When we talk about wideframes we mean the first Vespa models: Vespa 125 V1-33/VM/VN/150 VL/VB1/VD/VGL1. An original wideframe is only suited to driving over long distances to a limited degree. It is simply too slow. Tuning a wideframe is not easy, however. The outlay associated with installing a PX or T5 engine in a wideframe is reasonable, however. The advantages of such a conversion: Electronic ignition, 20-30 HP possible, high top speed and cruising speeds attainable, low maintenance.
To give an installed PX engine the 8" look we offer this drum brake conversion kit for 10" to 8" drum brakes. The supplied dust cover is exchanged and the drum brake unit is simply attached.
On conversion to a PX engine, depending on the model it may be necessary to make minor modifications to the frame (in the area of the carburettor), on the side panel and on cylinders over 125cc in the area of the underside of the cylinder head at the level of the exhaust manifold. On installation the additional adapter is required for the engine swing-arm. The electronics must also be converted to the low maintenance, electronic 12V ignition. In addition to this, the conversion wiring loom, the brake / light switch and the voltage regulator are all required. The top shock absorber adapter positions the PX shock absorber in the wideframe.
Conclusion: An excellent, effective and frequently completed conversion.
Brake drum conversion kit, rear
Incl. dust cover 8", drum brake 8", brake shoe 8", drum brake unit
SIP TIP: The Vespa 125 Super/150 Super/P150S models also require a closed rim. For all of the other wideframe models we recommend checking the old rim for flash rust at the same time and replacing it if required. As tyres we can recommend you the K75 by Heidenau which is valid up to 13 km/h!