http://citycyclingedinburgh.info/bbpress/ CityCyclingEdinburgh Forum » Topic: My first tub en Wed, 13 May 2026 04:30:57 +0000 http://citycyclingedinburgh.info/bbpress/topic.php?id=9970#post-108025 Fri, 19 Apr 2013 06:59:57 +0000 Charterhall 108025@http://citycyclingedinburgh.info/bbpress/ <p>What are your plans for repairing them if/when you puncture ? </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=9970#post-108021 Thu, 18 Apr 2013 22:51:46 +0000 kaputnik 108021@http://citycyclingedinburgh.info/bbpress/ <p>I've gone for cement as it both seems cheaper in bulk, and also I'm paranoid enough to not want the faint chance of them rolling off on a corner (even through I'll probably only be cycling them in straight lines!)</p> <p>Fortunately have wooden floors in 3 rooms.</p> <p>My biggest worry is changing one on the road if it goes. I've bought an extra tube and valve neck, having agreed with advice that it's best to carry a prepared spare tyre rather than one in the packet.</p> <p>Have also invested in sealant as I'm advised by reading on other forums that it's pretty effective in stopping a tub from deflating. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=9970#post-108001 Thu, 18 Apr 2013 20:33:15 +0000 DaveC 108001@http://citycyclingedinburgh.info/bbpress/ <p>You varnish your tyres?!?! Won't that make them less grippy??? ;0) </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=9970#post-107991 Thu, 18 Apr 2013 19:59:05 +0000 Charterhall 107991@http://citycyclingedinburgh.info/bbpress/ <p>Does anyone still use shellac ? </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=9970#post-107990 Thu, 18 Apr 2013 19:57:54 +0000 Charterhall 107990@http://citycyclingedinburgh.info/bbpress/ <p>NB If tempted to use tape instead of cement, it's certainly far less messy. The downside is that if you need to replace the tyre during a ride, ie with the spare that you will have rolled up and strapped under your saddle, when removing the tyre the tape comes away with it so there's nothing left on the rim to hold the spare. Unless you carry more tape with you.<br /> I've also found that in the wet even if using cement sometimes the spare won't stick. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=9970#post-107986 Thu, 18 Apr 2013 19:49:04 +0000 Charterhall 107986@http://citycyclingedinburgh.info/bbpress/ <p>Put them on the rim without cement first, pump to full pressure and leave overnight. Stretches them a bit and makes life a whole lot easier the next day when trying to stretch them over a horrible mess of cement. </p> <p>But before you do this you need to find a nice cool but dry cellar in which to mature them for a few years. Improves the puncture resistance. Allegedly. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=9970#post-107976 Thu, 18 Apr 2013 18:52:46 +0000 wee folding bike 107976@http://citycyclingedinburgh.info/bbpress/ <p>I used to use tape to hold them on but I think it's more expensive than cement.</p> <p>It's not terribly hard to fit them but make sure you have them on straight because you're not going to want to take them off once they are stuck.</p> <p>I stopped using them about 12 years ago because they were a bother to mend.</p> <p>I had a few of them come unstitched at 175 psi. That makes a bit of a bang. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=9970#post-107972 Thu, 18 Apr 2013 17:38:43 +0000 Cyclops 107972@http://citycyclingedinburgh.info/bbpress/ <p>It can be a bit of a long drawn out process especially with new rims as they'll need 3 to 4 coats of cement.</p> <p>I'm not going to go through every step of the process as I'm guessing you've read up on that. My tips would be use a good solvent to remove any oily traces from you new rim. Take your time and let all the coats of cement except the last to dry fully. Do it somewhere clean and uncarpeted - almost anything will stick to tubular cement and it can messy to get back off again.</p> <p>Taking your time is probably the most important - it'll be at least 36-48 hours after you've started the process before you can ride the tub. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=9970#post-107971 Thu, 18 Apr 2013 17:16:32 +0000 Darkerside 107971@http://citycyclingedinburgh.info/bbpress/ <p>Nope, but I'll confess to having just googled 'does tubular cement bond skin'. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=9970#post-107969 Thu, 18 Apr 2013 17:07:22 +0000 kaputnik 107969@http://citycyclingedinburgh.info/bbpress/ <p>Depending on who you ask;</p> <p>Advantages</p> <p>less likely to puncture<br /> far less likley to pinch flat<br /> corner better<br /> lighter<br /> higher pressure<br /> mount onto cheaper (potentially lighter) wheels</p> <p>Drawbacks</p> <p>Faff of installation<br /> cost of tyres (c. twice the clincher equivalent)<br /> Modern clincher tyres are now almost equivalant in terms of rolling resistance and lightness<br /> Potential to roll-off in extreme lateral forces or when incorrectly mounted</p> <p>They are generally only used in pro and track racing, by people with oldschool wheelsets or people like me trying to save a bit of cost in buying bling wheels. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=9970#post-107968 Thu, 18 Apr 2013 16:38:57 +0000 DaveC 107968@http://citycyclingedinburgh.info/bbpress/ <p>No idea about Tubulars... looks far too complicated. What is the benefit? I only see problems when coming to fixing a puncture. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=9970#post-107962 Thu, 18 Apr 2013 15:57:18 +0000 kaputnik 107962@http://citycyclingedinburgh.info/bbpress/ <p>So I've finally ordered the tubular tyres, cement, sealant and valve extenders to go with the Planet X aero rims I got in a sale about 18 months ago and have never left the box. I think I've done all my research correctly and ordered all the right bits (correct cement, correct length of valve, that type of thing)</p> <p>Anyone have any experience of installing tubs? There's plenty of advice online, but nothing quite like having pointers from a real person.</p> <p>(And before anyone asks what on earth posessed me to buy tubular rims, compare the price of tubular and clicher equivalent in deep-section carbon wheels, and observe the &gt;50% difference in price. ) </p>