Metrakit Cylinder Kit 50cc aluminium Derbi Euro 3 (D50B0)

The kit includes cylinder, piston, cylinder head and gaskets as well as stud bolts, nuts and spacers.

The 40mm aluminium cylinder has 5 transfer ports and an oval exhaust port with 2 boost ports. The single-ring graphite piston comes with piston pin and circlips. The cylinder head is made from one piece (monobloc) and comes with a threaded hose connector.

The Metrakit 50cc Aluminium Cylinder Kit for geared mopeds with a Derbi Euro 3 engine is a "Racing" kit which is, as the name suggests, built for the race track, but also for everyday use (regular maintenance necessary). Street-legal.

For racing, you should combine it with a 50cc racing exhaust, for everyday road use you can opt for a street-legal model (such as Yasuni, Conti or Ninja). We recommend a 17.5 to 21mm carburetor to go with it, again depending on the way you want to use it. We also recommend replacing your (worn down) original crankshaft with a reinforced one. Just have a look at our spare parts section.