Tyre rotation
- europa
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Tyre rotation
Postby europa » Thu May 10, 2007 1:59 pm
So, is tyre rotation as sensible as it appears to be on the surface?
If so, when? I'm thinking I'll do it at 1500km, then look at doing it again (or a new set) at the next 1500.
Richard
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Postby Hotdog » Thu May 10, 2007 2:24 pm
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Postby europa » Thu May 10, 2007 2:39 pm
Yeah, but my rear tyre is still very good - I'd be happy to have it on the front. We're talking well less than 50% wear on the centre strip and none visible on the treaded sides.Hotdog wrote:Sheldon Brown is against tyre rotation. His argument is that you should always have your best tyre on the front as while it gets less wear it's more safety critical. The suggested strategy when the rear tyre is worn is to move the front tyre to the back wheel but buy a new tyre for the front.
Also, I'm not interested in a mismatched set nor being locked into one tyre.
Other than that, I agree with Sheldon's basic tenant that you want a good tyre on the front.
Richard
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Postby MichaelB » Thu May 10, 2007 2:40 pm
But What Richard and I are looking at, is our particular tyres have a raised centre strip that wears down close to the remaining tyre to make the profile "rounder".
The tyre is still in fine condition, and it is likely that I'll take the approach of rotation.
Serious racer types etc, can ignore the rotation issue.
I'm not that serious, and I've not seen the tyres that we have available locally either
ooroo
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Postby sogood » Thu May 10, 2007 2:59 pm
RK wrote:And that is Wikipedia - I can write my own definition.
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Postby tuco » Thu May 10, 2007 3:01 pm
Mine will clock over 3000km on the weekend. The rear one has a flat area around it and the front looks okay.
I've been looking at it for a while wondering how long it will last.
I thought about rotation but the front tyre is the last one I want to have destroy itself mid ride.
Since I'm racing it might be best to replace the rear and save injuring a few riders if I had a blow out.
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Postby sogood » Thu May 10, 2007 3:16 pm
I just retired a Conti GP4000 used at the rear after 4500+km. There's still some life in it as it still hasn't worn down to the base of the wear indicator. But a deep cut removed a chunk of rubber and it would not be safe to continue to use it.tuco wrote:How long does a tyre last?
Mine will clock over 3000km on the weekend. The rear one has a flat area around it and the front looks okay...
Life of tyres vary a lot depending on the type of tyre. Some racing specific tyres wear out within 2000km while others just last. The weight of the rider/luggage also play a part in the wear. A common reference I read is that you can ride it until base threads starts to show or when punctures becomes too frequent for comfort (related to thinning rubber).
RK wrote:And that is Wikipedia - I can write my own definition.
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Postby MichaelB » Thu May 10, 2007 3:29 pm
Don't disagree, but it is also good to keep matched tyre pairs as well. So if you can't get replacements, then rotation when the tyres are still good is an alternate option.sogood wrote:I subscribe to Sheldon Brown and many others' logic of keeping the best tyre at the front. The idea here is to always place the new tyre at the front and move the old front to the rear, and retire the rear. Pretty simple.
As with many things, common-sense applies (of which I have just enough..... most of the time)
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Postby europa » Thu May 10, 2007 3:38 pm
Richard
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Postby europa » Thu May 10, 2007 4:20 pm
Not quite true with me. I always replace tyres as a set, rather than just buy one new one, but I don't recall seeing a difference in wear like I am with this set - in the past it didn't really matter that I was tossing away a partly worn front but the way things are going, the rear is going to be knackered long before the front shows any real wear at all. Maybe it's a product of the new rubber, more likely to be a product of me being a lot larger than I was in the eighties and hence I'm putting more weight on the rear now.Bnej wrote:Well rotate them if you want to.
Overall, you're going to wear out the same number of tyres though, you're just fiddling the order.
Much as I don't like to be constrained in my choice, the Bongrager RaceLights I'm running have proven to be good tyres, so buying another one isn't going to upset me greatly ... provided I can find one at a half extortionate price when the time comes.
We'll see. You watch, I'll discover some glass damage on the rear and wont want to risk it on the front anyway
Here's another question - do more punctures happen on the rear (more weight, more chance of driving in the object) or is it random? My memory would seem to suggest the rear is more vulnerable.
