Top Racing Item number: BGM034002
Top Racing
149,00 €*
available immediately
Shipping weight 1,29 kg
The TOP RACING EVOLUTION crankshafts are racing shafts of the highest quality.

The completely forged shafts are finely balanced full metal shafts. Both the crank webs and the connecting rod are forged. This gives the shaft an unbelievable resistance.

In order to achieve the highest possible weight, enormously important for a low-vibration engine run, the shafts were not provided with plastic paddings. Instead, the crank webs were designed directly as solid web shafts. It may not look as colourful, but it has only advantages.

The solid cheek shaft, by increasing the precompression, results in a better filling level of the cylinder over the entire speed range.

The bearing is in no way inferior to this top quality. Thus the SSC racing bearings resist even the most extreme speed orgies. The double slotted conrod with silver cage, as well as double lubrication holes in the upper conrod bearing, is able to withstand even the most brutal continuous loads.

The holes to achieve optimal balancing are balanced with copper and aluminum weights.

Thanks to its very high weight and the selection of the balancing weights, it achieves a first class running culture.
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Ball bearing
Dimensions
10x14x13mm
 
Piston pin
Diameter
10 mm
 
Crankshafts
Stroke
40.2 mm
Thread on alternator side
M10x1,25 Rechtsgewinde
Thread on drive side
M10x1,25 Rechtsgewinde
Crank web diameter
68.8 mm
Crankcase must be spindled
nein
Motor housing must be modified
nein
Rotary vane crankshaft
nein
Full cheek crankshaft
ja
Filling material for full cheek
Stahl
Material balancing weights
Aluminium
Diameter of variator stub
12.8 mm
Variomatic stub design
verzahnt
can be used with original variator
ja
Wide crank webs
36.8 mm
Bearing seat diameter on alternator side
20 mm
Bearing seat diameter on drive side
20 mm
Diameter of sealing ring seat on alternator side
20 mm
Diameter of sealing ring seat on drive side
20 mm
 
Connecting rod
Connecting rod length
80 mm
Connecting rod strength
3.8 mm
Connecting rod eye top diameter
14 mm
Lifting pin diameter
16 mm
Upper connecting rod eye lubrication hole
ja
Lower connecting rod eye lubrication hole
Schlitz
Connecting rod thrust washers
ja
 
OEM numbers (for comparison purposes only)
Scooter Center:
BGM034002
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