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-   -   Schlumpf hubs: general discussion. (http://www.unicyclist.com/forums/showthread.php?t=81914)

napalm 2009-11-23 09:45 AM

Schlumpf hubs: general discussion.
 
Hi everyone,

I thought it is a shame that most of the talk of schlumpf hubs occurs in the 'brand new broken schlumpf' thread. So with the teething problems of the first generation hubs being rectified (in a very noble manner by florian i must add), and more and more people enjoying this pretty amazing new piece of equipment i thought it would be time to start a new thread for people to talk and share ideas about their Hubs, the unicycles they are in, shifting techniques etc.

I'll start off, I have my Hub in a KH24" with 150/125 moment cranks (although i have yet to give the 125s a proper go). Slop is hardly noticeable in the hub, and the added weight didn't stop me from climbing my normal route to the summit of Mt Majura (300m of climbing). Once i get my magura brake line fixed i am looking forward to hitting some of the steep sections in high gear- at the moment there is just too much torque hitting my legs and the 1:1 ratio is compulsory.

I can shift within 1 or two pedal strokes of wanting to (but there is some preparation needed to make that happen). My feet are not huge so for me to shift i have to squidge my foot over on the pedal so that it is closer to the button- but also so that the pedal is more under the ball of my foot. At the moment riding on the balls of my feet for long stretches is not the most comfortable (especially if it is getting technical) so noting the terrain further ahead than i usually do is needed. Once i can see there is a spot i will need to downshift i can position my foot and then when i get to it shift on the first or second pedal revolution.

Also noticed (i only just received my hub back from Switzerland) that the cranks have not moved a bit since i initially installed them (despite removing the buttons twice and checking on my 15km ride this evening). They are seated well and there is a god amount of clearance between the crank and the frame.

Ok thats about enough from me- but lets hear from you! How is the schlumpf experience treating you?

cheers,
Mark

GizmoDuck 2009-11-23 12:01 PM

I rode 29.993km/hr on a 36" Schlumpf.

So it's pretty fast.

I like my Unguni, and I like my Schlumpfs. They have different uses.

That's all I have to say about that.

corbin 2009-11-23 04:52 PM

The Schlumpf hubs have changed unicycling.

Heck, they allowed a KH24 to tour with other 36'ers through Africa! We had 2 geared 24's, two geared 36'ers, and two ungeared 36ers on the tour:

http://www.corbinstreehouse.com/blog...video-unimoon/

The geared 36 is the perfect road machine. The geared 24 or 26 is the perfect off road machine. I really like my hubs, and I fully support Florian. He has done a great job.

-corbin

siafirede 2009-11-23 07:52 PM

Quote:

Originally Posted by corbin (Post 1308205)
The Schlumpf hubs have changed unicycling.

Heck, they allowed a KH24 to tour with other 36'ers through Africa! We had 2 geared 24's, two geared 36'ers, and two ungeared 36ers on the tour:

http://www.corbinstreehouse.com/blog...video-unimoon/

The geared 36 is the perfect road machine. The geared 24 or 26 is the perfect off road machine. I really like my hubs, and I fully support Florian. He has done a great job.

-corbin

I do love my geared 36. Lets not forget that the geared 29 is also an amazing road machine with the capability of light muni and XC and traveling.

Basically the schlumpf hub in a 24/26/29/36 will make your riding way more interesting and open a new world of possibilities to you.

I have had no issues with my hub. I did send it back after ride the lobster because it was recalled (even though I had no problems with mine), Florian beefed up the bearings a little and the planet carrier, and I have still had no issues with it. Since then, the bearings have become even bigger and stronger and it has a longer axle width to allow cranks other than the Moments. I do not have these two upgrades on my hub, but mine is still going strong.

naturequack 2009-11-23 08:22 PM

Those who say money can't buy you happiness don't own a Schlumpf.
It has opened a whole new world for me. I am exploring paces I never would have gone without it.
My hub has worked flawlessly for ~2800 km and counting. I feel fortunate to live in the era of unicycling when the Schlumpf hub exists.

Geoff

Rowan 2009-11-23 08:58 PM

Quote:

Originally Posted by naturequack (Post 1308272)
Those who say money can't buy you happiness don't own a Schlumpf.

When most of the money is in the pockets of a few people then money can't buy most people happiness. The few people with the money who can afford thousands of Schlumpf hubs will not be anywhere near as happy with them as the people who cannot afford them.

People should stop using oil in cars to ensure a steady supply of oil for the future of geared unicycle hubs, and it would also make road commuting more attractive to cyclists.

hugo 2009-11-23 10:39 PM

By now I rode 750 km on my 29", I guess 90% in high gear. It is still quite exhausting, and the risk of an UPD while riding fast keeps my adrenalin at higher levels than normal.

