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Tubeless tires
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 2013-04-07 4:57 PM |
 224 |  Subject: Tubeless tiresBeen looking a a road bike offered with reynolds DV46 rims tubular. Seller said they are tubeless (like run flat car tires). How do they work? He said they run flat and repair kit not needed. He said something about foam to fill the tube in the event of a flat. Not sure what he meant. I have run flats on my minivan and know that they are expensive to replace in the event of a flat. Bike seller said in the rare event of a flat they could still run and most likely tires would need replacing (expensive compsred to just a tube) Could someone simply tell me how these types of tires (rims) work. How they are changed. How expensive/inexpensive is it tohave maintain. Rest of the bike is a nice deal but these tires scare me a little (guess they and the rim can be replaced) |
| 2013-04-07 5:07 PM in reply to: #4690347 |
Member 796   Malvern, PA | Subject: RE: Tubeless tires Though I am not a fan of "Bicycling" magazine, here is a short write up on road tubeless. http://www.bicycling.com/bikes-gear/new-bike-gear-previews/should-you-go-tubeless I have some clubmates who use tubeless and like it. My personal opinion is more trouble than they are worth...at this point in time. Edit: I just reread your post. This bike has TUBULARS (aka sewups). Not the same as in the link above. They have a tube inside but the tire is sewed around the entire tube. The tire/tube combo is GLUED onto the rim. You can't really ride them flat. A major hassle IMO... Definitely more trouble than they are worth for a newbie cyclist. Read up on tubulars or sewups but I say not for you at this point in time. Edited by datlas 2013-04-07 5:10 PM |
| 2013-04-07 6:28 PM in reply to: #4690347 |
Expert 1484 | Subject: RE: Tubeless tires Way different. Bicycle Tubluar tires are not like car run flat tires. As suggested read up on clincher vs tubular bike tires. Tubulars have their place, I'd guess what you really want are clinchers. |
| 2013-04-07 6:40 PM in reply to: #4690347 |
Extreme Veteran 681 Mount Joy | Subject: RE: Tubeless tires Tubular have their advantages. Can run at a higher psi for less rolling resistance amd no pinched flats. I use tubular for my race wheels but stick with clinchers for my training wheels because they are less expensive and easy to change while on a ride. I think that is the best way to go. Depending what kind of distance your racing if you flat doesn't matter what type of tire you run your out of contention. Two years ago I ran only tubulars and ended up having 6 flats throughout the year on training rides at $100 a tire I was out a pretty penny that year. Since then I put gatorskins on my clinchers and not a flat since |
 2013-04-07 7:17 PM in reply to: #4690438 |
| Subject: ... This user's post has been ignored. |
| 2013-04-07 7:23 PM in reply to: #4690438 |
Champion 6627 Rochester Hills, Michigan Gold member | Subject: RE: Tubeless tires swimmer04 - 2013-04-07 7:40 PM Tubular have their advantages. Can run at a higher psi for less rolling resistance amd no pinched flats. Higher PSI doesn't equal a faster tire. Also, to Fred's point, rolling resistance is a combination of a bunch of factors...witdth, pressure, contact patch, etc. Tubular doesn't magically make the equation better. The right tire - clincher or tubular - on the right rim at the right PSI does, though. |
| 2013-04-07 7:24 PM in reply to: #4690359 |
| Subject: ... This user's post has been ignored. |
| 2013-04-07 7:58 PM in reply to: #4690347 |
| Pro 5892 , New Hampshire | Subject: RE: Tubeless tires Those are not tubeless, they're tubulars, not the same thing. With that said, I do love my tubeless tires. Road feel is amazing, and the ability to run lower pressure really makes those long rides much more comfortable. |
| 2013-04-11 3:59 PM in reply to: #4690347 |
| New user 433 | Subject: RE: Tubeless tires I have two sets of wheels, clinchers and tubular. This is all my opinion, but the tubulars feel like I have two tubes on the wheel, less road vibration. I love the fact you can swap out a presta valve on them vs inflating a clincher and having the valve come off, bye bye tube. However, whether you pay someone or do it yourself, swaping out tires is not difficult just not fast. Clincher, 10 minutes, tubular 3 days. You can always have your LBS do it, however, I suspect they over glue them so they tires don't peel off. A friend of my had a drop out of IM because his rental tubular tires were over glued, he couldn't get the tire off. He had to wait a good hour to have someone cut them off and got dehydrated...got a DNF. For me, I love tubulars and won't go back, but realize changing flat tire is a bigger pain when it happens, which for me is allot less often. |
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