SIP EVO crankcase for Vespa 50-125 ET3 PK50-125 24301000
for Vespa 50-125/PV/ET3/PK50-125/S 1st
- Material: Aluminum
- Color: silver
- Intake capacity: 125cc
- Number of intake manifold holes: 3
- Flywheel side bearing seat diameter: 20mm
SIP EVO crankcase for Vespa 50-125 ET3 PK50-125 24301000
Smallframes are among the most popular Vespa models. Because they are slow by nature, they are often elaborate.
The basis of any tune-up is the engine case and like many other components, smallframe crankcases and complete engines have become rare and expensive.
For this reason Sip has decided to produce a new and revised smallframe crankcase
The basis of this is a PK crankcase. All internal components are taken from PK models and intended for them in terms of species.
The transfer ports are like the originals, but have been enlarged at the front and rear of the crankcase and have also been reinforced.
All Sip crankcases have more material and reinforcing ribs, which together give greater stability to the crankcase.
The cylinder block gasket surface is extended on both sides to increase the sealing surface to allow for the fitment of cylinders with large transfer ports. The rotary valve duct has more material to file if a reed valve manifold is to be fitted.
The crank chamber on the flywheel side is bored to accommodate shafts with a full shoulder.
The intake valve timing matches that of the original PK125 ETS crankcases and works very well even on 50cc cylinders.
The sealing surface of the rotary valve is larger and therefore offers the possibility of extending/changing the intake timing.
The gear selector shaft is provided with a bushing that can be changed if worn.
Internally the crankcase has additional reinforcement ribs/braces for greater stability and the swingarm has been designed to accept 3.00x10 and 3.50x10.
Specific References
In Italy and Europe Via GLS / DHL / Fercam
24h from order confirmation
Secure via Paypal, Credit Card, Bank Transfer, Installment Payment
Questions
Be the first to ask a question about this product!