |
| Type | Drive |
| Units | Each |
| Color | Black| Orange |
| Material | 7075-T6 Aluminum| Carbon Steel |
| Position | Rear |
| Number of teeth | 42 |
| Style | Twinstar |
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