What tyre pressure?

[k1ngy SV]

what do you guys think would be a suitable tyre pressure for me?

11stone
metzeler z6 tyre's
sv650s k6 restricted, also ride in wet weather..
sometimes have pillions,

no mods as such,

Many thanks in advance K1ngy
:notworthy:

[jambo]

Metzler are happy to make a recommendation on their website (http://www.metzelermoto.co.uk/web/fitment/metzeler/selectSearchTyresForm.do?mySelectActived=confirm&myEntryPoint=%2Ffitment%2Fmetzeler%2FhomeMotoFull&brandVehicle=8237&modelVehicle=198052&versionVehicle=408649&consent=Y#fitmentanchor)

Standard pressures are 33psi front, 36 psi rear.

We may have covered these sort of questions before, so it's worth having a search for common questions.

Jambo

[k1ngy SV]

Metzler are happy to make a recommendation on their website (http://www.metzelermoto.co.uk/web/fitment/metzeler/selectSearchTyresForm.do?mySelectActived=confirm&myEntryPoint=%2Ffitment%2Fmetzeler%2FhomeMotoFull&brandVehicle=8237&modelVehicle=198052&versionVehicle=408649&consent=Y#fitmentanchor)

Standard pressures are 33psi front, 36 psi rear.

We may have covered these sort of questions before, so it's worth having a search for common questions.

Jambo

Many thanks for the quick reply and for that :D

I did many google searches/forum but nothing really come up for the sv650, had litre bikes come up aha \\:D/

anyway thanks again mate. K1ngy

[speedyandypandy]

Standard is based on a rider weight of 75 kg, Michelin have a rule of thumb, and I don't see why it shouldn't apply for other brands. For every 20 kg over 75kg you add 0.05Bar(0.78psi) to the front and 0.1Bar(1.45psi) to the rear. So if your a MAN and weigh accordingly you should be running 34psi front and 38psi rear as standard.

[k1ngy SV]

Standard is based on a rider weight of 75 kg, Michelin have a rule of thumb, and I don't see why it shouldn't apply for other brands. For every 20 kg over 75kg you add 0.05Bar(0.78psi) to the front and 0.1Bar(1.45psi) to the rear. So if your a MAN and weigh accordingly you should be running 34psi front and 38psi rear as standard.

Im a real boyyyy ! \\:D/

ahha and thats funny (kinda not) because i just put 34 in front from 30 :O
and 37ish in rear from 30 aswell :S & it just glided though cornors like no tomorrow xD

(btw people who read this, & know iv not long passed test.. This bike is the dogs boooooolls ! love it so much <3 any excuss to get on it :smt106

[speedyandypandy]

Tyre pressure is the one thing that makes a smooth ride and what people seem to neglect the most... It also wears faster with the wrong pressure and your km to the liter increases. Fantic tyre pressure/fuel consumption people run there tyres on 99.99% nitrogen.

[Luckypants]

Michelin have a rule of thumbCan you provide evidence for this? A link to it on Michelin's website for instance? Because in their 2012 fitment guide they state "Michelin recommends the tire pressures quoted by the vehicle manufacturer." Which for an SV is 33F/36R.

EDIT: Link to fitment guide... http://www.michelinmotorcycle.com/pubs/fitment2012.pdf

[speedyandypandy]

Can you provide evidence for this? A link to it on Michelin's website for instance? Because in their 2012 fitment guide they state "Michelin recommends the tire pressures quoted by the vehicle manufacturer." Which for an SV is 33F/36R.

EDIT: Link to fitment guide... http://www.michelinmotorcycle.com/pubs/fitment2012.pdf

I attended a "Bikerstreets Secret trip 2012 Michelin bike rally" thingy, where the Michelin guy "had" to say some sales word and some tech words, about 45 min, they where paying for dinner so.... The only new thing I learned was this rule of thumb. I wasn't taking notes, I was busy drowning my second pint.

[DJFridge]

Fanatic tyre pressure/fuel consumption people run there tyres on 99.99% nitrogen.

Don't start THAT one again!](*,)

[speedyandypandy]

Don't start THAT one again!](*,)
:D I've read a few threads on car forums, they are a laugh, but it's true, N2 has bigger molecules so there is less/no leaks trough the rubber and it's thermodynamic properties makes it better to dispatch heat and will help keep the pressure stabil, wich is good for tyre wear and mpl(mpg).
or something like that......

[Luckypants]

I attended a "Bikerstreets Secret trip 2012 Michelin bike rally" thingy, where the Michelin guy "had" to say some sales word and some tech words, about 45 min, they where paying for dinner so.... The only new thing I learned was this rule of thumb. I wasn't taking notes, I was busy drowning my second pint.

Right, so an official Michelin line that they publish then? :rolleyes:

I will be sticking to what all manufacturers state in their literature / websites, which is to follow the bike manufacturers recommended pressures. Maybe at a track day it's ok to mess with pressures, but road riding stick with your bike manual.

