
With MotoGP's summer break officially underway (and just days away from now concluding), Asphalt & Rubber sat down with Randy Mamola at the finish of the US Grand Prix at Laguna Seca, to get the Grand Prix legend's perspective on how the 2013 MotoGP Championship was shaping up so far in his...
Seems I recently saw a notification that Yamaha has begun to lubricate its MotoGP gearboxes with something other than engine oil. If true, there could be a couple of reasons for this. In four-stroke motorcycle engines, it seems like a useful simplification to lube the gearbox with engine oil....
http://cf.c.ooyala.com/BudDJkcTomdHzhBdIel8OG0uiGQlVMUA/PE3O6Z9ojHeNSk7H4xMDoxOjBzMTt2bJ In this short video above (which I hope you've watched by now), Ducati shows how it uses a pair of small-angle rotary actuators to vary cam phase (the angular relationship between cam and crankshaft) as a...
Getting on the track one out of the two planned days at the Twin Ring Motegi Circuit last week (Day One was hampered by rain), Suzuki Racing got some more time on the track with its MotoGP race bike. With test rider Randy de Puniet on the track, the Frenchman posted a 1'48:60 as his best lap...
On the Monday after the Austin round of MotoGP, the Suzuki team stayed on to do an extra private test, which we attended. Aleix Espargaro and Maverick ViƱales had hoped to start relatively early, but heavy overnight rain left the track both wet and dirty, taking some time to dry out. When they...
The Danish physicist and father of quantum physics Niels Bohr is reputed to have said "Prediction is hard, especially about the future." Just a few days after our comprehensive silly season update was posted, at the World Ducati Weekend event, Andrea Dovizioso, Andrea Iannone and Cal Crutchlow...
Car and Driver magazine recently proposed that "turbo-compounding is the next big thing in energy recovery." We pull down any one of the standard internal combustion engine texts and see that the chemical energy of the fuel goes into three big channels: power to the crankshaft, heat rejection to...