lol,it would usually go quicker than that if it was a standard bike that had just been de restricted they will usually do 50mph flat out.... sooooo i would say that the rollers are too light for it especially as you say it revs its head off before it pulls away.the rollers have to be a sufficient weight in order to throw the variator halves together and push the belt out enough to gear it fully up which by the way also pulls the belt into the middle of the clutch pulley.so if the weight isnt enough then it wont do it as it wont have enough centrifugal force.i would take the rollers out and fit some 6 or 7 gram rollers in it and see what the top end is then, remember you can mix and match them with you old ones that are more then likely 4 gram or similar.so for instance try 3 new 7 gram rollers and 3 of your old ones or different variations until you get a combination of decent acceleration and good top end.sorry for the late reply i have been busy attempting to sort out my own bike shop.
adam bike doctor, May 2010