Richard
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Postby MichaelB » Thu May 10, 2007 4:35 pm
I guess the rear is more vulnerable as the added weight can help to really grind in the piece of glass or whatever.europa wrote:
We'll see. You watch, I'll discover some glass damage on the rear and wont want to risk it on the front anyway
Here's another question - do more punctures happen on the rear (more weight, more chance of driving in the object) or is it random? My memory would seem to suggest the rear is more vulnerable.
Richard
Funnily enough my first puncture was on the front .....
A quick google fails to reveal a store that sells the tyres on their own. There are plenty that sell them with afree bike thrown in though ,......
Cheers
Michael B
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Postby sogood » Thu May 10, 2007 4:38 pm
RK wrote:And that is Wikipedia - I can write my own definition.
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Postby Hotdog » Thu May 10, 2007 4:49 pm
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Postby sogood » Thu May 10, 2007 5:06 pm
I have not had a front flat after 5 rears...Hotdog wrote:While I understand the arguments for rear tyre punctures being more likely than front tyre ones my peace of mind requires me to continue to delude myself that it's the other way round Getting the rear wheel off my hub geared bike to change a tube is much more of a PITA (it involves two different spanners and two allen keys) so the idea of having to fix a front wheel flat by the side of the road is fine but I wouldn't like to get a rear wheel puncture while far from home.
I think you better learn to do the rear pronto.
RK wrote:And that is Wikipedia - I can write my own definition.
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Postby europa » Thu May 10, 2007 5:11 pm
Which is why my fixie wears quick release skewersHotdog wrote:While I understand the arguments for rear tyre punctures being more likely than front tyre ones my peace of mind requires me to continue to delude myself that it's the other way round Getting the rear wheel off my hub geared bike to change a tube is much more of a PITA (it involves two different spanners and two allen keys) so the idea of having to fix a front wheel flat by the side of the road is fine but I wouldn't like to get a rear wheel puncture while far from home.
Why so complicated? I can understand why a quick release axle might not work, but why the extra messing about? I wouldn't worry about it though - just plan on fixing the flat on the side of the road rather than replacing the tube (you don't have to remove the wheel to just fix the flat - don't ask how I know ... and that was in the days of real vulcanised patches )
Richard
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- MichaelB
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Postby MichaelB » Thu May 10, 2007 5:18 pm
$59.xx for the Wire Bead Race Lites (as per Richards and my bikes)
$89.xx for the foldable Race X Lites.
Looks like GP4000 or similar from the web for the next set of tyres.
Just missed out on the Vittoria Rubino Pro's at Torp 7 for $20 ea
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Postby Hotdog » Thu May 10, 2007 5:25 pm
Well, as you guessed sticking a quick release skewer through a geared hub isn't an option so I need a 15mm spanner to loosen the two axle bolts. I've also got a roller hub brake on the rear wheel which use a torque arm clamped to the stay on the left side, and removing that requires a 10mm spanner together with an allen key. Finally I need to detach the brake and gear shift cables, and unhooking the gear shift cable needs a small allen key. Once you know how it's not difficult but still takes a few minutes.europa wrote:Why so complicated? I can understand why a quick release axle might not work, but why the extra messing about? I wouldn't worry about it though - just plan on fixing the flat on the side of the road rather than replacing the tube (you don't have to remove the wheel to just fix the flat - don't ask how I know ... and that was in the days of real vulcanised patches )
Before I got it all worked out I had previously patched a rear tube in situ to avoid the hassle of removing the rear wheel, but that wasn't by the side of the road it was when I had plenty of time for the glue to dry.
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Postby Bnej » Thu May 10, 2007 6:44 pm
You can get solid, airless, road tyres. They just suck donkey nuts.europa wrote:I might go down to the Goodyear factory and get them to mould on some solid rubber
In essence you trade the occasional inconvenience of punctures for:
- much worse rolling resistance
- harder to fit tyres
- poor shock absorbing
- worse handling
- probable rim damage due to lack of force distribution.
Couple of people I ride with have Conti GP4000s, they sound good.
- mikesbytes
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Postby mikesbytes » Thu May 10, 2007 11:03 pm
Get about 9 months out of a front and 3 months out of a rear.
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