But it is fun!

rogeratunicycledotcom 2009-11-23 10:57 PM

Even after doing a mile or two on the schumpf I am not as comfortable on it as I am on my short cranked 36". This being said, I LOVE it. It is a major toy and I really enjoy riding it... the feeling you get when you get in the groove with it is amazing. Thank you Florian.

Roger

peter.bier 2009-11-24 01:16 AM

I've commuted for about a year now on a geared 29er, mostly 20km a day. I've also just tried a geared 36er which was a very different experience.

When I switched from an ungeared 36" to a 29er schlumpf I noticed about a 12% increase in speed for my standard commute.

I also fell off lots. I have been riding for well over a decade so it was an odd experience to go from virtually never coming off to routinely UPDing half a dozen times on a 10km ride. It took virtually no time to learn to shift but it took quite a while before I could nail the shifts 99% of the time. I discovered part of the problem was that if you hit a certain cadence absolutely spot on, then it is possible to shift and freewheel for half a rev or more (which often results in a dismount). After several months of schlumpfing I got more familiar with cadences to avoid, shifting became second nature and I was back to only the very occasional dismount. Initially riding a geared 29er required more thought but after a while it felt almost as natural as riding an ungeared uni.

I've also done longer rides (eg 80km road and 6 hour offroad events). On longer road rides having a lower gear is really handy on steep hills when you are tiring. The high gear is not really practical on offroad use unless you have smooth single track without much up or down (which by the way is an absolute blast to ride in high gear, especially with bermed corners). Having a high gear on offroad rides is fantastic when you are using a fire road to get to a decent piece of single track. Blast along the road in high gear and then shift down for offroad riding.

Recently I tried out a geared 36er and the transition was not as easy as I expected. Whereas I feel extremely comfortable on the 29er the 36er required a fair amount of effort to stay on and the "balance envelope" seemed a lot smaller than what I'm used to. Part of the problem could be I'm used to KH moments rather than schlumpf cranks, so shifting was a little harder. Also 140mm is pretty short for a first shot at riding geared 36ers. I think 150mm would be better to being with. I jumped on the 29er and could shift straight away. On the 36er it took many multiple attempts before I managed to stay on through a change of gears.

On my new 30km daily commute the geared 36er didn't shave any time off, compared with the 29er. That surprised me because there were certainly sections that felt like I was riding faster. These were balanced by having to slow down for changes and not being able to climb hills as fast. Perhaps because I'm not used to it enough yet. I might rebuild my hub into a 36 wheel of my own and see if I can make some improvements in my time. The 36er felt so different from anything else I've ridden that I'm uncertain whether I would ever feel truly relaxed on it. The speed increase would have to be reasonably significant before I would take it over a geared 29er. On the flat or downhill you can certainly go faster on the bigger wheel but I don't live in a particularly flat city :-)

Dave Cox 2009-11-24 04:00 AM

I bought a kh/schlumpf 36 with the intention of doing lots of long distance touring on it. I had the weak bearing failure issue before really getting into testing the thing, but have just gotten it back recently.

I use 137mm cranks, and for most things they're pretty nice, though there is a point where conditions kind of suck and I don't have enough power in either gear. I've also found that with a full touring load (heavy backpack), the balance envelope feels smaller again in high gear, and it is quite finicky until you get used to it.

After putting some distance my brain is starting to adapt and it's feeling really good. spinning away with a tailwind pushing you along is an amazing feeling, this thing just cruises forever without feeling like I'm going to wear out my knees, and it's great.

edit: also - I've got a lot of distance in on an ungeared 36. The ungeared really is comfortable, as roger has mentioned. A 36 with 110mm cranks feels very much at home to me now, having crossed mountain ranges on it, my muscles are set up for that crank length and the demands of that setup, and the lack of slop really gives you a solid feeling of connection with the cycle. That said however, I'm sure once I get 2-3000km on a schlumpf I'll be feeling similarly. I also really enjoy being able to idle and have loads of control with the longer cranks.

steveyo 2009-11-25 11:45 PM

I shot some more oil into my hub and had a great guni ride today. Thanks for developing this awesome machine Florian!

critter 2009-11-26 07:50 PM

I heart Schumps! So much fun.

I have a kh24 with a big fat street tire. I haven't muni'ed on it yet.

29er is too fast for me.:eek:

hugo 2009-11-26 08:55 PM

Quote:

Originally Posted by critter (Post 1309254)
29er is too fast for me.:eek:

Just a matter of getting used to it.

critter 2009-11-26 09:20 PM

Quote:

Originally Posted by hugo (Post 1309269)
Just a matter of getting used to it.

I did. Rode it for over a year.(29er). Then fell and blew out my knee. Now I'm scared of it. Now I can't run fast enough to bail. 24'' is my speed.

Love geared unis!!

hugo 2009-11-27 08:10 AM

Ouch! I hope your knee will improve over time.


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