MegaSack DRAW - This year's winner is user - rgwb
We will be in touch
So, here is the deal:
I thought I might try my hand at building a set of wheels. I stumbled upon at set of DT Swiss spline x1600 wheels at a very reasonable 50 pounds. The rear rim is knackered, so it will definitely have to go, but the front one is straight. I want to use the hubs as a basis for a new build, ideally using some wider rims, such as the DT Swiss XM481 or XM421. Tried to use the Spoke Calculator on the DT Swiss website, but I am not sure which model hubs I have. I guess it is some sort of 240 derivatives/ early version, they have the star ratchet and are straight pull, but that is as far as I got. Any suggestions? The only information on the hubs is the DT Swiss name, and the word "Spline". I have included a few pictures I blatantly stole off the Interwebs, but this is what they look like.
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Additionally, the rear hub comes with QR adapters, but the front wheel does not. There seems to be some divided opinion about whether the 15mm front hub is convertible, does anybody know if this is the case?
Thanks!
Dunno about the spokes, but I have found out from here that all 15mm hubs are convertible using the Nukeproof 15mm - 9mm converter (or similar). It just slots into the hub in place of the axle and the skewer goes through.
I'd try and find a rim with the same diameter as the current one (or close enough). You can then just tape it the wheel and move the spokes over one by one. Cheap and easy.
If you have some digital calipers you can measure the hub dimensions and enter them manually on the DT Swiss calculator. The question mark by each field shows you a diagram of what to measure.
Hey, that Nukeproof axle is actually pretty clever! I might just buy one of those...
The rims are just 19 mm wide, and I really want to try something wider. And when the rims get wider, they usually also become "deeper"
Sure, I could measure the hub, but my calipers were lent to a mate who has yet to return them.
https://spokes-calculator.dtswiss.com/en/calculator
Another way is to look at the small number of straightpull non-boost hubs listed on this, get a ruler and check the main measurements they list to see if you can get a match.
If you're changing the rim, you may as well de-lace it which would make measurement easier.
If they're DT rims, then it's a good bet that any replacement DT rim won't be too far off diameter-wise. Even a couple of mill won't make much difference.
I'd just buy a rim, tape it to the old one and swap over. This technique means you don't have to worry about lacing the spokes, just tightening and trueing.
I don't suppose the old rims have any identifying labels on, as knowing the ERD would be useful.
The ERD is not listed on the wheel, and it seems the rim is pretty obscure...
I can't find the information on the DT Swiss website, the only thing i have is this sticker:
[img] 
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You can measure every dimension you need with a ruler. And calipers come in non-digital varieties accurate to 0.1mm.
The [url= https://www.sheldonbrown.com/rinard/spocalc.htm ]Sheldon Brown/ Spocalc[/url] site has instructions on how to measure an ERD and also how to measure a hub (with a ruler). In the case of straight-pull, spokes are measured from the end of the threads to where it widens out, so I guess for the hub you need to measure the "flange" diameter as the diameter of the circle made up by the bits of the spoke holes where they start to widen out. Flange offset would be different for leading and trailing spokes, but if you took an average that would be OK. The important thing to measure accurately is rim ERD.
Hmmm... That Nukeproof axle is sold out on Chainreaction.
Does anybody know who else stocks them?
Mavic do a push in 15mm to qr adaptor too
There's a Ritchey one on [url= http://www.tredz.co.uk/.Ritchey-Conversion-Kit-15mm-to-9mm-QR-_92867.htm ]Tredz[/url]
I've ordered some adapters from JRA for £5 - if you can wait a day or 2 I'll see if they'll do the job and post up here.
As said, if you're going to rebuild the wheel, I'd take it apart and measure the ERD and try to find a similar-sized replacement as sourcing replacement straight-pull spokes might be more of a challenge IME (usually from Germany). A millimetre or 2 difference in ERD won't be a problem either.
Dovebiker, sounds like a good idea!
Still, I would really like to know the model number of the hubs, it would be useful to know in case I need spares.
I have tried to contact my local DT Swiss distributor to no avail.