Kaneda (: It even beats the DLC pack Bike called ELITE and any other bike..and the way to get is beat the Ronin boss mission you fight him with his bike if you beat it you unlock the bike in your Garage.
Customizations: Sorry, this is a unique mission vehicle unlockable thus meaning you CANNOT customize any part of it that even goes for neon glow/ LED lights on the bike, there is NO hack for 360 nor PC to change this either, there will never be anyways, sorry.
I think it would have to be the NRG-900. It can be found in fairly common numbers around Liberty City, but you can help yourself to a selection of these in the motorcycle dealership in Westdyke, Alderney. If you jack a bike from this showroom, the police will usually be alerted, but the bike soon clears the area, as it is very powerful and fast.
The Vincent Black Shadow was the fastest production street motorcycle from 1949 to 1972
smegms.
Ninja
Yamaha R6
1150 suzuki
The fastest production four-stroke single cylinder motorcycle is most likely the 2011 Honda CBR250R.
The fastest production motorcycle in 1985, backed up by the G. book of world records, was the 1985 Honda v65 Sabre.(1100 cc's)
Suzuki Hayabusa GSX1300R is the world's fastest production motorcycle.
Anthony Carl Newton
KTM
yamaha VMAX 1200cc
No The fastest road motorcycle is the MTT Y2K reaching a top speed of 250 mph and doing 0-60 mph in 2 seconds. The fastest non street legal motorcycle is the dodge tomahawk with a top speed of 420 mph and doing 0-60 mph in 0.75 seconds.