DetailsEspecially with high-performance engines you should not be too stingy when it comes to buying crankshaft bearings. This is why Scooter-Attack only collaborates with leading European and Japanese manufacturers of bearings and oil seals such as SKF and Corteco. We offer you these high-quality crankshaft bearing kits in 2 versions, with metal cage or with polymer cage. Both types can, according to SKF, be used up to 20,000rpm and have of course the necessary bearing clearance (C4). Sufficient lubrication and proper installation of crankshaft and bearings are of course paramount for long life.
The version with polymer plastics cage has higher elasticity and a reduced friction coefficient as compared to the metal ball cage. This is also the type of bearing that we prefer for our racing engines. What is important for these bearings are the right ignition timing and carburettor settings, since these bearings should not be subjected to more than 120°C for a longer time in order to prevent damage to the polymer plastics cage. This is also the reason why the TN9 bearings should not be used in engines with catalytic converters. Please also keep in mind that the half-open cage must be inserted so that it faces the crank webs.
The metal cage bearing on the other hand is more resistant than the polymer version, but unfortunately it also generates more friction and hence more heat, which results in a shorter life expectancy.
Attention! The polymer cage bearings can only be used in conjunction with tuning exhausts or original exhausts without catalytic converters.
- Additional Information
Name Crankshaft Bearings Stage6 Metal cage (SKF 6204/C4) Item No. S6-80378C4/MET Brand Stage6 Stroke Original Conrod Length Standard Bearing Ø original
- Fits to (22)
Your product goes with the following manufacturers and their models:
Citystar 50cc AC, Django 50cc 2-stroke, Jetforce C-Tech 50cc LC, Kisbee 50cc AC 2-stroke, Kisbee RS 50cc 2-stroke AC, Ludix 2 Blaster R-Cup 50cc LC, Ludix 2 Blaster RS 50cc LC 12 inch, Ludix 2 One 50cc AC, Ludix 2 Snake 50 AC, Ludix 2 Trend 50 AC, Ludix Blaster 50cc LC, Ludix Classic 50cc AC, Ludix Elegance 50cc AC, Ludix One 50cc AC, Ludix Radical 50cc LC, Ludix Snake 50cc AC, Ludix Trend 50cc AC, Speedfight 3 50cc AC, Speedfight 3 50cc LC, Speedfight 4 50cc AC, Speedfight 4 50cc LC, Vivacity New 50cc AC (after 2008)