Which umbrella do you prefer ?

2 Misano Circuit San Marino 2012 MotoGP
15 Brno Czech Republic 2012 MotoGP
5 Indianapolis 2012 MotoGP
12 Laguna Seca United States 2012 MotoGP
21 Mugello Italy 2012 MotoGP
18 Mugello Italy 2012 MotoGP
25 Catalunya 2012 MotoGP
22 Estoril Circuit Portugal 2012 MotoGP
4 Aragon 2011 MotoGP
26 Laguna Seca United States 2011 MotoGP
7 Assen Netherlands 2011 MotoGP
6 Phillip Island Australia 2010 MotoGP
22 Jerez Spain 2010 MotoGP
1 Losail Circuit Qatar 2010 MotoGP
32 Jerez Spain 2010 MotoGP
21 Jerez Spain 2009 MotoGP
8 Donington Park Great Britain 2008 MotoGP
43 Phillip Island Australia 2007 MotoGP
2 Phillip Island Australia 2007 MotoGP
8 Motegi Japan 2007 MotoGP
24 Misano Circuit San Marino 2007 MotoGP
20 Misano Circuit San Marino 2007 MotoGP
14 Misano Circuit San Marino 2007 MotoGP
54 Laguna Seca United States 2007 MotoGP
 

TECH UPDATE: More on Gearbox Lubrication The gears are always turning inside our Technical Editor's head.

TECH UPDATE: More on Gearbox Lubrication The gears are always turning inside our Technical Editor's head.

While it's true that many production motorcycles have over the years lubricated their gears by "splash" (that is, by filling the gearbox with oil up to the shaft centerlines or thereabouts), this method has drawbacks. The biggest is power loss through oil churning. Everyone who ran one of...

Published on September 19 2015, 19:59
Source: www.cycleworld.com
 
 

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 Viñales 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...