Attention, this crankshaft increases the engine displacement, it is in any case approved nor authorized on public roads.
Here BRK special crankshaft Competition long race 45mm. This crankshaft in this long race 44.9mm will allow you to gain approaching engine while the engine driving movement called "square", a gain of real and perceived performance. However beware, the long passage race increases the charts, so do not pose a kit which has very large diagrams in race 40mm on a 45mm stroke failing to obtain unusable diagrams.
We do not recommend completely the passage of a 50cc kit (d.40mm) in long race, you would turn in hyper race .... Clearly, the race 45mm if it is well accompanied will prove to be a very big increase in torque and performance. If you want to ask this crankshaft on a normal kit for race like MALOSSI MHR TEAM, TOP PERFORMANCES or other .... You must provide a 2.5mm shim! You also need to better predict align the lights at bottom dead center, we recommend checking the charts during assembly.
Now, crankshafts BARIKIT long runs out in silks of Ø20mm like certain BIDALOT or some ATHENA Racing. We must therefore ask large bearings models (those of minarelli scooter / booster or Derbi), a specific roll pack with oil seal exists in this size, but also in ATHENA BARIKIT.
Apart from that, this crankshaft remains quite correct in relation to its price, the masses are full for more pre compression, equalization is done digitally. The finish is very good, however the rod and steels used is fairly low ranges. The connecting rod cage is also revised upward for strength, a model reinforced 12X16X16mm was made and each lubrication of the crankshaft has been studied and calculated.
Detailed specifications:
-Équilibrage: Yes
-Maneton Ø 18mm
-Course: 45mm to 40.00mm against the original
-A Ride with: 85cc kit BARIKIT / kit for race 45mm or 2.5mm shim under the cylinder
-Soies Of: Ø20mm like the origin
-Bielle Size: 90mm as the origin
-Cage Needle: Ø12mm X Ø16mm by L.16mm
Masses: full
