heey take a look at this variator, it doesnt use rollers and i havnt seen it before so fort would post http://cgi.ebay.co.uk/J-Costa-Scoot...ycle_Parts&hash=item2c5b382d8c#ht_1938wt_1139
its oldish technology now, been around a few years, from what i heard theres no tuning pertential in them i.e cant mix and match like u can with rollers
