On Monday, January 22, 2018 at 2:25:46 PM UTC-8, Joerg wrote:
On 2018-01-21 22:08, Tosspot wrote:
On 21/01/18 22:18, Gregory Sutter wrote:
On 2018-01-20, Joerg wrote:
Are 700c 25mm road bike tires ok on these or is that pushing it? The lip
to lip dimension inside is 19mm. Says 28 but maybe someone knows whether
25mm would fit.

http://www.weinmanntek.com/Products/MTB/ZAC19.htm

Reason I ask is because I could potentially get a nice rear wheel with
12ga spokes. My current one breaks spokes all the time plus the rim will
soon be up anyhow.

Not recommended. Use a 28mm or wider tire on a 19mm rim.
http://www.sheldonbrown.com/tire-sizing.html#width


Uh-oh, looks close.


Additionally, on a frame/fork that can only accept 25mm or smaller
tires, your 25mm tire may end up too wide to fit when mounted on a
wide rim, so be careful.

You might look for wheels with double-butted spokes; they will be
stronger and you'll break fewer spokes!


Problem is, I can't exceed 130mm between the dropouts for the wheel and
even that's a stretch (the frame is 126mm). This limits the selection of
ready-to-go wheels.

I does? The non-disc road standard is still 130mm. There are tons of wheels out there for 130mm spaced frames, and re-spacing your frame from 126mm to 130mm is a breeze, assuming it is needed.

I've never seen a road wheel with 12g spokes -- not on a sport frame. You're trying to use a mid-fi club racer for a cargo bike. You should get a cargo bike or a gravel bike.

-- Jay Beattie.