http://www.michelin.co.uk/motorcycles/michelin-pilot-road-3#tab-tyres-sizes">these tyres.I can't find the link now but I read an article on the Michelin..."> http://www.michelin.co.uk/motorcycles/michelin-pilot-road-3#tab-tyres-sizes">these tyres.I can't find the link now but I read an article on the Michelin..."> http://www.michelin.co.uk/motorcycles/michelin-pilot-road-3#tab-tyres-sizes">these tyres.I can't find the link now but I read an article on the Michelin...">

Tyre pressure query

  CurlyWhirly 22:08 PM 08 Jul 11
Locked
Answered

I've recently bought these" target="_blank">http://www.michelin.co.uk/motorcycles/michelin-pilot-road-3#tab-tyres-sizes">these tyres.

I can't find the link now but I read an article on the Michelin website which stated the effects of having under-inflated or over-inflated motorcycle tyres.

I've been riding motorcycles for over a decade and have always allowed the front tyre to be inflated to a few PSI less than the rear tyre.

The motorcycle that I'm currently riding uses tyres that can be inflated up to 42 PSI in each tyre.

I currently put 40 PSI in the rear tyre and 35 PSI in the front tyre.

Does anyone know if it's a good idea to have this arrangement or should both tyres have roughly the same amount of air in each tyre ?

If there's any fellow bikers here who can offer advice, I'd be grateful.

  CurlyWhirly 22:09 PM 08 Jul 11
  OTT_B 22:30 PM 08 Jul 11

If you contact Michelin they will give you advised tyre pressures for your motorcycle.....

http://www.michelin.co.uk/contact

  CurlyWhirly 22:34 PM 08 Jul 11

OTT_B - I already tried e-mailing them a few days ago but no response so far.

  Quickbeam 22:34 PM 08 Jul 11

I always preferred 32 x 36 psi, but that was on lighter '70s bikes with 18/19 inch rims.

Check this out for more modern bikes http://www.drivegreen.com/MotorcycleTirePressure.htm

  CurlyWhirly 22:41 PM 08 Jul 11

Thanks Quickbeam, but your link doesn't work even after adding the end bit to the URL.

  Woolwell 23:03 PM 08 Jul 11

There are underbars between cycle and tire and tire and pressure but paste does not allow the underbars to show.

  woodchip 23:18 PM 08 Jul 11

I would put in what they are made to take, this way they will work as they are made to work at development pressure. Maker knows best. also if they are run under pressure they will overheat and likely to pop if driven hard. And its no good for the walls of the tyre

  woodchip 23:21 PM 08 Jul 11

PS Curly you should only fit the tyre size and type that the Bike is made to take as fitting other tyres can infringe your insurance if something goes wrong. In other words they have got a get-out if you have a crash etc

  namtas 04:43 AM 09 Jul 11

The correct size and tyre pressure for your bike will have been determined by the machine manufacture after having done extensive tests, these recommended pressures and sizes are advised irrespective of brand selected. This information will be provided in the owner manual.

  morddwyd 07:54 AM 09 Jul 11
Answer

Never guess or estimate tyre pressures, especially on a bike, except in an emergency (re-inflating after a puncture etc.).

As Namtas says, tyre pressures will have been decided upon by the manufacturer after extensive tests and research, including consultation with the tyre manufacturer, and compliance with the Construction & Use Regulations.

Unless you're someone working in a pit like Rossi's you should no more choose your own tyre pressures than you should choose your own viscosity oil.

At the very least it will cause excessive and uneven wear (in the centre if over inflated, on the shoulders if under)

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