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  1. #1
    Senior Member Spld cyclist's Avatar
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    Spoke tension - Weinmann RM19?

    This is the latest in a series of wheels I am trying to tension correctly. I got a cheapy 27-inch 36-spoke rear wheel with a Weinmann RM19 rim (see here: http://www.weinmanntek.com/Products/CTB/RM19.htm and a mystery hub. It has 2.0 mm straight-gauge spokes.

    This was to replace a wheel on an older bike that I want to sell. I would feel guilty selling it with the wildly variable spoke tension it came with, but I'm also trying to practice this skill.

    So anyway, what drive-side spoke tension should I be shooting for? I have a Park tool tensiometer.

    Thanks!

  2. #2
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    First check to see if the maker offers any guidance. If not, shoot for 95-105kpa right side tension, with the left being where it ends up when the wheel is dished correctly, (9ssually 50-65% of the right side tension). You have a lot of spoke there (36x 2.0mm) so there's no need to go for tension any higher than 100kpa or so, except to get the left side tension higher.
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  3. #3
    Senior Member mrrabbit's Avatar
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    Just built one 2 weeks ago on a 126mm rear hub for 6/7 speed freewheel use.

    Got the rear drive side up to about 107 KGF.

    =8-)

    It is not a bad rim to tell the truth...

    =8-)
    4000+ wheels built since 1984...

    Disclaimer:

    1. I do not claim to be an expert in bicycle mechanics despite my experience.
    2. I like anyone will comment in other areas.
    3. I do not own the preexisting concepts of DISH and ERD.
    4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
    5. My all time favorite book is:

    Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life

  4. #4
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    Quote Originally Posted by Spld cyclist View Post
    This is the latest in a series of wheels I am trying to tension correctly. I got a cheapy 27-inch 36-spoke rear wheel with a Weinmann RM19 rim (see here: http://www.weinmanntek.com/Products/CTB/RM19.htm and a mystery hub. It has 2.0 mm straight-gauge spokes.

    This was to replace a wheel on an older bike that I want to sell. I would feel guilty selling it with the wildly variable spoke tension it came with, but I'm also trying to practice this skill.

    So anyway, what drive-side spoke tension should I be shooting for? I have a Park tool tensiometer.

    Thanks!
    I generally think first of NDS tension.. I want to see at least 60 kgf (19 Park with 2.0's) left side. 27" wheels was my start in wheel building.. and you see a good deal of variation in how those old freewheels are set up for spacing (5-7 gear cogs). I've re-spaced rears to give minimum spacing needed on the DS to add all the spacing possible on the left... meaning of course the highest NDS tension possible for that dropout spacing. Usually you have to reset limit screws on the derailleur then.

    Lockwashers make good spacers for refinements chging out spacing at 2.5mm each.

  5. #5
    Senior Member Spld cyclist's Avatar
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    Thanks everyone!

    Mrrabbitt, I'm glad to hear it's not a bad rim. While I'm going to sell the bike, I still have something of a sentimental attachment to it and I didn't want to put something too junky on it. At the same time, it's not a particularly valuable bike that would justify putting a lot of money into it. It's a 1984 Schwinn Le Tour Luxe. It was my first decent bike, but I just don't use it anymore.

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