Sly
Reged: 07/02/2008
Posts: 549
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I dread the day I suffer a flat out on the road. My Campag Vento rims are reportedly bigger than other rims, and this could be part of the reason why it's so damn hard changing a tyre. Last time I changed a tyre it took 2 fully grown men several hours (I kid ye not) to a) get the thing off, and b) get another one on!
I exacerbate the problem by running on puncture resistant tyres (once specialized Amadillos, and now Michelin Krylion Carbons). Originally I had Vittoria something or others which kept flatting, and these were relatively easy to sort out.
So, I'm left wondering if it's the tyres or the rims that are my biggest issue. I'd rather not spend money on new rims unles necessary, but I also find flat tyres ruin my enjoyment of cycling, so I have a complete love affair with toughened rubber products, and don't want to give them up!!   If the tyres do their job, they'll not puncture and my fear will never be realised. However, should the unimaginable happen, I will be left stranded cos These things just don't come off/go on!! 
Do others have this dilemna?
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kieran
Reged: 11/07/2007
Posts: 389
Loc: currently in toronto.
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i have herd this about campag rims however my khamsin rims seem fine with my vittoria zaffiro tires. (great punture resistant tires IMO)
campag in their literature, assure us that they build their rims to exact industry standards, but there seem to be some tires that work better than others.
i can`t remeber where i read about this, maybe on roadbikereview.com try giving it a look for some suggested tires.
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bianchisattva
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hubbub
Reged: 22/10/2007
Posts: 393
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I don't use factory wheels, preferring to build my own but "tight" tyres don't bother me. The trick is to push the bead across into the well in the centre of the rim. That gets you more slack to play with on the opposite side of the tyre. I can get Schwalbe Blizzards and Panaracer Paselas on and off a DRC ST17 (the Open Pro sized one) with bare hands. The same technique will get a Schwalbe Marathon+ on/off a Mavic MTB rim, and THAT really is a pig.
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themadchemist
Reged: 22/04/2007
Posts: 284
Loc: South Cheshire
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I've had problems with tyres and my Campag Omega V rims,which are on a pair of hand-built wheels.
I've been using Michelin Speedium tyres for the last year or so,and with them being folding i find them a lot easier to get on and of.
They don't have any puncture protection,but the airstop butyl inner tubes seem to help with that as even after 2 thorns punctured them they stayed up.This hasn't happened just once either...so not just a lucky one-off 
I am looking for replacement tyres,so i'll be keeping an eye on this post for any recomendations.
I've got UltraGatorskins on my other bike,but know from experience that these are a pig to put onto Campag rims,which is a shame as they are a cracking tyre.
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massi
Reged: 03/06/2008
Posts: 73
Loc: somerset UK
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I posted about this on another forum recently. I'm glad to see that it isn't just me.
I have some Khamsins which are essentially the same as Ventos .
I have damaged my rims using metal tyre levers trying to get some new Vittoria Rubino Pro intrepids onto the rims
When I finally got the tyre on the rim I had gouged huge bits out of the braking surface and the tyre was stuck so deep into the central part of the rim that the walls of the tyre are invisible.
I tried them on my old MA3 rims which are 8 years old .Just the same.
I think they are either a poorly made batch of tyres or manufacturers are making tyres smaller so they don't fall off rims and they get sued !
Bought some GP4000 this week and they are almost as bad. I've pinched two tubes today getting them onto the rims with tyre levers. Grrr
I'm going to try some Michelin Pro's next
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wuverley
Reged: 16/05/2008
Posts: 845
Loc: Man of Kent
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Vredestein fortezza Tricomp.
They are the best.
How many times must I repeat myself?
Sorry, (pretend)teacher coming out in me.
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Invicta
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DougMorley
Reged: 15/12/2006
Posts: 179
Loc: BC Canada
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I seem to remember going down this road here before.
I too have Ventos. They were supplied with already mounted wire beaded tyres. I had the devil's own job getting them off. The answer was simply yo use kevlar beaded tyres plus a good strong set of tyre levers.
Any tyres seem to fit, just stay away from wire beads.
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kieran
Reged: 11/07/2007
Posts: 389
Loc: currently in toronto.
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well i have to say i have used wire bead victiorria zaffiro tyres on khamsin rims
and managed to get them on sans tyre levers no problems
they're not light but great training tyres put almost 2000 miles on them so far with very few punctures and they inflat to 145psi and wear really well(with rotaion).
although today i sliped on my good wheels with michelin pro tyres and noticed a much smoother ride. maybe its down to the 116psi inflation.
