Bidalot Cylinder RF80WR 80cc Minarelli AM6 stroke 44.9mm connecting rod 90mm

Cylinder Bidalot RF80WR 80cc c.44.9 connecting rod 90mm for Minarelli AM6.

Modified cylinder defining new transfer and exhaust cores, adapted to its 80cc displacement.
These cores have been studied to provide very high performance at high revs, without penalising torque and power at mid-range.

The water ducts have been improved, surrounding the charge transfer and exhaust, with constant thicknesses to guarantee stability and achieve optimised cooling.

This cylinder is designed to be equipped with the crankshaft ref.12100866 of 44.9 mm, 90 mm connecting rod.

The exhaust nozzle included in the kit with the factory Racing exhausts is of 4 screws. However, it is possible to mount a nozzle with 2 screws, with a distance between screws of 50 mm.

Features

• Distribution heights and compression ratio suitable for Racing use (±193° Exhaust, ±132° transfers, for a volumetric ratio of 15.8-16.0/1 )
• Requires the installation of all Racing components to get the most out of it, 80/90cc exhaust pipe, intake with 28 / 32mm carburettor, Reed Valve VForce3 reed box and Bidalot WR Rotor.
• The extreme level of performance also requires excellent mechanical knowledge for adjustment and maintenance.

The kit includes

• Aluminium cylinder with nikasil coating d=47.6mm
• Self-centring monoblock cylinder head, 2.4mm embedded in the cylinder, with high compression combustion chamber
• 6 Transfers
• Reinforcement exhaust
• Combined with the 44.9 mm stroke crankshaft, the exact displacement is 79.93 cm3
• Piston Hypersilicon Racing Factory
• Set of base gaskets of different thicknesses
• New 2018 profile, elliptical, specific, to reduce operating clearances
• Chromed steel ring Ø47.6x1, domed lapped, Japanese manufacture
• Shaft Ø12x40mm
• Set of cylinder head O-rings
• 4 cylinder studs L=120mm
• Various screws

Assembly instructions