All Discussions Tagged 'crash' - Cyclocross Magazine2024-03-28T09:23:18Zhttps://cowbell.cxmagazine.com/forum/topic/listForTag?tag=crash&feed=yes&xn_auth=noRolled my tubies at CX practice - need advicetag:cowbell.cxmagazine.com,2011-09-22:1198434:Topic:1093672011-09-22T18:06:07.846ZRocket88https://cowbell.cxmagazine.com/profile/Rocket88
<p>I rolled 2 tubulars at CX practice last night (separate events) - obviously I need advice on gluing or tire pressures.</p>
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<p>I've attached pictures of the tires where they let go. The failure modes look different: the front (first two pics) the glue stayed on the rim. The front had the used tire on it. On the rear (new tire), the glue stayed on the base tape. The parts of the rear tire base tape that look unglued are just where the glue stayed on the rim (mostly on the…</p>
<p>I rolled 2 tubulars at CX practice last night (separate events) - obviously I need advice on gluing or tire pressures.</p>
<p> </p>
<p>I've attached pictures of the tires where they let go. The failure modes look different: the front (first two pics) the glue stayed on the rim. The front had the used tire on it. On the rear (new tire), the glue stayed on the base tape. The parts of the rear tire base tape that look unglued are just where the glue stayed on the rim (mostly on the edges)</p>
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<p>This morning I tested the tires by hand with no pressure in them - the glue (in the areas that didn't fail) feels very solid.</p>
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<p>Gluing method: the wheels were used. Prior to gluing up tires I cleaned all old glue off the rim and whatever I could physically get off the used tire's base tape. 2 thin layers of glue with brush on rim, 2 on the base tape (1 on the used tire). Lots of drying time between coats. Then one last layer on the rim with 20mins drying prior to tire mounting.</p>
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<p>Specifics</p>
<p>Wheels: Mavic Ksyrium ES (used, cleaned prior to gluing with 3M solvent)</p>
<p>Glue: Vittoria Mastik One</p>
<p>Rim Cleaner: 3M General Purpose Adhesive Cleaner (3M 051135-08984)</p>
<p>Tires: Challenge Fangos, 34c front (used), 32c rear (new)</p>
<p>PSI: 36 rear, 34 front (set with an accurate gauge)</p>
<p>Rider weight: 200 lbs</p>
<p>Course conditions: dry, mixed; rear rolled on a grass-asphalt transition, front on packed dirt</p>
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<p>Too much glue? Not enough pressure? Rough up the rim glue surface? Different tires or glue??</p>
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<p>Thanks - Rocket88</p>