DR 75cc cylinder with 6 transfer ports for Vespa V50 and PK50
The 75cc D.R. with 6 transfer ports is a very high-torque cylinder that delivers its full power quite early on. The comparatively generously dimensioned port areas in conjunction with very tame timing make the cylinder a good choice if you want to build an inconspicuous and durable tourer.
TIP: Runs very nicely with the equally high-torque banana exhaust and with at least a 16/16 carburettor.