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Continental GP 3000's, do they run a little small(8 posts)

Continental GP 3000's, do they run a little smalltxcross
Aug 19, 2003 3:27 PM
Just got a set of these tire with a new bike purchase and am in the process of building it up. Figured the mounting of the tires to the rim to be the easiest part, I'm wrong!

Here's what I have, Conti GP 3000's going on a set of Bontrager Selects. I cannot for the life of me get the tire on the rim. I pulled out two other sets of tires (wire and kevlar beads) and both intalled easily on the Bontrager rims. I then tried the GP 3000's on another rim set I have and again cannot even get one bead on.

So, do these things run small? They are clearly marked 700x23.

If they do run small is there anything that I can do to mount these things or should I just trash them and go with something else?
I haven't had trouble mounting them.... I dunno...nmrwbadley
Aug 19, 2003 3:37 PM
They will be tight the first installspookyload
Aug 19, 2003 4:21 PM
Just get them on the first time, ride them for a couple hundred miles, and the bead seems to stretch out. Later install and removals aren't as bad. On a side note, I had a pair of the select wheels, and actually sold them because tires were so hard to mount on them. I tried Axials, GP3000, veloflex pave, and hutchinson tires and they were all VERY hard to install tires on.
Not compared to Michelins (try talcum powder)Kerry Irons
Aug 19, 2003 4:45 PM
I find that Michelins are definitely harder to mount/remove than GP3000. Try dusting the bead of the tire with talcum powder - you might be experiencing the stickiness of clean, soft rubber rather than a bead that is too tight. Also make sure that you've worked the bead into the center of the tire all the way around before you try to get the last few inches over the rim.
re: Continental GP 3000's, do they run a little smallzero85ZEN
Aug 19, 2003 6:47 PM
I recently mounted a pair of couple year old (never used) GP 3000's on some old Trek Matrix rims and was able to get the Conti's on with just my 10 tire lever needed. (For those not familier with Matrix rims let me just say that they ran a tad on the BIG side. It is almost impossible to get ANY tire on them without using a tire lever! Forget trying to mount Michelins on them!) I found the GP 3000's to run BIG. And was happy for it considering the rims I was mounting them on. Could be that Conti has changed the size slightly with the latest one's to roll out of the factory.
Who knows?
I hear ya'....fasteddie
Aug 19, 2003 8:40 PM
I posted a similar problem just a couple of weeks ago. I bought a batch of new GP3000s and had a devil of a time mounting them. I had used GP3000s for the last few years, which were always an easy fingers-only mount. On the new ones I finally resorted to forcing the last bit on with a tire lever (after a couple of hours futzing around with it). Rode for a few days and they did loosen up to the point still requiring a little work, but acceptable to mount. Makes me wonder what Continental has changed in their manufacturing process/specs.
have no problems with CXP33 or Open Pro rims and contis (n)ColnagoFE
Aug 20, 2003 7:39 AM
just mounted a pair last nightmoschika
Aug 20, 2003 8:28 AM
and they were the easiest tires i've put on in a long time. no levers needed. they were going on OPs.