Hi,
Had my second puncture in 2,500 miles today, and the first that I had to change alone. I am ashamed to admit that it took me well over an hour to fix, and my thumbs are now blistered pulps
I have changed tyres on my old MTB loads of times without probs, and had no trouble this morning...until it came to getting the tyre back on the wheel! Man, was that hard! I am running Fulcrum DB Sport CX disc-brake wheels with quite deep rims (30mm) and Conti Grand Sport race tyres (25mm wide).
I have tried watching a few vids just now to see where I was going wrong and one thing I've picked up straight away is that I need to push the bead down into the trough of the rim as I go around, which I wasn't doing.
I've also seen this advice -
- For the other bead, start opposite the valve and work your way up to it. Since the valve occupies the lowest section of the rim, if you start there you give yourself a huge disadvantage.
I was doing the opposite by starting to pop the bead back into the rim at the valve rather than opposite it, though I don't see how that would make any difference as the depth of my rims is the same all the way around as far as I can tell?
In the end I had to use the tyre levers off my Top Peak multi-tool (
http://www.chainreactioncycles.com/...gclid=CIPx9Zba2sYCFeXLtAodCnYNSA&gclsrc=aw.ds) to slide the bead back over the rim, but "slide" doesn't do it justice really as it was still a nightmare and took ages, with much struggling and swearing. Is it right that using levers to run the bead back inside the rim is a bad idea? I was being very careful and don't see how it would have been possible without them. Do other people use any kind of tool to help get the tyre on the rim?
Even with the levers it was a nightmare though, so if anyone can offer advice or suggestions of better tools for the job easier I'd be very grateful.
I've watched these 2 vids, which are helpful re: the bead into the trough thing, but it's immediately obvious that neither of these guys are up against the same level of struggle I was - their rims are much smaller and there's obviously far more give in their tyres.
View: https://www.youtube.com/watch?v=-XUFVrl0UT4&feature=youtu.be
http://www.artscyclery.com/learningcenter/changingaflattire.html
Maybe I just have a really bad rim/tyre combo?
Cheers, Andy