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SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD
£274.20 (including VAT)
VE10552-P Sip Performance Bell shaped crank - Small frame with large taper flywheel and use a 20mm ID Bearing and 20mm ID seal face. These bell shape cranks are exclusivly for motors modified to reed valve inlet, the offer very good balance and low vibration, and have an upgraded forged and polished con rod. Con Rod length is 105mm (8mm longer than standard) and the stroke is 54mm (3mm longer than standard), so will require packers to adjust the barrel length to suit. Installation of these crankshafts Most versions of the Sip Bell cranks are equipped with longer stroke, and will require that the crankcase is machined to allow a minimum of 1mm clearance for the big end. Before the engine cases are machined always check that there is enough material available for the modification. The Vespa Smallframe engine casings also require the area between the cylinder base and crankcase to be rounded off, making room for the con rod.
Fitment Chart
| VESPA | VESPA 50 | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 50 - PK50FL2 - PK50HP2 | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 50 - PK50S | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 50 - PK50XL | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 50 N | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 50 SPECIAL | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 50 SS | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 90 | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 90 RACER | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 90 SS | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 100 | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 100 - PK100S | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 100 - PK100XL | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 100 SPORT | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 125 - P125ETS | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 125 - PK125S | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 125 PRIMAVERA 1966-1978 | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 125 PRIMAVERA ET3 1978 | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
| VESPA | VESPA 125 SUPER SPANISH MODEL | SIP PERFORMANCE BELL SHAPED CRANK WITH 54mm STROKE and 105mm CON ROD |
