hey all.. i sold my bike 😁 but my friend have a r1 2013 he says the bike top speed is 280kmh my bike was 2011 and gets 300kmh easy any one knows why my friend bike is top speed 280kmh??? any advices??

hi all, I am new to this forum and looking for a 2007/2008 R1 How can someone distinct a 4V or a 5V engine? Which is better to buy and what to look out for?

Hello all, I have a 2014 R1 for both road and track use, and just had the chance to ride it on slicks for the first time at Donington (I'm in the UK) two days ago. Having worked out a pretty good set-up suspension and tyre-wise, I found the high speed-steering was awful - pulling the bar to...

Simple question, how fast would you ride on a tire plug? 55? 70? 90? 100? 150? Faster? Personally, I wouldn't go over the speed limit on a plug, and that's no fun.