Tubs

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  • That would be my suggestion, if acetone does actually affect the old glue. If it does it is perfect, because the old glue will soften, and any rubbish stuck to it will come away with the cloth. ( piece of sheet dipped in acetone is best, in my opinion)
    Leave it till it stops feeling tacky and put on another layer.
    If acetone doesn't affect the glue it will effectively degrease it, and once dry you can carry on. In any case you should use the same type of glue as was used before, that is where some problems occur.

    I stripped all the old glue off, wiped the rim down and it's had two coats of Mastik-1 now, with one on the tyre.

    I'll bring the two together later.

    Leave overnight as a minimum before riding?

  • I saw 24h before riding. As it takes 24h to full set.

  • Did you clean the acetone off with dish detergent or just crack on and glue once acetone dry?

  • I removed the glue mechanically- i.e. I used a lollystick to scrape it off, then washed it down with water.

    Waited for it to air-dry (hardly any time at all), thin coat on the rim, went off and put a thin coat on the tyre, came back to the rim to find the first coat was dry so put a second one on.

  • Ah didnt use acetone in the end.

    Lollypop sounds slow and painfull.

  • Faster than waiting until Thursday when the acetone is meant to arrive!

  • Ha!

  • Acetone is old news. I've just had 5 litres of MEK delivered. Proper nasty stuff.

  • What does it do to carbon fibre rims?

  • Bad things. It softens epoxy resin. I'll be sticking with old skool Acetone for carbon tubulars.

  • Wonder what the active ingredient in this stuff is?

  • msds?

  • Elbow grease, like with virtually any other cleaning product... No need for it.

  • Tubs are on, note to people as stupid as I am:

    • Thread the valve through the hole, get that lined up
    • Start stretching the tyre over the rim
    • Make sure that you apply tension from the very start of this process i.e. from the valve outward
    • This will ensure that you don't have a nightmare trying to get the last bit of the tyre on, wondering all the while why it was so much easier when you dry fitted the very same tyre, God why have you abandoned me in my hour of need, this is fucking stupid why won't the damn thing get on etc etc
    • You will also not then have to go back to the start and stretch the tyre, segment by segment, around the rim from the valve to the opposite side in order to even things up
  • It's got 160 psi in it at the moment, that tyre is going nowhere.

  • It's got 160 psi in it at the moment, that tyre is going nowhere.

    Shame, you used to like getting out and about on your push-bike...

  • I went for a run this evening, I'll be heading into the lanes tomorrow when the tyres bonded on properly.

  • Tubs are on, note to people as stupid as I am:

    • Thread the valve through the hole, get that lined up
    • Start stretching the tyre over the rim
    • Make sure that you apply tension from the very start of this process i.e. from the valve outward
    • This will ensure that you don't have a nightmare trying to get the last bit of the tyre on, wondering all the while why it was so much easier when you dry fitted the very same tyre, God why have you abandoned me in my hour of need, this is fucking stupid why won't the damn thing get on etc etc
    • You will also not then have to go back to the start and stretch the tyre, segment by segment, around the rim from the valve to the opposite side in order to even things up

    ^this .........aaaaaaaaand: Ensure the tire logo is on the right side for the logo on the hub. Else there's something "not quite right" for the anal ones among us.

  • I've got a second spare Veloflex Carbon, which I will be glueing tomorrow.

    We're going away for a weeks cycling on Thursday so following the advice of one Dave Hemming (a hero of mine from my youth, and now he works with my girlfriend- strange how the world works) that if you're going to run tubs make sure your mechanic (me) has lots of spares ready.

    So I'll have 1 X Veloflex carbon and 3 X Vittoria Corsa Evo.

  • I did the opposite. Stretched the fecker with my ape like hands. Came to the opposite end to find excess tyre. Piss.

  • I was thinking back the other day on a Roberts Lo-Pro that I had in the early 80s. It was used as my everyday bike. I got the bike from a serious racer, so it came to me with a real old skool tester set up of 19mm Conti Olympic Track tubular on the rear - the cream coloured one, and a very light silk on the front - can't remeber which one, now.

    Anyway, I very rarely had any punctures - the bike was ridden every day all over town. The rear tub was worn down to the casing and still punctured very rarely. When it did, I did my own very lo-fi repairs. They cetainly punctured much, much less than my Gatorskin clinchers do, now. I guess the tubs where well mutured. So, I think a really good quality matured tubs should be very puncture proof.

    I think it's got a lot to do with the enviroment you live in. If you live in a city where recycling takes place with open boxes, you're liable to have small glass shards spread across the road. People overfill their recycling boxes, and glass ends up getting smashed. Something you wouldn't have had in the 80's

    Virtually all of my punctures are caused by tiny glass shards, and it makes riding Vittoria pointless in Birmingham - they last a month before being cut to shreads by glass. Hopefully at some point we'll get mixed recycling wheelie bins....

    • Make sure that you apply tension from the very start of this process i.e. from the valve outward
    • This will ensure that you don't have a nightmare trying to get the last bit of the tyre on, wondering all the while why it was so much easier when you dry fitted the very same tyre, God why have you abandoned me in my hour of need, this is fucking stupid why won't the damn thing get on etc etc

    With many tyres such as the Veloflexes and the Thailand "Italians" its easy. With Continental nylon tyres (all current models except the Olympic) its much easier said than done. Conti tyres with all the stretching in the world NEVER go on without stuggle. On some rims such as old school Mavics its even harder!

  • I did the opposite. Stretched the fecker with my ape like hands. Came to the opposite end to find excess tyre. Piss.

    Never experienced that! Can't even imagine that with Conti nylons.. With Veloflex.. perhaps.. But when stretched out on a rim before mounting they don't really cry for much pulling.. in fact too much pulling could ruin them..

  • Excess tyre is an exageration. But it was definitey far less taught at the end. When it lost pressure (due to poor extender installation). I thought I'd screwed the tyre, yes.

  • Conti Gatorskin == very hard to get on first time. Stretching for 3 days and cursing helps.

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Tubs

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