Tips on Lacing Mavic Straight Pull wheels, Just did a Cosmos rear PITA
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  1. #1
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    Tips on Lacing Mavic Straight Pull wheels, Just did a Cosmos rear PITA

    So I just laced up an old Mavic Cosmos. Took a while because the stupid bladed ends kept falling out of the hub shell. Used another Mavic as a guide.
    So here's the questions:
    1. Start with Inside slots first?
    2. Do one side at a time or alternate
    3. Replacing Hex Nipples(Mavic ABS) with standard Nipples or only use ABS?
    4. Best tool for reaching Hex Nipples inside rim. My Park 3-Way was a tight fit.

    I had a hard time getting even tension, so ended up with more Radial error than I wish.
    I guess I would prefer the straight pull hubs where the spoke is threaded through a hole in the hub shell. The Cosmos have heads with a bladed area just below the slides into the slot. So I tried to turn each spoke after installing so that it would not fall out.

    Anyone else have experience building Mavic wheels?

  2. #2
    'brifter' is a lame word.
    Reputation: cxwrench's Avatar
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    As you lace the wheel turn each nipple onto each spoke EXACTLY the same number of turns. As you add tension increase it EXACTLY the same amount on each spoke til you're at 50% tension or so. Makes a huge difference in how frustrating or not the build will be.
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  3. #3
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    Quote Originally Posted by cxwrench View Post
    As you lace the wheel turn each nipple onto each spoke EXACTLY the same number of turns. As you add tension increase it EXACTLY the same amount on each spoke til you're at 50% tension or so. Makes a huge difference in how frustrating or not the build will be.
    ^this^ Starting with each spoke threaded the same amount goes a long way to easily achieving equal final tension. Back in the day it was typical to use the same length spokes on both sides of a rear wheel. You first turned each nipple the same amount, and then added 4 turns to each drive side spoke. Gave you pretty close to the correct dish.

  4. #4
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    I think you guys missed my point. I know how to tension wheels. The isse with the Mavics is that you need to get enough tension on all the spokes as you go so that the spokes don't come out of the slots in the hub shell. 2nd was wondering about best pattern. Start with inside outside. One side at a time or do in quarters. Since these are a bit different from standard hub shells.

  5. #5
    Cleavage Of The Tetons
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    With standard spokes, I always threaded the nipple to the end of the threads (using my thumb as a guide). If the spokes were sized correctly, this generally was ‘just right’, in terms of pre-tensioning the wheel.
    Just a thought.
    I have built around 700 wheels with this technique, works for me.

    With the straight pull, you could lace 4-8 (12, 3, 6, 9, o’clock) to give it some structure, and then lace in the others from there.

  6. #6
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    I rebuild an old Cosmos, years ago. To prevent the spokes from falling out of the hub, I loosened them all just a little, and then taped the new rim to the old one, and then proceeded to move them over, one by one. The original rim was just a 28 hole Open Pro. I replaced that rim with a Sun M19 tubular rim that had the exact same ERD.
    If your opinion differs from mine, ..........Too bad.
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