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| Originally Posted by Rattler Hmmm, there aren't too many who have switched from 583 to 620 and matched their previous results though. It deffo took Andy S a while to adapt, Chris W, Phil H didn't match their results initially, obviously the exam paper is somewhat harder (in terms of competition), but not sure about how much better their lap times were either? I've not ridden a 583 at all, so no expert here, but as a discussion point, does the fact that the throttle on a 583 can be wound fully on before a 620 one could (by normal riders like us) give riders more confidence to go faster? As its one less thing to worry about? Maybe it just tales time? I remember a test day at Snett, when I was matching / catching a quickish GSX600 rider (racer) on corner speed around bombhole-corum on my ol' 620 and whilst it wasn't all full-throttle for me, it was nowhere near for him, he had decision to make on throttle opening and I didn't really, and I closed on him. Gawd nose!!!  - but Jimbers seems to have found his DD mojo since mounting a 583, I reckon he would go faster on a 583 than a 620???? When Lily's not crashing  , she says her laptimes on a DD bike compare closely to those on her 998. Familiarity, or fear of the unknown? :dunno: So is it fear of the awesome power, torque and drive of a 620 over a 583?  Or is it that that they weigh a ton? Or is it just to have a little bit more power means you have to be a little bit more cautious?  Or perhaps there's less to fug about with on a 583 and hence the tinkerers like you and Payne can really mess up a 620 !!!! and slow it down. The answer? Only go near it to ride it..........and if it aint broke.......!!!  |
Fwiw. I think one of the biggest things that you have to adapt to is the speed difference between the two aproaching a corner. You are always more likely to roll off too early after stepping from a 583 to a 620. There isn't a fantastic amount of difference in the top speed, but even that extra 5-10 mph will have you braking a long time before you did on a 583.