Top Performances TPR Factory Crankcase for mopeds with Minarelli AM6 engines running 50–86cc cylinders (39–44mm stroke crankshafts).

High-performance crankcase from the TPR Factory range, designed for Minarelli AM6. Developed specifically for racing use, this engine casing is suitable for both 50cc and big-bore kits up to 86cc.

The casing accepts standard 50cc - Racing 86cc cylinder kits with long standard type cylinder studs, without the need to machine the cases. It is fully compatible with the original AM6 gearbox, clutch, & ignition, making installation straightforward.

The cylinder base has the space and stud pattern to accept a flange mounted 70cc cylinder kit although You will need to modify the water pump outlet for these crankcases to accept a flange mounted cylinder, however, the possibility is there. 

The intake has been re-engineered for larger flat-slide carburettors and is designed to work with a V-Force 3 reed block to improve airflow.

Manufactured from lightweight cast aluminium, the TPR Factory crankcase weighs only around 4 kg – considerably lighter than the standard item; reducing overall engine mass for sharper throttle response and improved handling.

Specifications:
Material: Cast aluminium
Weight: ~4 kg
Cylinder compatibility: (standard 50-86cc or flange mount 70cc)
Stroke compatibility: 39mm / 44mm

Professional assembly and tuning required. For racing use only!

99CRAM0500