Schwalbe Marathon Plus Road Tyre
PeterHeath
Posts: 6
Has anyone had puncture problems with Schwalbe Marathon Plus Road Tyre - Smart Guard tyres?
I've had a puncture on my first 3 rides and they're supposed to be super puncture resistant.
I think it might be pinch punctures, is the pressure really important?
I was told to inflate to max (115) psi but I'm really not sure it should be that high as everyone else is talking about 70/80 psi.
Any ideas/thoughts anyone?
thanks
I've had a puncture on my first 3 rides and they're supposed to be super puncture resistant.
I think it might be pinch punctures, is the pressure really important?
I was told to inflate to max (115) psi but I'm really not sure it should be that high as everyone else is talking about 70/80 psi.
Any ideas/thoughts anyone?
thanks
0
Posts
Rose Xeon RS
Out of interest are the 3 punctures you've had in different places around the tube?
A good tip is to align the tyre logo with the valve then when you puncture just find the hole in the tube, line the valve up against the tyre and you have a 50/50 chance of knowing the exact place in tge tyre.
Pressures quoted here are high for me but this is very dependent on weight. My wife rides Marathons at about 70/80 but she rides 28mm...not sure of her weight (probaby 75kg as a wild guess) but I do know she rides nearly every day and has not punctured in years.
When you get the puncture, do you examine the wheel/tyre corresponding to where the puncture is in the tube?
thanks everyone, i guess I'll just have to look a little deeper. The general consensus is that these babies don't puncture so it must be me. thanks for the help
I am ready to risk a quid that you are pinching the tube somewhere as you fit.
If you dont use high pressures then the tube will not burst at home... but probably take its time when you are out riding.
Butyl tubes dont need constant pumping up by the way, they lose very little pressure.
I have had a Schwalbe One tub pumped up to over 7 bar on a rim to stretch it for over a month and is still rock hard.. this has a butyl inner.
OK, so try and pump up and either locate the hissing sound or if they inflate but then deflate go old school. Remove the tube, inflate to a safe level (just until sausage shape) and then immerse in a bucket/sink of water. Find the cause of the deflation. This may insult you but don't overlook the fact that you may not be tightening the valve stop correctly. If you have a single hole then this suggests something stuck in the tyre so remove the offending tyre and check carefully. If the hole is on the wheel side (inner edge of the tube, as in rotate the tube until it is the same as when in the wheel with the valve inner) then this could be a spoke or rim issue. A double hole would indicate pinch flat or snakebite but I don't think this sounds likely on every ride.
The tip above about pinching the tyre when fitting also sounds very plausible and can be determined by simply leaving the bike pumped up for a day or so without riding and see if the tyres deflate on their own. Don't forget to add a few psi to the tube before fitting to help with this issue.
This really does sound to be a relatively straightforward problem but you need to be a bit more logical in your investigation or get some assistance with basic techniques.
https://www.youtube.com/watch?v=-XUFVrl0UT4
700cx 28mm 100 psi. Nothing has got through yet, although I have pinched a couple of tubes as they are a tight fit.
Growing old is mandatory; growing up is optional.
Take out the tube and find out where you punctured and then check the tyre or rim.
I'll bet you've pinched the tube.
As others have suggested, check the inside of the tyre for trapped foreign objects, even small shards of grit can cause punctures at high pressures over multiple wheel rotations.
Another item to check is the performance of your rim tape - if it is past its best, the tape may be deforming over spoke holes in the rim at 115psi, causing a puncture from any spoke ends. I had this problem a few years ago. If you can see marks on the rim side of the inner tube corresponding to one or more rim holes (or punctures in this location), then the chances are that the rim tape is not working as it should.
HTH,
N
but so I replaced the inner tube, and it held air for suitably long enough, all seemed good, but next time I went out about 10 miles in, it punctured again,though again with no obvious sign of anything sticking out of the tyre.
so could have been the rim tape had moved, or even a loose spoke as my LBS informed me during a service a week later that one of them had come loose, or I did notice when feeling around the inside of the tyre there was a tiny deflection of the reinforced tyre section, possibly again caused by hitting that bump too hard, that might have caused a rough spot in contact with the tube I dont know.
whatever I just swapped the tyre out for another Marathon Plus, put on some new rim tape and fingers crossed all has held up well since...and I avoid the bump now (well actually the council filled it in eventually)