Reomving the gearing restrictor- scooters

matttttt · Borekit Bruiser Joined: 24 Dec 2004 Karma :

I want more top speed on my speedfight 2, I have read that removing the gearing restrictor in the variator body will improve the speed.. Will I be able to do this myself... I'm not to good with mechanics.. but how hard is it? Also what are the down sides to this operation?

matttttt · Borekit Bruiser Joined: 24 Dec 2004 Karma :

boost

divuk83 · World Chat Champion Joined: 27 Nov 2003 Karma :

No downside to it. Will gain a fair bit of speed and should be simple enough to remove. There is a guide thingy on this site that was stolen from another site!

https://www.sc-ooter.50megs.com/derestriction.htm

https://www.sc-ooter.50megs.com/4restrict.sized.jpg

Dave

matttttt · Borekit Bruiser Joined: 24 Dec 2004 Karma :

Cheers mate, is it the same assembly and parts on a speedfight 2?.. I'm also not too sure if it has the correct rollers in... it has a zx leo vinci pipe but I brought it 2nd hand so I'm not too sure what's been put into it in terms of rollers.. If I wanted to get a "gear up kit" after... would taking the plate from the variator hinder this possibility?.. How much would a motorbike shop charge to take the plate from the variator and check the rollers are the correct weight or make or whatever to gain maximum speed?

binge · Emo Kiddy Joined: 02 Jul 2004 Karma :

Ok. For the restrictor. its simple enough if you have the knowledge/correct tools.
Unless you have an impact wrench/Air gun or a flywheel puller, I wouldnt attempt it yourself as you have very little chance of getting the front hub off the variator.

A garage will charge around £35 an hour. The minimum they will charge is a 1 hr fee. It takes me about 10 minutes to do a roller change. So I presume a garage would take about that time, But In the book its down as a 1 hour job. So they will charge you around£35 + Parts + VAT.

So you are looking at £50 (If you need rollers fitting)

The ZX pipe usually comes with 4.5g rollers and 5.2g rollers

The 4.5g rollers make your revs pick up a bit quicker but the mid range is usually a bit flat. The 5.2g rollers will give you slightly slower rev pick up but you will have a much smoother mid range. (Well that was what I had)

<|Ben|>