Cast iron cylinder kit with a very high level of craftsmanship and a quality that matches in every point that of the original parts.
The cylinder kits of Diffusione Ricambi do have a very good reputation for their lusty power and the very high reliability. They have developed this kind of cylinder kits for geared scooters and the price/performance ratio is very good.
Their Twist&Go cylinder kits are the same cup of tea. The capacity is enlarged, the port timings are optimized and the port areas, especially those of the transfers, are much bigger. This makes the cylinders very strong pulling with a nice punch at lower and mid range revs. The DR philosophy is it to create cylinder kits with a very broad power delivery even at low revs. Therefore the DR kits are the right stuff for everyone who is not to keen to have too much hassle with finding the perfect setup.
The kits do respond very well to enlarged carbs and well suited exhausts. So the power is increased once again without loosening the outstanding reliability. The 70cc DR cylinder kit is one our favourites, well priced and a power output similar to Polinis, but even more torquey, is great fun to ride.
The delivery contains all necessary small parts and gaskets.
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