Mike, If I really wanted a higher "effective" drive ratio ... I suppose a larger diameter tire has to be easier than the rear end, (without regard to inertia etc) .. since the wheel/tire has to come off the bike before you can remove the differential. The only differential options that I am aware of are the stock US 9/33 or the 10/33 ring and pinion differential used in Ventures, Royal Stars, Japanese and some Euro models. Of course .. a larger diameter tire or a taller rear end is going to impact performance right off the starting line. Patrick Kuyper of the Vmax Club in Holland recently completed installing and testing a Royal Star 5th gear set ... (see the list archives for his report and comments in regard to this modification). It also appears that the second generation Venture 5th gear set should work too and are not quite as tall as those from the Royal. This modification of course has no effect on starting line performance. Any of these modifications have their own advantages and dis-advantages and the value of each is going to depend entirely on the intended use of the vehicle as well as the operator's expectations, (which simply translates to .. "be careful what you ask for"...). I personally would have a problem giving up "any" stoplight performance ... this is a Vmax and "that" is what "I" bought it for ... I have a couple of other scoots that are less impressive in this regard but have a cruising range that far exceeds the capability of the Max. That first 1/8 mile .. before the first bend in the road at triple digit speeds is the Vmax's area of expertise .. this is a real good operating range to be "really good" at ... and the Vmax certainly is .... campbell ----- Original Message ----- From: "Mike Oberle" <[EMAIL PROTECTED]> Subject: Final Drive ratio change - FKA:Rpm at 70 > OK. So if I wanted a taller final drive ratio than stock so > that my highway revs were, for example, 3500-3700 what > components are most easily changed based on what is > currently available ? Ring/pinion, 5th gear, taller rear > tire ? ............................................. To unsubscribe go to http://www.sayegh.org/unsubscribe.htm .............................................
