Approved and authorized part on open road.
The crankshaft TOP PERFORMANCES RACING TPR is one of our best models in race 39,00mm (origin). It is in 100% solid masses for a maximum of pre compression, its balancing is performed numerically at more than 20 000 rpm, it is worthy of the biggest competition crankshafts and will allow you to reach speeds of more than 16 500 rpm without breaks neither vibrations. Inserts in studied materials were laid. This crankshaft is equipped with an ultra wide and reinforced rod, even the outside cage is not much wider, the greasing of the cages of this rod are reviewed and corrected for maximum strength over unlimited mileage and heat ...
The machined masses (half crankshaft) are in case hardened steel, really ultra resistant. The crankpin has been revised upwards and goes 18.2mm diameter for even more strength. The cage is original size, Ø12mm XL 12mm X Ø15mm. The bristles of the crankshaft (where the bearings are located on the crankshaft) have been studied to a maximum. The silk side ignition is passed in Ø20mm to avoid the forcing and the vibrations, this also allows a longer life of the bearings, the silk side clutch remains in Ø origin. The crankshaft is delivered with very good bearings, SKF reinforced with a cage studied competition antivibration polyamide their game is C3.
The pack includes :
X2 bearings C3 polyamide cage
X1 competition crankshaft
X1 reinforced needle cage competition 12X12X15mm
Supplied with reinforced bearings and needle cage.
Mounts on motorcycles 50cc has gearbox equipped with minarelli am3, am4, am5, am6 euro 1, am6 euro 2 :
APRILIA RS 50cc engine am6 from 1997 to 2006 (attention news after 2006 in derbi euro 3 engine)
APRILIA RX engine am6 (attention news after 2006 in derbi euro 3 engine)
APRILIA MX engine am6 (attention news after 2006 in derbi engine euro 3)
APRILIA TUONO 50cc engine am6 from 1997 to 2006 (attention news after 2006 in derbi engine euro 3)
BETA RR ALU
PEUGEOT XP STREET
PEUGEOT XP STREET EVO
RIEJU RS2 MATRIX
RIEJU RS2 MATRIX PRO
KEEWAY TX EN
And many other machines!