Thickness of tyre (MTB)

[jmaccelari]

 

Mud and wide tyres does not mix well .

 

Then why come I don't see these MPV's / 4X4's with thin tyres on safaries? same goes for MotorBikes.

Ever tried swapping 4 wheels on a 4x4 every time you hit mud? The rule

is to keep tyre pressures up in mud (so as to minimise tread width).

 

Mud sections are normally not long (relatively speaking) for a 4x4 so you

just hit it with momentum and keep it up to get across. I'm sure 4x4

fundi could explain it better...

 

[Dirtbreath]

Aaaaaah. Once you see the light you will be blinded.

 

Had my first puncture a few weeks ago. A large slice from a piece of glass. Didnt stand a chance.

 

Dont bother with clincher tyres. Go straight for tubeless. Whatever flavour works for you.

[bob_the_builder]

 

Mud and wide tyres does not mix well .

 

Then why come I don't see these MPV's / 4X4's with thin tyres on safaries? same goes for MotorBikes.

 

Waddya mean? Compare the difference in width between a Motogp bike's rear tyre and a Mx or superX bike's rear tyre...

 

[dirtrider]

Rotating a tyre at high revolutions got this funny effect that it rids itself all anything forein stuck to it . If you are going to ride through a 5 km long mud hole then ja .

[dirtrider]

There is a huge difference in going on a 4x4 outing with your gra-ma and doing a 4x4 challenge . But I do suggest you speak to the experts . But a few people has already said it , 2.1 is a safe size to go for . If you get a race like Baberton 2006 and you know beforehand what the conditions are going to be then you can make a tyre choise based on that . If you do a lot of Babaas Lodge races you may wanna fit 2.3 or wider etc .

[Marius]

The problem is DR that many ppl only have on pair of tyres for all there races. So like me you have to go the middle road, the best of everthing. I guess it's the same for those 4X4's, put on a pait of Yokohama super diggers and you can go just about any were:-P

[NotSoBigBen]

And even if you think you know (cause it rained all night) it probably turns out that no race is all mud so you'll have an OK tyre some of the time, now I guess vat Crater Cruise fing that's another story .........

 

So as per BigWeld get the 2.1 something of your choice, experiment a bit with tyre pressure (after going tubeless) and in 99.847% of the time you'll be fine.

[Thug]

Something which is often overlooked when purchasing a wider tyre is what will happen to the clearance between the tyre (when caked full of mud) and either the arch on your fork or the stays on your rear triangle (or even both).

 

I've found with my Superlight that when my 2.2's are caked as happened this past weekend, the clearance between the rear stays and the arch on the front fork disappears and I then have to stop remove the mud and then continue.

 

When I need to change tyres, I'll go back to a 2.0.

 

[Thug]

Marius, do you find that the bracket connecting the rear stays on your Superlight gets clogged up with mud ?

[Marius]

Thug, sure, mud builds up but not more so than on other places on the bike. It gets in every were! even builds up on me!!

 

 

Marius2008-05-06 04:23:37

[Ox_Wagon]

I ride a very old hardtail frame that was build when 1.95 tires pumped nice and hard to eliminate snake bites was the norm.   They go like mad on hard pack but kill you on the grassy bumpy bits.  If you?re riding a FS bike it isn?t problem but a hard tail is another story.  <?: prefix = o ns = "urn:schemas-microsoft-com:office:office" />

 

So to increase comfort I went and got the largest volume tire that fit in my frame. The problem is that tire sizing is misleading.  WTB and a few other manufactures tried to fix this a few years back but the standard was not wholly accepted. They proposed a double measurement consisting of the tire volume width and maximum width.  For tire with very small nobblys (like the Small block 8 and some of the Botagers) the measurement may be the same.  Have a look at WTB website.  Most manufactures do however state an ISO standard size on the side wall.  

 

http://www.sheldonbrown.com/tire_sizing.html

 

Which give you the maximum width and rim size.  But it still causes confusion in that you can get a 2.1? Maxxis Larsen TT with 52mm width and a 2.1 Kenda SB8 that is 54mm. Or in my case I am running a Mountain King 2.2? with a 55mm width.  And if your after maximum volume for comfort the Mountin King and Small Block 8 may even have about the same volume even though the MK is wider, due to the smaller blocks of the SB8.

Ox_Wagon2008-05-06 10:49:57