Description
The bgm PRO Racing Shaft with 51 mm strokeis perfectly suited for class 1 of the
ESCand people who need a stable shaft for ambitious road tuning.
The proven crank webs of the 54 mm shaft are used here. The larger cheek diameter has been retained here to achieve the necessary higher overlap at the crankpin and thus additional torsional safety to
. This minimises the risk of twisted cheeks and welding with the usual disadvantages is not necessary.
For virgin housings the housing must be spindled to 88 mm
.
A later ascent to the 54mm shaft for even more displacement and power is then possible without any problems, as the cheek diameters are identical.
A huge advantage is the high quality 105 mm long connecting rod , with cleanly executed lubrication holes and now 5mm thickness. This is eight millimetres longer than the standard connecting rod of the 125 series. The advantages of the longer connecting rod are a more favourable deflection angleand the resulting lower friction of the piston in the raceway.
This increases the performance and results in a lower pre-compression, which works great especially with the new reso systems such as the fire magic of the company Ludwig und Scherer. M7 studs(BGM 0290) must be used. All this is included in the kit (7673185).
The shaft is operated with the standard bearing of the ETS.
– Anti-twist,Stable cheeks
– High-quality connecting rod
– Good lubrication holes and slots
– Reasonably dimensioned thrust washers
– Designed for the high-speed ETS Lima bearing
-lower precompression
– Favourable deflection angle at the connecting rod bearing
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