Spoke length help?

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  • Spoke length help?
  • mcmoonter
    Member

    I fancy trying to build a set of wheels, I’ve never attempted it before.

    I’ve got a pair of 36h Hope XC disc hubs and I want to build them into a pair of Mavic A319 700c rims, spokes crossing thrice front and rear. They will be for road touring.

    What would the spoke length be and where best to buy the spokes online?

    xiphon
    Member

    There are several spoke calculators online.

    They will tell you the info you need to calculate – bit of Googling is required.

    shedfull
    Member

    This one‘s good and has your hubs and rims in the database. Cross check everything, though – measure the hub and rim and compare with the dimensions on the calculator then use a different calculator (try DT Swiss, for example) and enter your measurements in that, too.

    Always cross check spoke calculators. I paid for a cycling Android app with a spoke calculator in it and it was plain wrong, by about 5mm, on the first set of wheels I used it on.

    EDIT: sorry – forgot the link!

    xiphon
    Member

    Also, Sheldon Brown’s guide to wheelbuilding is excellent. Still rolling on my first set I built – on the DH bike too!

    cynic-al
    Member

    sdeals is cheap for ACI spokes.

    Premier Icon takisawa2
    Subscriber

    Based on an ERD of 601mm…

    DT…

    IMAG0093 by pten2106, on Flickr

    Spokecalc…

    IMAG0095 by pten2106, on Flickr

    But rather than list the info needed mavic list the ERTD, (thats different. ) 😐

    mcmoonter
    Member

    Cheers guys.

    mcmoonter
    Member

    Ok, I cross checked the web spoke calculators against the hub dimensions and they come out at takisawa2’s calculations on the DT site.

    So, I’ll need 18 x (287, 290, 288, 289) spokes. Numpty question, given that there is ‘only’ 3mm between the longest and shortest spokes could I buy 72 spokes @ 290mm?

    EDIT, they dont appear to be common sizes.

    cynic-al
    Member

    should work fine Pete. You want me to build BTW?

    takisawa look up “ctrl-print-screen” 😀

    mcmoonter
    Member

    should work fine Pete. You want me to build BTW?

    I’m keen to give it a go Al, I’ve never tried wheelbuilding before. I watched a couple of youtube vids, I have an ancient cast iron wheelbuilding jig I’ve been dying to use. If I screw up, I’ll give you a shout.

    Premier Icon takisawa2
    Subscriber

    Al, just being lazy mate. 🙂
    Grabbing a pic & uploading to Flickr is a couple of taps on my phone.

    McMoonter…grind up a nipple driver, & if you haven’t already, download the wheelpro pdf. I’ve done so few now & all have been spot on. I’d buy 36- 288’s & 36- 290’s.

    mcmoonter
    Member

    cynic-al – Member
    sdeals is cheap for ACI spokes.

    Al, would ACI spokes be your preference over DT Swiss?

    72 spokes = £20.16 seems reasonable for ACIs.

    McMoonter…grind up a nipple driver, & if you haven’t already, download the wheelpro pdf. I’ve done so few now & all have been spot on.

    I’ll do that. Thanks

    Premier Icon nickc
    Subscriber

    bit expensive, but really do consider a spoke driver. Makes life loads easier.

    mcmoonter
    Member

    but really do consider a spoke driver. Makes life loads easier.

    A quick google turned up this, anyone tried it?

    http://www.urbanvelo.org/issue26/p88-89.html

    pdw
    Member

    Roger Musson’s e-book is well worth it. He has his own DIY nipple driver made out of a screwdriver with a point in the middle. This causes the screwdriver to disengage when the spoke gets to a certain depth which makes it very quick to get the wheel laced to an even starting point. He talks about bending the blade so that you get a handle but I just left the screwdriver straight and it worked fine.

    I made mine with a £1 B&Q screwdriver and a few minutes with an angle grinder.

    Premier Icon billyboy
    Subscriber

    Mavic have a fairly simple spoke calculator which will know the Mavic rim dimensions and show you what measurements you need from the hub to fill out their calculatorizations

    Premier Icon billyboy
    Subscriber

    Another spoke is a good spoke driver/ nipple applicator. Just feed the nipple on the wrong way and push it thru the hole onto the next spoke

    cynic-al
    Member

    What billyboy said. Proper tools are nice but a screwdriver works fine.

    Pete ACI are AFAIK as good as DT. ALOT of guff is typed about spoke brands.

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