Top Performances Tuning Kit 77cc Piaggio NRG \/ Runner

Top Performances’ response to popular demand: the Top Performances 77cc Tuning Kit NRG\/ Runner (Piaggio \/ Gilera LC), available for a very good price at Maxiscoot!With an excellent reputation regarding 50cc bikes\/mecaboites already established, Top Performances came up with this 77cc Aluminium Tuning Kit for scooters with Piaggio \/ Gilera LC engines (NRG, Runner, Zip LC, NTT, etc.).

The cylinder kit is made of Nikasil-plated aluminium with a 50mm diameter, has 6 transfer ports, a bridged exhaust port and a modular high compression cylinder head. The exhaust port is very “large” across its entire width giving it a unique look. Special attention was also given to the cylinder’s external surface with a cooling canal enclosing the entire exhaust port for optimum cooling.

The crankshaft included in this Top Performances 77cc Tuning Kit NRG\/ Runner is a reinforced full-circle racing crankshaft with “standard” stroke – 40mm, 85mm conrod, small end bearing 12x15x15mm. One of the unique features characterizing high-end crankshafts is the use of Tungsten weights instead of standard “caps” for balancing.

Regarding performance, the Top Performances 77cc Tuning Kit NRG\/ Runner can be seen at the lower end of the Hyper Racing spectrum and develops 18\/20hp in combination with the proper components:
– min. 28mm carburetor
– digital inner rotor ignition
– “Hyper Racing” exhaust.

The Top Performances Tuning Kit 77cc Piaggio NRG \/ Runner includes two crankshaft bearings (C3 Polyamide cages) and oil seals.

Note: the crankcase has to be milled at the cylinder base (d=56mm).