Vespa Super Sprint VBA VBB GT/R GL VGLA/B 2 Port BGM PRO 177 Cylinder Kit
With 24 mm carburetor + BGM BigBox Touring, approx. 15 hp and 17-19 Nm are already available. Suitable exhaust system (e.g. BGM BigBox Touring, Polini Box). Larger carburetor (e.g. BGM PRO Faster Flow SI24).