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bianchisattva
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DougMorley
Reged: 15/12/2006
Posts: 179
Loc: BC Canada
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Perhaps, just as with clothing sizes, simply saying that a tyre is 700x23 doesn't mean that it is exactly the same size as another supposedly identically sized tyre of another make.
With Campag, just as you say, Kieran, their literature does specify that their rims are not just of industry standard but also that they hold tyres on more securely.
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Sly
Reged: 07/02/2008
Posts: 549
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Quote:
they're not light but great training tyres put almost 2000 miles on them so far with very few punctures
That's my problem - I suspect I could easily find a number of tyres that I could get on and off if I were prepared to put up with "very few punctures", but I'm not. I have had zero punctures in 2000 miles on Armadillos and Krylion Carbons, so I guess I just have to accept that I either suffer flats or continue with tougher tyres and prey the worst never happens whilst far from home!
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kieran
Reged: 11/07/2007
Posts: 389
Loc: currently in toronto.
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well in fairness
i had only one pinch flat when i hit a pot hole at speed, then the last two (rear)flats where due to me not having switched the front and rear tyres even though the rear had gotton pretty squared off and obviously was coming to the end of it life.
(i was reluctant cause it only taken me about 2 months to rack up the 2000 miles)
since switchig them round which i should probably have done 500miles ago i've not gotton another.
i'm really very impressed with them especially as i was getting almost one flat per ride before using them.
toronto roads, just after the winter and early spring are littered with huge amount of debris that collects in all the snow, ice and grit of the long winter months.
of course we should go with what we are used to but for roughly 25$ a go they're great tires in my book. I've gotton the folding pro version ($40) for when these finaly go which are the same weight as michelin pro 2 tires. we'll see if they last as well.
BTW first time i used armadillos i got a flat on my first ride after less than 70 miles, shard of glass went right through it  go figure. guess i got puncture karma or something 
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bianchisattva
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Sly
Reged: 07/02/2008
Posts: 549
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Thanks Kieran. I spose when you have a good experience, whether it's pure luck or not, you tend to feel reluctant to change.
Those Zaffiros are about £8 each, which is ridiculously cheap! Won't lose much by giving them a try at that price.
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kieran
Reged: 11/07/2007
Posts: 389
Loc: currently in toronto.
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i don't think you'll be disappionted, they were a little tight first time using them but got much easier after being inlfated for some time.
good luck
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bianchisattva
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tonybv9
Reged: 08/10/2007
Posts: 370
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If you have problems fitting a tyre to your rim, try a Var Tyre Lever. They are superb, and make it really easy, even in cold, wet conditions.
I have Campag rims and even brand new tyres are easy.
I have switched to Vredestein Fortezza Tricomps. THey are excellent.
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bfergie
Reged: 19/04/2008
Posts: 905
Loc: Wickerman land,Scotland
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Used Vittoria Rubino folding tyres since february, easy fitted but I have shimano wheels, 3200 miles on and they are needing changed but never had a puncture with them! At £12 something each I can't complain about that...But if you get some it will be one more thing on the stalker list!!!!
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VOTE PENGUIN!!!
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massi
Reged: 03/06/2008
Posts: 73
Loc: somerset UK
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I think it is necessary to distinquish between those tyres that are difficult to fit and remove (with or without levers or aids ) and those tyres that are quite simply incorrectly sized. Tyres like anything else manufactured of rubber cannot be precisely sized as can metal rims.There is always faulty batches of course to add to the problem.
Its not much help to a poster to state that a particular tyre is not a problem because it fits perfectly without problem on a different wheel the same as it is pretty pointless saying there is nothing wrong with a particular male and model of wheel because a different tyre will fit fine.
There is no doubt that some tyre and wheel combinations are more difficult than others .There is also no doubt whatsoever in my experience that some tyres are made to incorrect tolerances and are unlikely to be suitable for purpose on any wheel.
What I think is needed is to collate everyone's experiences and put them together into a excel type spreadsheet so that anyone can select a tyre for their wheelset based on others personal experience and rating.
What I would propose is this .
We state the make and model of the wheel with appropriate model number as appropriate.(Factory wheelsets only to start with)
State the make and model and size of brand new tyre that has been fitted to that wheelset.
Then a rating is given to the ease with which the tyre was fitted to the rim for the first time.
The rating should be short and simple such as A,B, & D
A] fitted and removed easily without any significant force but perhaps with assistance of tyre levers.Easy to
B] Fitted ok but required tyre levers and some considerable effort. Tube pinch likely or possible.Possible to fix flat on the road with difficulty
C] Tyre does not fit without levers and considerable force. Tube pinch or rim damage likely.Impossible to fix flat on the road.
D] tyre does not fit to rim.
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