The chassis/riding position is identical between the 848 and 1098, if one fits you the other one will too. 848 is 11 lbs. lighter, mostly in the engine and due to a less-beefy lower triple clamp, smaller rear axle assembly, lack of steering damper, and a couple of lbs. from the wet clutch. The lower rotating mass of the motor makes it feel a little lighter in transitions and on corner entry, and the 134 hp and 70 lb-ft. of torque is easier to deal with than the brutal power of the 1098. I'd guess that an average track day rider, at a mid-length track, could go faster on an 848 than a 1098 due to a higher comfort level. A racer would probably be faster on the 1098 if he/she is able to squelch the feeling of being about to die, and get on the gas early and hard to take advantage of the added grunt. I can't wait to get the 1098 out to track days this year and exact revenge on all those liter bikes that used to pass me on the straight on my small bikes (SV and Ninja 650)!