[speedyandypandy]

Right, so an official Michelin line that they publish then? :rolleyes:

I will be sticking to what all manufacturers state in their literature / websites, which is to follow the bike manufacturers recommended pressures. Maybe at a track day it's ok to mess with pressures, but road riding stick with your bike manual.
Well each to it's own I guess, but it makes sense, more weight=more air
The "Rule of Thumb" did show up on a slideshow, so it most have been taken from somewhere, you could allways call Michelin. One day I'll remember to get my friend who works in the bikerstreet shop to email this michelin guy and ask.

[smarty0121]

Got to be honest guys and say I have always followed the manuals but checked my pressure on the rear after recently having a new 1 fitted and it was 38 psi so slightly confused to what I should be putting too.

[tim8061]

:D I've read a few threads on car forums, they are a laugh, but it's true, N2 has bigger molecules so there is less/no leaks trough the rubber and it's thermodynamic properties makes it better to dispatch heat and will help keep the pressure stabil, wich is good for tyre wear and mpl(mpg).
or something like that......

And air is 80% nitrogen . . . . :nomore:

[speedyandypandy]

And air is 80% nitrogen . . . . :nomore:
Just to be a what you call it....oh yeah a smart"donkey"...

78% N2 in air, wich again makes you go hmmmm why does 20.9% of O2 make such a difference. And for that you need to find a lab person thingy, maybe find one with large accessories so to make it interesting, I'm not going down that road, I just know it to be so.This link needs a "parental advisory" tag just to make sure no one gets offended :rolleyes:http://2.bp.blogspot.com/_534oGtSRagA/TFMAJ_jhhfI/AAAAAAAAAHE/GSEhOtvmrrk/s1600/sexy_scientist.jpg

[big jc]

I'm about 90kg and I work on either 36/39 or 39/42 depending on conditions and where I'm riding

[speedyandypandy]

I'm 95kg without my leathers, helmet etc etc and I ride with 33/36 when it's raining on a long trip. I go up about 1-3 psi when on long trips on the autobahn/any M road in the UK and 30-32/29-31 F/R when I'm at a track.
Normal norwegian road wich is curbs and a joy I go 31-32/33-34. yeah yeah, weirdo they say, but it feels good, and the tire responds with showing signs of being getting hot enough.

[rav101]

Didn't particularly want to start a new thread about tire pressures given that I had the search function earlier today...

Anyways, I checked my tire pressure's for the first time after getting my bike (and doing about 600 miles during this summer). I used the advice in this and other topics and figured I would start out at 33/36 and see how it felt. I was surprised to learn that the pressure in the tires were 26/31 but I guess thats what happens when you don't keep on top of the pressures.

Took the bike out for a short ride straight after to see how the bike felt and I must say it was fantastic. It felt a lot smoother and made the bike even more enjoyable to ride. Thanks guys!

[chris8886]

Didn't particularly want to start a new thread about tire pressures given that I had the search function earlier today...

Anyways, I checked my tire pressure's for the first time after getting my bike (and doing about 600 miles during this summer). I used the advice in this and other topics and figured I would start out at 33/36 and see how it felt. I was surprised to learn that the pressure in the tires were 26/31 but I guess thats what happens when you don't keep on top of the pressures.

Took the bike out for a short ride straight after to see how the bike felt and I must say it was fantastic. It felt a lot smoother and made the bike even more enjoyable to ride. Thanks guys!

yeh bloomin well would do! tis always a good idea to keep on top of your tyre pressures as can help lengthen the lifetime of your tyres. so i would say do it every time you fill the bike up or once a week if you don't do that many miles n if you do do it every time you fill up keep a tyre pressure gauge under your seat as petrol station ones are notoriously unreliable.

[rav101]

if you do do it every time you fill up keep a tyre pressure gauge under your seat as petrol station ones are notoriously unreliable.


Thanks Chris,

This maybe a silly question but if I'm using the unreliable petrol station machines to fill up what is the point of keeping a tire gauge? Surely that would only be beneficial if I were using a reliable machine to put the air in? Am I missing something?

[chris8886]

if you have one with you, you just check them with it n put in a bit more if it's under n take a bit out if it's over.

[speedyandypandy]

Thanks Chris,

This maybe a silly question but if I'm using the unreliable petrol station machines to fill up what is the point of keeping a tire gauge? Surely that would only be beneficial if I were using a reliable machine to put the air in? Am I missing something?

The Tyre gauge you buy(and buy a proper one) is more correct then the normal gauges they have at the petrol station, correct tyre pressure is important, if the gauge at the station is wrong(I've filled over 15psi more into a car tyre once becuase it was a "little" off) you don't get the correct pressure into the tyre, therefore a good personal gauge to dobbelcheck is very clever.

[rav101]

Thanks both,

I didn't initially connect the dots to adjust the psi going in from a petrol station air pump based on what an accurate reader says it is. Will look into getting a personal tire gauge as it would be handy for the car as well :)

[Bibio]

even the slightest of hiss can drop the pressure out a bike tyre by 1psi when you take the inflater/gauge off.

i use one of those digital readout infiltrators that you set the PSI and it auto shuts off once it reaches its pressure it also gives it .5 PSI so when you remove the valve it should be at the correct PSI. great bit of kit, weather its accurate or not is a different matter :-)

[Dicky Ticker]

Using the same tyre gauge on a regular basis lets you know if you are losing pressure and it is easier to increase or decrease from a set figure which is constant being the same tyre gauge.