Wheelbuilding / Wheel Building / Wheel build help

why not sizing up to 294?

It's better to be a touch short than too long and run out of threads.

allright, thanks!

i'd like to re-use the spokes

Don't, they'll be stretched and fatigued.

Cyclebasket sell ACI DB spokes for £0.21 each.

Don't

You're disagreeing with Jobst* here. Not that I haven't done so myself on occasion, but you'd better be absolutely sure of your ground.

*http://www.sheldonbrown.com/brandt/reusing-spokes.html

It's a polo wheel anyway, they'll break from impacts and abuse before fatigue.

SJS sell DT Swiss Comp in most sizes including 293 mm.

http://www.sjscycles.co.uk/14-15g-dt-competition-double-butted-spoke-with-12mm-brass-nipple-pack-of-6-prod815/

i'm located in germany so i need a german shop :/

rosebikes?

Don't think so I checked them first as they're cheaper.

Bah, I've reused spokes and it was fine

(36 spoke wheel, not abuse, I'm not heavy and of course no massive rub marks)

Question: Spoke calc tells me I need 293.5 mm
Only length available for cheaps (it's for the Miche winter wheels once the salt comes out so don't feel like spending a fortune) is 294.

Is 0.5 really a big issue? The consensus is to round down I noticed. It's for Mavic Open Sport rims.

Has anyone tried lacing any second spoke, If someone had a 36h laced front wheel could the lace it again with 18 spokes?

The offset between the left and right hub drillings would be wrong unless you used an 18H hub, and if your rim has its eyelets off-centre or angled, the rim's not suitable for skip-lacing.

Ok thanks

I recently to attempted to service my slightly grindy sounding Campagnolo 8 speed hub, and managed to essentially destory the assembly. It looks like I need to replace the 8 speed hub, which is annoying and expensive.

I'd like to keep using the 90s era 36h Melbourne 56 rim on a future build; so my noob question is, can I switch out the damaged 8 speed hub with a track or flip flop hub?

Of course, but you will need to get new spokes :)

The length may not match as the hub will have a different height/width, and a single speed hub won't have offset, so the spokes are the same length and right.

Perhaps you get lucky and you can re-use half of the spokes, but as there's offset on the 8-speed and not on the single speed unlikely you can re-use all.

Thanks, I figured I'd need new spokes. The issue now is: is the cost of hub(s), spokes, and labour, more or less cost effective than selling these and using that towards a new wheel set. Decisions.

You're looking £100-150 for not cheap n nasty fixed wheels whatever you do (V-sprint, cycleclinic, (both uk built) halo/miche/planet x (if they still use Novatec) in sale (machine built)

However, if you can get a used hub on EvilBay it's only labour (unless the spokes are that worn the shop advices against rebuilding) :)

SJS has Alpina spokes that are supposed to be a good budget bet, Sapim/DT Swiss come recommended but never are cheap.

SJS has Alpina spokes

Only in gross boxes, AFAIK. Cyclebasket is the usual source for ACI/Alpina spokes.

So, spoke calculators: Is there one calculator to rule them all, or really, you can't fully trust the ones with pre-loaded rims/hubs and you better measure yourself?

I'm getting a difference between http://www.prowheelbuilder.com/spokelengthcalculator and https://leonard.io/edd/ for the same rim and hubs. (Miche primato hub, front, Mavic Open sport erd 606, 32 spokes, 3 cross)

Prowheelbuilder: Left spoke length: 294.7 / Right spoke length: 294.7
Leonard: Spoke length left 293.5 mm / Spoke length right 293.5 mm

So that's a 1.2 mm difference...I've no idea who is right and have to get spokes :)

Also did: http://www.wheelpro.co.uk/spokecalc/
293.3
DT Swiss
293.5
Sapim, bit more awkward as you need to input rim diameter with value 1.5
294.5

I've used Edd and DT Swiss before, and they are usually < 1mm difference, and have not had any issues. But caveat emptor

edit: @JWestland

So me being the idiot that I am comically got the bin bag I was carrying jammed in my front wheel whilst rolling along to the communial dumpster area. It was a slow speed affair luckily.

Anyways, upon unjamming, wheel is no longer true. Seems that one of the spokes managed to lose a large amount of tension. Probably 3 full nipple turns worth. Could a nipple really unwind this much from previously described event? Or has the spoke stretched and thus ready to explode? I checked the hub flange which doesn't show any damage.

For reference, 20 spoke wheel, cx rays, radial.

CSB. Spotting Pete Doherty was when my umbrella went into my wheel.

If it's owt like getting a polo ball twatted at it they seem to pull through the threads of the nipple but work alright when retightened, although I've never studied this closely.