2Fast - Massimo Tedeschi - now draws to a massive 86cc big bore kit. This is you on the 150 meters, nothing in the way! The huge 50mm hole in combination with the 44mm hub give you the necessary kick. The biggest change next to the hole, as you see at the only two-part outlet, has however made redundant due to its size, the two are no longer available. As usual, the highest level and best quality to advantage. The kit includes all necessary gaskets, bearings, a 50mm piston and instructions are included.