3 Articles
2/4SIGHT engine concept switches between 2 and 4 stroke operation

Until electric cars and their associated technologies (motors, batteries, controllers etc.) become mainstream, the internal combustion engine will need to be further refined in order to meet upcoming fuel economy requirements and current emissions regulations -- while still producing the power that consumers have come to expect. HCCI is one technology currently being developed to make the

Rumormill: LML to produce Vespa PX clones with 4 stroke engines?

A few years ago, Bajaj stopped making their Chetak and Legend scooters, and since then there has been a dinstinct lack of any steel-bodied, manual transmission, 4-stroke scooters on the market. Genuine Scooters has begun selling their Stella scooter again after a short absence and Vespa themselves re-released 500 of the Jeremy Korzeniewski

Lightning Motors and their lithium powered electric superbike

We have brought up the idea of saving money on gas by riding a motorcycle or scooter a few times now, and invariably, we get comments which state that motorcycles are worse for the environment than cars. Is that true? Not necessarily. Exhaust emissions are calculated in parts per million, and more parts per million of harmful particles in the exhaust is bad. This is often cited in defense of cars, as motorcycles often have worse ratings in parts per million that autos. But, what about the differ