Bat56

I assume I can email the manufacturers and wait, but it seems like the numbers are out there and I should be able to find them.

I am am interested in the surly ultra new front disc hub and the all city front disc hub. Any of you have sources that can supply what I need?

HillRider

A digital or dial caliper will give you all the dimensions you need.

jlaw

+1 digital calipers

Measure them yourself several times to verify consistency and then use 2 different spoke length calculators to see if you get the same result. Finding out you bought the wrong length spokes would be very frustrating.

Here are a couple wheel building references:

https://www.parktool.com/blog/calvin...e-rim-diameter

Spoke Calculator: https://kstoerz.com/freespoke/

WizardOfBoz

Calipers work as long as you already have the hubs to measure. You need the flange dimensions (no. of holes, diameter of the spoke holes around the axle, diameter of the hole itself, flange spacing from the axle nut. And the rim diameter. And maybe other stuff. If you don't have the hubs yet, the mfr should be able to supply all these dimensions. Write, saying "I'm building wheels with your [hubs rims], model number xxxx. Can you send me the relevant dimensions for this product?".

Read Sheldon Brown's notes on wheel building, if not one of the basic books. I could be wrong, but your question seems to be a little bit like you've not done your homework and are asking for a tutorial here. Read up, ask the mfrs, use the online spoke-length computers and talk to your spoke supplier. Then order stuff go for it.

So, do your homework, and good luck.

I'm building my first wheelset now, and I've read three books and have purchased a bunch of equipment to do this (truing stand, dish gauge, spoke tension meter). That's me. I like tools. But folks have successfully built wheels using the bike for a truing stand, a home-made dishing gauge from 2x2 lumber, and have tested the spoke tension using the pitch of the plucked spoke.

79pmooney

+1 on calipers and measuring the hubs yourself. Production runs change. Employees in customer service change. The information they are working from doesn't always change and if it does, you might have in your hands an older model. (Rims also change. Measure those ERDs yourself or have the shop do it (if you trust them).

Ben

dsaul

Everything you need to do spoke length calculations can be found at these locations. It wasn't that hard to find.

https://allcitycycles.com/parts/go_d...vil_front_disc
https://surlybikes.com/info_hole/spe...lculation_info

Bat56

I’m not asking for a tutorial. The overwhelming response was to measure for myself, which is what I will do. It definitely seems like safest route and confirms my findings that reliable info is not published.

Bat56

Because you didn’t find it.

That All-City link is good. I don’t know how I missed that.

As for the Surly info, you must be punking me because I don’t think the ultra new even existed when that info was compiled. But like you said, it’s not that hard, so i’m thinking you didn’t try too hard, and are mostly interested in implying that I didn’t either.

Bat56

Awesome. Thank you, that’s how I’ll do it.

veganbikes

I am all for measuring by hand for some of the odd older stuff but QBP has a great spoke length calculator and Surly and All City are both QBP brands and so far everything has been accurate for me. I have certainly in the past double checked measurements against other calculators but now just go QBP because it has been accurate.
https://online2.qbp.com/spokecalculator/

Certainly everyone is right and things can change here and there but usually if anything very small changes and probably are unlikely to effect the spoke length enough to worry a whole lot.

WizardOfBoz

Meant no offense, my response was predicated on my interpretation of your original post.

I think that there's a lot of good data on stuff on the interweb. But no harm in being sure: measure twice and cut once. Also, checking with a caliper avoids gross errors.

My brother has a very slow, particular contractor doing work on his house. The guy does great work, but my bro swears his motto is "measure thrice, cut nonce".

dsaul

Quote from the surly website.

"Ultra New hubs look much like their predecessors. In fact, the hub shells have not changed at all"

You're welcome

Bat56

This is exactly what I was looking for. Thank you.

Bat56

Putting 2 and 2 together. I like that and it is exactly why I asked the question here. I appreciate all the answers that were provided without pretense.

Bat56

That’s been my wheel-building motto up until now. I was just going to order my parts from one place and have them provide the spokes based on their measurements but I want to do it all from the ground up. (That, and I am irrationally and unnecessarily frugal, and I can’t one-stop shop and AND get the best prices.) This thread is the last stop before putting pen to paper and placing my orders.

veganbikes

No worries, I use the QBP calculator all the time so I am happy to get other people on it as well. I use the All City New Sheriff SLs and am quite happy with them and had considered the Surly hubs for a fixed gear disc brake equipped bike that never got built sadly.

Jeff Wills

FWIW: if you have Excel, you can download the Spocalc spreadsheet from the Sheldon Brown site. It has a bunch of premeasured hubs and rims and you can input your own measurements. I've used it for ages and it's never done me wrong.

https://www.sheldonbrown.com/rinard/spocalc.htm