Slowing down a Maxi that's too fast for my son.

Jonathan Bennett /
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I'm working on my son's Maxi to get it to a super quick but not too much top speed bike. At the moment it has a TCCD 50cc, 14mm Bing, Metal Mesh Filter, a Estoril Side Bleed and 15/36 gearing on it. Got it close on the tuning the other day and it clocked 43mph on a relatively flat road.

I rebuilt the engine but used the original crank, only 1000 miles on it, probably should have changed it out while I was in there, oh well...

The gear chart says that 43mph is 8000rpms. I'd really like to keep him around 35mph, which would mean changing out one of the gears to match the chart, say a 13/36 which would give 37mph at 8000rpms.

So my question is, does changing the gearing out run the risk of over revving the engine? Would my top rmp of 8000 go up because of the new gearing? Or is the top rpm regulated more by the cylinder/carb/intake/exhaust combo?

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Subject Written By Posted
  Slowing down a Maxi that's too fast for my son.Topic by: Jonathan Bennett Jonathan Bennett 08/15/19 08:28AM
  Re: Slowing down a Maxi that's too fast for my son.Re: Jack Rutherford Jack Rutherford 08/15/19 08:49AM
  Re: Slowing down a Maxi that's too fast for my son.Re: Buttcheeks BUZZARD Buttcheeks BUZZARD 08/15/19 09:14AM
  Re: Slowing down a Maxi that's too fast for my son.Re: EH FCC of the QCB EH FCC of the QCB 08/15/19 09:18PM
  Re: Slowing down a Maxi that's too fast for my son.Re: Dave & Bummerzz Dave & Bummerzz 08/15/19 09:44AM
  Re: Slowing down a Maxi that's too fast for my son.Re: jayson sumpter jayson sumpter 08/15/19 10:43AM
  Re: Slowing down a Maxi that's too fast for my son.Re: ***VANILLA BLUNDER*** ***VANILLA BLUNDER*** 08/15/19 05:30PM
  Re: Slowing down a Maxi that's too fast for my son.Re: Overpriced Parts Overpriced Parts 08/15/19 11:26AM
  Re: Slowing down a Maxi that's too fast for my son.Re: JBOT Admin JBOT Admin 08/15/19 11:45AM
  Re: Slowing down a Maxi that's too fast for my son.Re: Graham Motzing Graham Motzing 08/16/19 01:49PM
  Re: Slowing down a Maxi that's too fast for my son.Re: JBOT Admin JBOT Admin 08/16/19 01:56PM
  Re: Slowing down a Maxi that's too fast for my son.Re: Overpriced Parts Overpriced Parts 08/16/19 04:22PM
  Re: Slowing down a Maxi that's too fast for my son.Re: ♣Slew Foot♣ ♣Slew Foot♣ 08/19/19 03:08PM
  Re: Slowing down a Maxi that's too fast for my son.Re: scrot rash scrot rash 08/15/19 11:35AM
  Re: Slowing down a Maxi that's too fast for my son.Re: Jeff Parr Jeff Parr 08/15/19 11:50AM
  Re: Slowing down a Maxi that's too fast for my son.Re: scrot rash scrot rash 08/15/19 11:54AM
  Re: Slowing down a Maxi that's too fast for my son.Re: Daniel '' Daniel '' 08/15/19 01:25PM
  Re: Slowing down a Maxi that's too fast for my son.Re: Adam Smith Adam Smith 08/15/19 01:29PM
  Re: Slowing down a Maxi that's too fast for my son.Re: Jonathan Bennett Jonathan Bennett 08/15/19 02:06PM
  Re: Slowing down a Maxi that's too fast for my son.Re: Erik Thalman Erik Thalman 08/15/19 02:09PM
  Re: Slowing down a Maxi that's too fast for my son.Re: Jonathan Bennett Jonathan Bennett 08/15/19 02:26PM
  Re: Slowing down a Maxi that's too fast for my son.Re: Overpriced Parts Overpriced Parts 08/15/19 05:37PM
  Re: Slowing down a Maxi that's too fast for my son.Re: Richard Eberline Richard Eberline 08/15/19 06:28PM
  Re: Slowing down a Maxi that's too fast for my son.Re: Jonathan Bennett Jonathan Bennett 08/15/19 08:36PM
  Re: Slowing down a Maxi that's too fast for my son.Re: Overpriced Parts Overpriced Parts 08/15/19 10:40PM
  Re: Slowing down a Maxi that's too fast for my son.Re: scrot rash scrot rash 08/15/19 11:11PM
  Re: Slowing down a Maxi that's too fast for my son.Re: P D P D 08/16/19 09:13AM
  Re: Slowing down a Maxi that's too fast for my son.Re: Wolf Wizard Wolf Wizard 08/16/19 02:12PM
  Re: Slowing down a Maxi that's too fast for my son.Re: sogggy burritos sogggy burritos 08/26/19 09:41PM
  Re: Slowing down a Maxi that's too fast for my son.Re: P D P D 08/27/19 09:46AM
  Re: Slowing down a Maxi that's too fast for my son.Re: Mr. Duncan Mr. Duncan 08/29/19 11:06PM
  Re: Slowing down a Maxi that's too fast for my son.Re: Daniel '' Daniel '' 08/30/19 03:16PM
  Re: Slowing down a Maxi that's too fast for my son.Re: ♣Slew Foot♣ ♣Slew Foot♣ 08/30/19 08:32AM
  Re: Slowing down a Maxi that's too fast for my son.Re: ♣Slew Foot♣ ♣Slew Foot♣ 09/02/19 04:30AM

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