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Disc brake wheels , low spoke count

mattsccmmattsccm Posts: 555
edited March 2014 in Workshop
I fancy building myself a pair of wheels for my disc braked road bike. I am about 75kg and fairly easy on wheels. I have both 24 and 28 spoked rims. Am I pushing my luck a bit with discs? rumours abound about discs needing a higher spoke count.
Just to complicate, both sets are sprints. I have the rims and hubs so its just for the hell of it really but at the same time I don't want iffy wheels or damaged parts.

Posts

  • apreadingapreading Posts: 4,532
    The (well regarded as strong) Kinesis Crosslight Disc wheels are 28 spokes, so that should be OK - as long as you dont set the spokes up radially. The 24 may be pushing the limits of what is sensible but I am guessing should just about be OK.

    I think the key thing is the lacing of the spokes more than the actual spoke count: http://www.justridingalong.com/news/201 ... -patterns/

    People do run lower spoke counts and I havent heard of them dieing but personally I wouldnt want a 24 as presumably you would put it on the front and thats where most of the braking force will be. http://fernandoj.wordpress.com/2013/11/ ... clo-cross/
  • hypsterhypster Posts: 1,183
    The weight difference between 24 and 32 spokes is around 60g. Do you really want to swap security and reliability for such a small weight saving?

    That's the conclusion I always come to whenever I am planning wheels in a spreadsheet that I use for the purpose.
  • mattsccmmattsccm Posts: 555
    Nope. I just have those rims and matching disc hubs so it would be nice to build some. Less spoke looks nice as the silver seems to sparkle more
  • ugo.santaluciaugo.santalucia Posts: 25,689
    You can build the 28 at 3 cross (2 if the hubs have a big flange like the old XT) and they will be fine. 24 is a bit under, but you might be fine there too. Whatever you do, only build 2 or 3 cross for the 28 and 2 cross for the 24... don't use any other pattern
  • cyclecliniccycleclinic Posts: 6,865
    28H rims and hubs are best 3x I agree for disc brake builds. Shimano CX-75 hubs come in 28H. 24H disc brake hubs exist but no one in the U.K stocks them at present for after market builds at least I do not know anyone who does.
    http://www.thecycleclinic.co.uk -wheel building and other stuff.
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