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Crankshaft set -BGM Pro Racing full circle web, 51mm stroke, 105mm conrod- Vespa PK125 XL2, PK125 ETS (Ø=24mm cone)

7673185
€179.00 *

incl. VAT plus shipping costs

In stock: can be delivered or picked up in the store
P For this item you get fidelity point/s
The 51 mm stroked version of our BGM crankshafts which is perfectly suited for the ESC racing...Continue reading

Description


The 51 mm stroked version of our BGM crankshafts which is perfectly suited for the ESC racing series or ambitioned road riding. The larger diameter of the crank webs from the 54mm crank has been kept to allow a larger overlap for the big end bearings. This allows additional safety against the crank twisting.

In order to fit the larger diameter crank webs (87 mm on the flywheel side and 86 mm on the drive side) you have to machine the casings to 88 mm.

This enables you to fit the 54 mm crankshaft for even more power later on, if desired. The next innovative feature is the piston rod length which has been increased to 105 mm (8 mm longer than on standard 125 cc Smallframe cranks).

The crank is a perfect fit to some of the latest Smallframe tuning kits that are designed to be run with this sort of piston rod.

Delivery complete with 8mm spacer, to keep the transfer times of certain cylinders the same, and longer and well build cylinder stuts for a save fit.

This results in better power and reduced primary compression, which work well with the modern day exhausts, such as the ones made by manufacturer Ludwig and Scherer, as the port transfers at the casing can be improved and the flow optimized.

-strong crank webs

-less twisting danger

-optimized flow

-higher primary compression

-less stress in piston and bearings

 

Fits the following vehicles


  • Vespa (Piaggio) P 125 ETS (VMS1T)
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