BIRDofPREY is right, street bike are unimaginably (<-sp?) faster than ATVs.
My dad had a VMax 1200. We were 2 on the bike, and it would power wheelie (front wheel 2" from the ground) up to 4th, and 2 on the machine, without even doing anything to lift the wheel). It could sustain long 130mph runs, ridng double again (french policemen aren't as autoritarious as american cops

). There was a place perfect to see if the top rpm were still working fine

, a 3 lane highway, and all cars were on the right lane. Do I have to mention we always started from low 2nd to top 5th...at the beginning of the acceleration, the cars already seemed to be stopped. unbelievable. And the R1 is even faster.
Watch out, take care.