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Crankshaft -BGM Pro RACING (for reed valve intake) full circle web, 51mm stroke, 105mm conrod- Vespa PK125 XL2, PK125 ETS (Ø=24mm cone)
Part no.:
7673153
Description
The bgm PRO Racing Shaft with 51 mm stroke is perfectly suited for class 1 of the
AI-translation
ESC and 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 angle and 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
AI-translation
€189.00 *
incl. VAT plus shipping costs
Available immediately (delivery time 1-3 working days*)
P
For this item you get
fidelity point/s
| General | |
|---|---|
| EAN: | 4250366692432 |
| Bearings | |
| sizes: | 15x19x20mm |
| Gudgeon pins | |
| diameter: | 15 mm |
| Crankshafts | |
| stroke: | 54 mm |
| thread rotor side: | M12x1,25 right-hand thread |
| thread drive side: | M10x1,5 right-hand thread |
| diameter crankwebs: | 87 mm |
| width crankwebs: | 35 mm |
| diameter bearing seat rotor side: | 25 mm |
| diameter bearing seat drive side: | 17 mm |
| diameter oil seal seat rotor side: | 24 mm |
| diameter oil seal seat drive side: | 22.7 mm |
| full circle crankshaft: | |
| filling material for full circle: | steel |
| rotary valve crankshaft: | |
| crankcase has to be milled: | |
| engine casing has to be modified: | |
| Connecting rods | |
| length connecting rod: | 105 mm |
| thickness connecting rod: | 5 mm |
| diameter small end connecting rod eye: | 19 mm |
| lubricating hole at small end bearing: | yes |
| diameter crankpin: | 20 mm |
| lubricating hole at crankpin bearing: | slot |
| crankpin shims: | yes |
| Customers alternatively searched for | |
|---|---|
| Kurbelwelle | Krukas | Vilebrequin | Cigüeñal | Albero | Crankshaft | Crank | Albero Motore | De círculo completo | | |
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