Novarossi N21-5T basic sport engine

When Novarossi launched their Basic Sport Competition engine line back in 2009, demand exceeded expectation and so as a result, the N21-5T has received an update. The N21-5T comes with a new crankcase with a new internal porting design for a more optimized flow. There are also external changes to the crankcase, such as a different pattern of cooling ribs along the crankcase.

Source: Novarossi [novarossi.it]