I would love to know what has been successful for
2012 KH29 + Schlumpf and
2012 KH36 + Schlumpf
3 cross spoke lengths on their standard rims.
My 282mm Spokes didnt create my 29er muni recently.
282.36mm as per this calculator did not help my Kh29 build… 282mm are at least 5mm too long. Hence a list everyone can benefit from no?
I cant even find accurate information on spokes for a KH26? is it 260mm for a FR rim and Moment hub?
Are 362mm’s going to fit my future 36 KH Guni build as suggested on UDC NZ ?
What calculator up to date is more accurate or better than a successful wheel build?
I gave up on calculators long ago. My last Build, my 700c Guni i ended up calculating the spoke length manually with out the many fancy programs. Collecting rim data can be hard and working out differences between when hubs slightly varied in what years creates more chance of incorrect spoke length with calculators.
I dont like wasting spokes that dont fit and thought a LIST of wheel builds many of us could make use of in the future. Because there isnt one i could find and very limited information on the topic.
Maybe i am going about this backwards. But if someone with a built wheel can share their spoke length i will believe them long before a calculator with my possible wrong data input.
If the calculators are off by that much it sounds like you aren’t measuring things correctly. I have run into enough variation in erd’s to warrant measuring rather than trusting a database. The last set I built had an erd that was a little more than 2mm’s shorter than published. Still if I had gone with the provided number my spokes would only have been a mm too long, and probably still buildable.
If you don’t trust a manufacturer’s supplied rim and hub measurements, why would you trust random people’s supplied spoke measurements? And taking a whole wheel at a time just multiplies the chances for mistakes - was it really that exact make and model of rim, of hub? Were those spokes the perfect length, or just close enough to satisfy that builder?
Use a calculator. The calculations won’t be wrong. Make the measurements yourself if you don’t trust the supplied numbers.
the UDC UK calculator is great but for exemple it has a different ERD for Dominator2 29" rim than in the rim description itself, and spoke calculator doesn’t describe the type of nipples to be used or what spoke lengh for a different nipple lengh
I just take my hub and rim to my LBS and let the guy there measure everything. Then I can be absolutely sure that I’m getting the right spokes and nipples.
spokecalculator.tk
has fundamental different formula, more precise than all other calculators
except for DT’s - but without subtractions for their own specific nipples
How is it fundamentally different? Aside from the lack of variables for offset I can’t see any immediate difference. With the advent of hub mounted rotors offset should be considered.
Also, it isn’t clear where the erd should be measured. The diagram looks like the indicators for erd land about at the nipple seat. Most of the time you want the spoke to end near the bottom of the slot, is this somehow taken into account?
Data still seems incorrectly stated everywhere to what I gather. I must be doing something wrong when I lace a rim because my spokes are always shorter than what I read everywhere. More likely im doing something weird I know but it would have been nice to develop an accurate list of wheel spoke lengths.
I just measured my standard kh36 09 and the spokes are the same at what unicycle.co.nz lists for use with a schlumpf!!
On kh website for memory a 36er has 371mm I think it said and really looking at my standard factory laced nimbus rim the hub would need to be so tiny. Basically impossible. I say 3 cross is 272mm ideally for my kh29er. Not approx 282mm like stated everywhere
Maybe everyone rolling 36er guni gets there hub laced at shops and dont really see my frustrations using calculators, trying to measure hard to measure rims and hubs.
Can I ask schlumpfing a kh36, are the spokes required 35_mm something?
Who can calc what I need for a 2012 nimbus 36 rim and the older schlumpf, only a year or two old. The Non bearing protected model?
From what I gather using pre loaded calculators I keep getting 362 or similar. That’s want my moment hub has installed…
Are you measuring and cutting your own spokes? If so, perhaps you are not measuring them the standard way. I’ve never tried to measure spokes and haven’t needed to so far. I’ve used the standard calculators, ordered the spokes at the calculated length (perhaps rounded one way or the other a bit) and my builds have always come out fine. I haven’t built a Schlumpf wheel but I wouldn’t imagine I would change anything.
My KH29 47mm rim laced 3x to a Nimbus 36h ISIS hub used 290mm spokes as recommended by the UDC.uk calculator.
I am sure you all know the UDC spoke calculator, if you are using standard unicycle hubs and rims then it is easy. It is less good for asymmetrical wheels with discs as you need to do the calculation twice.
The other problem with it is that Kris has tweaked his rims over the years and put in different offsets for the nipples. This can easily make 2 or 3 mm difference in ERD, in some cases as much as 5mm. This is why I would always say use the ERD figures as a guide only, check them for yourself (instructions are below the calculator).
In the office we have a useful table printed out and stuck to one of the doors. Thought you guys would find it useful, so is attached. It is matrix of all the rims and hubs we have and the spoke lengths.
Thanks Roger, I think this helps and I didn’t think of spoke hole offsets…
I never have and wouldn’t like to measure cut and tread spokes. I have been buying DT’s and forever 5+mm too long to be useful.
Measuring rims and hubs accurately if not the easiest task and now offset spoke holes there is alot to consider and I see how easy to be out 5mm is.
If my kh 36er is about 362mm not the proposed 368. I can’t imagine the schlumpf in place of a moment will pull up on 360mm spokes as per udc matrix…? I dont see there is offset holes on the stealth 2 rim either. Could be wrong with that though. Unless the difference between a stealth and stealth 2 is a less deep rim similar to the difference between the flange holes with moment and schlumpf?
When I get my 2012 36er I will measure up for fitting schlumpf and confirm.
I can confirm dt spokes at 272mm are ideal 3x on Kris’s latest 29 offset spoke rim (from 2012 disc frame model) with the newest bearing protected model schlumpf.
It appears laced correctly. My second schlumpf arrived yesterday pre laced to a nimbus 29 rim and the lacing pattern is the same, only I crossed mine uniformly. They mixed there’s oddly like shoes laces crossing over and under in random order…
On a 36", the spoke calculator will be relative accurate as there is no offset on the 36" rims.
I still say, it is worth checking them out by measuring.
As a note about different spokes being different figures if you measure the rim using the spokes/nipples you intend use, the output from the spoke calculator will be correct. This is useful to do, even if you actually have the spokes and need to use them as it will tell you how far into the nipple you will be going to get the wheel at the correct tension.
I agree with Roger about using the info in the table to double check, and measuring is the only way to know for sure. It isn’t difficult.
As expensive as spokes have become it is worth your time to get it right. You can pick up a cheap digital vernier caliper for $15usd for the hub. I use a rubber band to pull spokes together when I measure the erd. It makes it easy to measure the gap with a tape.