|Please help ignoramous with tubular tire questions...||Chris2fur|
Jul 3, 2003 7:40 PM
|Hi. Was given an older Scapin road bike. I want to replace the tires and let my wife try it out, as it's a good fit for her. The existing rims (I think 650 in the front and 700 in the rear) are for tubular tires. I've researched a little on my own, but can't find the answer to a couple of questions:
1) Where can I find the exact procedure for gluing the tires on?
2)Should I even try to do this without experience?
3) Can latex or some other "self healing" compound be put into these tires, or does the Presta valve prevent this?
4) Are the Conti Sprinters any good? I can get them new for $39.00. Is that a good price?
One last general question: This bike has been well maintained and has decent componentry considering its age. I want to put a minimum into it and see how much my wife actually uses the bike before putting much into it. I'm thinking that replacing the tubular tires (which are old and sun rotted) as the cheapest alternative (again, $39 ea.). Will the cost of replacing these tires when they flat (not sure how one would repair them) make me wish I had just spent more and had clincher rims laced to the existing hubs?
Thanks in advance for your help.
|I'd replace the rims||DougSloan|
Jul 3, 2003 7:51 PM
|I'd have the rims replaced and put some cheaper clinchers on. Otherwise, one flat and your behind. Also, with tubulars, you need to carry one spare, even if you do use some sort of sealant. I've been stranded trying to get away with it.
Even if she doesn't like the bike and you sell it, you'll probably have an easier time with clincher rims.
Alternatively, you can buy some complete wheels pretty cheap (check Nashbar or Performance). Might check on that, as you preserve the existing wheels.
|I'd replace the rims||Chris2fur|
Jul 3, 2003 8:28 PM
|I did think about getting a new wheelset on sale, but having a 650 front complicates things. I think this bike frame was designed around this arangement. I'm also not sure if the cassette would be compatible with most freewheel hubs. I'm thinking that having new rims laced to the existing hubs might be the way to go.|
|re: Please help ignoramous with tubular tire questions...||CritLover|
Jul 3, 2003 8:40 PM
|There's an article for glueing at:
Someplace to start, although, experienced users can give a lot of helpful tips.
That's a good price for the Conti's, but I've never ridden them so I won't comment(check the reviews). You can always buy a pair for less. My local shop sells a training tire for $20 (it may be a Ritchey), might be good to start off with something that's extra puncture resistant until you feel more comfortable with fixing.
|Finally went to the Park Tool link....that did it for me...||Chris2fur|
Jul 5, 2003 4:49 PM
|Well, those warnings about all the different ways the tubulars can separate from the rim helped me make up my mind (not to mention the several-day procedure for glueing the tires!).
I'm getting a price for lacing a set of clincher rims to the existing hubs.
|It isn't all that bad...||MShaw|
Jul 7, 2003 10:25 AM
|...the gluing procedure can be shortened by a few steps if you're experienced.
The up-side to tubulars is that they're already on the bike so you won't have to spend a fortune getting new wheels built.
The down-side is that if you have two different sizes of tires, you need to carry two different sizes of spares.
My recommendation: get some inexpensive tires for the significant other to try before you go spend a bunch of money on something that she'll never ride.
Hey, is this a time trial frame you picked up? or is it just very small?
|Answers to #3 and #4||Alexx|
Jul 4, 2003 7:01 AM
|If you want to use sealant, first, you need to have tires with removeable cores. Conti Sprinters, Veloflex, Vittoria Corsa (only), and all Tufo tires fall into this catagory. Under no circumstances should you use Slime or other automotive sealants-they won't work!
Conti Sprinters are good enough tires, and that price is a good one, too. Once again, Veloflex, Vittoria Corsa and Tufo are the brands you will be looking at. Don't buy cheap tubulars (not many in 650 size, anyway)
As for the glue to use-if you buy the conti's, you need to use conti glue. For the others, either conti glue or vittoria mastik1 will work. You won't want to use tubasti.
Don't forget-with 2 tire sizes, you need to carry 2 spares...
|Thanks. What sealant do you recommend? (nm)||Chris2fur|
Jul 4, 2003 8:40 AM
Jul 4, 2003 11:35 AM
|It's the only one that works, usually.|
|do you have a good relationship with your LBS||desmo|
Jul 4, 2003 8:51 AM
|if so maybe you can borrow a pair of wheels to try, on the basis that you will have them rebuild the others if your wife likes the bike. I love tubulars, but have pretty much given up on using them for anything but racing. just too much work to justify using them for training or recreational riding. can also be unsafe if not installed properly. also, if the frame is in nice shape, you might as well spend the bucks for the clinchers. you can always part it out on ebay if she does not like it. you'll make your money back.|| |