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Old 2010-11-12, 09:11 PM   #1
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Geared 29 set-up questions


For those of you who ride geared 29ers, I would like to build up a good 29" wheelset with a Schlumpf geared hub. What rim and spokeset did you use and why. This unicycle would be used for hard surfaced roads, dirt roads and singletrack trail. I'd like the rim to be able to take anything from a 2.0 Big Apple to a 2.5 tire like a Kenda Claw or equivalent...no need to go wider for me.

I'd also like to know what is the best source to buy the hub. I'd prefer a KH product but am unsure of where to get them. The link I found did not work for me. Thanks.

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Old 2010-11-15, 02:44 AM   #2
Juan M
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Hi Carey,
try below.

I build my own wheels so i ordered for my KH29 the KH XC 29 rim or if you like more aggressive riding then order the KH Freeride. XC is great rim unless you are planning big drops.
Spokes just tell them that you want them for whatever rim and with Schlumpf hub - you could either call or email them referring to your order number.
These guys are extremely helpful.


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Old 2010-11-15, 03:45 AM   #3
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My New Schlumpf 29er is here!

Hi Carey. I just picked up my new KH Schlumpf wheel with a blue 38 mm XC Kris Holm rim. After riding it for an hour I realize I made the right choice - a 29er in high gear is as fast as I want to go on a unicycle

My hub came from a Vancouver BC shop (thanks An'So') and since all the XC rims are sold out in North America, Kris kindly provided a blue prototype of his XC rim (thanks Kris). I run a Big Apple 28 x 2.35 for both road riding and hard packed trails.

After an hour of riding, shifting up is about 90% successful, while downshifting results in about 50% UPDs. I'm sure that will improve with practice. Enjoy you new 29er guni - they're great!

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Old 2010-11-15, 04:33 AM   #4
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The XC rims have been sold out here for over 6 months now. I wonder why UDC hasn't restocked the 36 hold XC KH 29er rim???

I would also recommend that rim over the freeride rim. That was my choice, and I used it for road riding, XC, and some tough singletrack here in CO.

There is probably an equivalent nimbus rim.

As far as spokes, 14g 282mm (for the xc rim). The key to a good wheelbuild is either being an expert yourself or knowing the best wheelbuilder in your area. Get a good relationship with your local bike shop and if the wheelbuild you get there starts having issues they will usually true it and fix it up for free.

You can get the kh/schlumpf hub from http://schlumpf.ch/hp/schlumpf/schlumpf_engl.htm
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Old 2010-11-15, 06:47 PM   #5
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Thanks friends! I too think that 1.5x29er is plenty fast for me. This is something I would like to buy...may wait until the rims are available before I jump. I like the idea of the XC, with dual hole cranks, and the muni hub. My son could build the wheel for me. I figure I could just replace the current wheel on my KH29 Freeride and be ready to go. I assume the bearing outside diameters are the same?

Is buying direct a good plan and how is the wait/shipping time once you commit to buy the hub? Thanks again for the help and advice.


Last edited by Carey; 2010-11-15 at 06:49 PM.
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Old 2010-11-15, 07:53 PM   #6
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I think that something like the Salsa Gordo would be a good rim choice if you don't run a rim brake.

The KH/Schlump hub was designed to work with standard MUni frames, It will fit in your KH29 frame without any problems if the frame is from 2008 or later, if it is a older frame you just need to shave away some material from the inner lip of your bearing holder.

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Old 2010-11-16, 11:04 AM   #7
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Originally Posted by Carey View Post

I'd also like to know what is the best source to buy the hub. I'd prefer a KH product but am unsure of where to get them. The link I found did not work for me. Thanks.

I went with an earlier KH 29er rim that does not have the cutout holes. It was one I had lying around from ages back.

I know another geared 29er rider who had lots of problems with punctures on their cutout rim. I think the decrease in potential punctures is worth the extra weight of not having cutouts, although whether you can source a rim similiar to this now may be moot.

Regards hub sources, I don't believe Unicycle.com US deal in them at present (although you can always ask).

We do stock them at Unicycle.com NZ and a few other UDC's have them too (eg the UK). With the current exchange rate those two sources may be worth a look. Check out
http://www.unicycle.co.nz/shop/unicy...m-Schlumpf-Hub (approx cost about $1490 USD including delivery)

http://www.unicycle.uk.com/kris-holm...le-hub-4.html/ (approx cost $1330 USD plus delivery)

You can go direct to Florian, although it can sometimes be a wait of several months or more before the hub arrives(he does seem to be getting faster at turning orders around though). To give you a rough idea, our previous orders have taken anywhere from around a month to about six months to come in.

Another option to consider is buying second hand. I know a rider who had their hub replaced under warranty and has done virtually no riding on their new hub and are now selling it due to it not getting enough use to justify having it. If you are interested, check out this thread:

Note that $1500 NZ is about $1160 USD. Last time I did a postage quote on a Schlumpf hub to the US it came out at about $80 USD, so you could likely get an almost new hub for around $1240 delivered.
-Peter Bier
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geared, mumpitz, questions, setup

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