Schlumpf hubs: general discussion

I was originally thinking a G26 would be the ultimate do-anything machine but I have been doing a lot of riding on the 36 lately trying to keep up to Nathan on his G36. I do OK ungeared but it would be nice to have longer cranks for the climbs then shift up for the flats and cruise.

Then I think about proper MUni rides where you need the smaller wheel for large sections but could still upshift for the easier bits.

I think what i really need is two hubs.

When I’m out on the trail with my G26er, in 1:1 it feels much like my good ol’ 24" KH workhorse (with the 65mm LM rim and all). It’s super maneuverable, nimble and can take on the tech sections like my 24" and even stands up well on drops, hops and jumps. But then, when I kick in the nitrous oxide, she takes off like a bat outta hell, and becomes a virtual 39er! For me, it’s the best of both worlds! :smiley:

What Tyre

Hey MuniAddict
What tyre are you running on your GMuni again?
Cheers

It depends on what riding you want to do. For me nowadays, I ride mostly 36er terrain, so clearly the G36 is my top unicycle. If you actually ride a muni more than a 36er, then your first guni should be 24 or 26. Affording two or more of these things is currently a pain - I wish they were cheaper.

If somehow I couldn’t have a G36 anymore, I would switch to bike, not ungeared 36 - that’s how good it is for me.

—Nathan

Maxxis Ardent love…

Hi Rob, unless MuniAddict has changed his tyre (correct me if I’m wrong Terry…) he’s running the 26 X 2.4" Maxxis Ardent (see above…). Great tyre, what I also run on my KH26ss, and used to run on my 26guni before my schlumpf migrated to my 36er.

[Start Turbo Threadjack]

I coincidently have a brand new 2.4" ardent for sale (surplus to my requirements, going cheap) if you are in the market for one…i’m selling my 26er downsizing the fleet, so the tyre won’t get used. PM if you’re interested, and we can easily work out a deal on the tyre. I’m currently based in Radelaide.

[EndTurbo Threadjack]

Cheers,

Dmac

I’m running the Ardent 2.4 w/folding bead. Super light but still very solid and high volume enough for hard tech and drops.
Here’s a recent pic from a local trail. :slight_smile:

I searched for this because I’m sure someone has asked before but I was wondering about the safety of using a Schlumpf hub in winter? I’m not worried about the cold or snow, but rather the salt and grime that covers the roads. I was wondering if anyone has ridden their Schlumpf all winter (I’m talking about real winter, not California winter) with or without any issues. Also, if anyone has asked Florian about this and gotten a response. I want to keep riding my Schlumpf all winter but its not worth ruining it to do so. Thanks guys!

Snow

I was riding my G29 in on a snow and ice covered track today with the white stuff falling on me today… was great :sunglasses:

There was no question of it being fun Alan :slight_smile:

You could use a light silicone spray to help protect the hub from the salt and grime. I do that whenever I am riding in super wed/muddy situations. It is also a good idea to keep a whole lot of fresh oil coursing through your hub. I flush mine out with new oil about every 3 months. If i was in your situation I would make it every month.

mark

Do you use the special oil from Florian?

The hardware (assembly bolts) have already started rusting on my hub from just light use in wet weather, and I wipe it down after use. A silicone spray might help, but if you’re riding in salt I’d be concerned about corrosion and would look at something that you apply to neutralize the salt; is there such a thing.

Maybe rinsing the wheel and hub after use, like you would if you used neoprene in chlorinated water.

I have also switched from 137’s to 150’s to gain more leverage for climbing, which makes reaching the buttons a bit more trouble, but it rides nicer overall for muni. Crank clearance is tight, hub clearance is tight, I am considering a Nimbus frame to improve clearances.

Scott - I hate to tell you, but I would never ride my Schlumpf through salty slush or on salted, wet roadways. I’ve corroded too many bikes that way, and value that little Swiss hub way too highly.

On those cold, dry-road days, it’s probably fine, but even then the dried salt on the roads gets kind powdered on there, so probably a wipe-down after riding.

If you do ride in the wet salty stuff, the other advice given here is your best shot: silicone spray, wash (or at least wipe well) after each outing, cycling in new oil more often than usual.

I saw an increase in corrosion on my brake and seatpost clamp from riding on salty roads last winter. My Schlumpf didn’t seem affected, but maybe I didn’t notice. About a month ago when I removed my cranks I found corrosion on the bearing housings. I’m not sure if that was left over from the winter. But it was all on the surface and cleaned up ok.

I respect Steveyo’s decision not to use his expensive toy it in the winter, but I take the other view… it’s such an expensive toy, I can’t afford not to use it!

Plus my biggest ride is a 24" and last winter I had to get out and ride sometime. Riding the neighborhood streets was the only option, and without a Schlumpf the 24" just doesn’t provide enough excitement.

I like the idea of protecting it with some lube.

Just exactly how long does it take to get a Schlumpf hub repaired?

Wow, I think this is the longest that I’ve ever seen my all-time-favorite thread go without a post to bump it up to at least the top 10 pages of RSU. Are you people losing interest or just too busy riding your Schlumpf to post?

I saw some very alarming rage thread about someone like Bronson Silva (built my geared KH36, a great guy to work with) getting Florian’s blessing to crack-it-open and repair a malfunctioning Schlumpf hub stateside. Until that sort of solution is a reality, us mechanically-challanged owners are left with no choice but to keep our Nimbus “Disc” Impulse (a pretty sweet 36er in it’s own regard) on hand for when the (inevitable?) malfunction happens. I have already committed to several distance events that require I keep at least one of my two 36ers in running condition.

I’m tracking John Foss’s repair timeline to see what I might expect when (God forbid) it’s my turn. Super nice of Bronson to loan John a hub while he waits. Me, I’ll probably just be waiting.

I’m looking forward to reading the full report (Hub broke on this date, I emailed Florian on this date, tore down my wheel and shipped my hub on this date, got a response to my email on this date, and got my “repaired” hub on this date) from John.

For those without access to the news link: Starting this year, the Schlumpf “Mountain Drive” gears will be assembled and later also manufactured in Germany by Haberstock Mobility.

I understand this news is not exactly Unicycle-Hub-Specific but it makes me wonder what to expect for us going forward.

Does anyone now when the Schlumpf patent expires?

I have not had any problems with my hub, but I don’t ride it much; I suppose that’s one way to prevent failures :stuck_out_tongue:

My guni is still for sale, looking for best offer on the wheel set only:
Built by Silva Cylces in Fall 2011, 26" KH Freeride Rim, new design Schlumpf hub with dust shields, DB spokes, spoke washers, and brass nips. Very lightly ridden, fair weather use only. PM for details.

I’m still waiting on the “got a response” part, but I expect to hear something tomorrow; I finally made a phone call over there on Friday, and spoke to a nice lady who said she would ask Florian to look for emails from me, and get back to me. I sent him a fresh one in case he doesn’t have the old ones.

I don’t know about patents, but it’s not like the market is clamoring to make competing products at the moment. The reason we’re not all riding Harper hubs is because he was unable to find a manufacturer that could make a high enough quality product. Florian can, but it doesn’t come cheap and his time is limited. I expect he has to devote more times to more lucrative projects as well.

I’ve got access to all kinds of prototyping and manufacturing machinery.

Is there a thread about the harper hub?

Maybe this helps a little:

Well, that’s quite impressive. Unfortunately it doesn’t allow shifting. I don’t like the idea of a fixed gear ratio that much.