Thanks Mike! I’m already borrowing back my old Coker frame and wheel build (extra wide, SS spokes, super-strong Adelman build). I’ve put tons of miles on that wheel, so I’m pretty comfortable with it. Plus, I can drop my same seat onto it, so the only real difference from what I have now is the geared hub (and the Nimbus frame, which isn’t that great, IMHO – it is too flexy).
corbin
corbin- man that sucks
but i work with these kinds of gearboxs alot on my robotics team
i really think as harper said it’s the bearings especially if he uses cone bearings not sealed this fit all your sysmtoms if it cone
the good news if it is cone bearing that are the problems they many just need to be tighten
now i’m not sure about you mech skill but these thing are not fun to work on but it can be done with some tools and alot i mean alot of time
good luck -colin
Don’t know if Robert Allen (Daytripper63) is reading the forums much, but if you can’t get in touch with Florian another possibility is a loan of his 36" Schlumpf (non-ISIS), the one I rode in our little Crit race the other day. Let me know if you want to get a hold of him…
Don’t know if Robert Allen (Daytripper63) is reading the forums much, but if you can’t get in touch with Florian another possibility is a loan of his 36" Schlumpf (non-ISIS), the one I rode in our little Crit race the other day. Let me know if you want to get in touch with him…
I hope you get a replacement quickly, Corbin. I rode my N36 with 110s yesterday to go vote, and it felt like a toy in comparison to my geared KH29. Such a wide, bouncy tire and so maneuverable.
Sad story! But what I was afraid would happen. I think we long distance riders take the equipment to the maximum that it can handle…and sometimes over the limit. I hope the problems can be fixed and I am sure Florian will fix it to get good reputation. RTL will be the definitive test of the geared unis! And we all are waiting for the test result. Personally I like the easy maintenance of the unicycle. When I was racing mountain bike back in the early days it was no high tech equipment (suspension forks, advanced braking system…) but to race a mountain bike in heavy terrain needed even more training and was a lot more fun than all the equipment to day… I have had some bad dreams that my unicycle fun will end up the same way. Give me a wheel and some pedals and have a lot of fun!
I’m still here, just working to much.
John, if your not going to use the guni then I dont have a problem with Corbin borrowing it as long as he takes full responsibilty for it if anything happens to it.
just let me know
Robert
Hi everyone,
First off, Florian Schlumpf is my hero! He is a great guy. He knows how important the race is to me, so he’s going to send me a fixed up hub today! I should get it by monday, which means I should be able to have my wheel back together by the middle of next week!!
Florian had been pretty busy lately; his brother recently died from a motorcycle crash, and he has been busy managing two businesses because of that. I told him to not worry about me, and that his family matters should take the highest priority.
He thinks the hub may have failed in the same way that Chuck’s failed. I’m mailing it back to him today, so I’ll let everyone know once I find out the details.
I’ve really missed the hub for the past few days. I rode ungeared for 16 miles last night, and my left leg has a strange soreness that happens from spinning to fast. I really don’t enjoy riding ungeared anymore, and it seems like I’m spinning madingly fast to maintain 18mph downhill. On flats, I can barely maintain 15mph – and that’s only if I’m really pushing hard. My spinning speed has definitely slowed down since I started riding geared up.
I’ve said it before, and I’ll said it again. I’ve seen the future of unicycling, and it is geared.
-corbin
Florian IS a great guy. I really enjoyed riding with him in Laos. I’m very sad to hear of his brother.
Amazing. You rarely see this kind of excellent customer service with any other person or company. Florian is definitely a great guy and I am glad you will be able to use a geared hub for the race!
Really sad to hear about Florians brother. But great to hear that he’s fixing things up for Corbin despite the family tragedy. He is such a meticulous guy I don’t think he’d get any sleep until the problem was fixed, and every little flaw in the hubs were corrected.
He is definitely one of the most awesome people I’ve met in unicycling. And if there was ever a unicycle hall of fame…he would be in it.
Is it the big wheel?
As a new KH/Schlumpf owner (so brand new, I haven’t assembled the uni yet 
) I’m finding these threads about hub breakages pretty “interesting”. I am struck by one thing: it seems that all the breaks have 3 common and cumulative factors: superhuman riders, lots of miles and 36”wheels.
Knowing that the hub was extensively tested by top riders before the launch, it may be that the only really new factor is the extra torque of the 36” wheels; albeit abetted by the heavy mileage applied on the road, where strong riders will push closer to their limits thanks to the smoother surface.
I am thus telling myself that a below average strength/skilled rider on a 29” wheel riding on the weekends, is much less likely to break the hub. Doesn’t mean it’s not a good idea to send the hub to Florian, just that perhaps there isn’t a tearing hurry for us non-RTL racers. Might be a good idea to wait and see if any other weak points emerge in the racing…
So, does the above make sense to the forum, and does anyone know of cases of hub breakage with non-36” wheels?
Paulo
Hi Paulo,
Florian has beefed up the planetary carrier to address the problem. He also has bigger axle bearings, which may be the thing that failed on mine.
I am pretty tough on my equipment. I’ve broken several plastic seat basis (muni and trials), the Scott Wallis “death grip” carbon fiber handle (coker), several seat posts (trials), lots of spokes (trails, muni, coker), bent hubs (KH24 - old steel frame and splined hub), broken cranks (KH20 steel crank), bent cranks (steel, 125 and 150 mm - coker riding offroad), untrue my wheels(muni, coker), broken lots of pedals (muni, trials, coker). The only thing I haven’t broken on a uni has been the tire, rim, and frame.
I don’t think there is a hurry to send in your hub to florian. You should do it at some time, but you can get a lot of miles on it as-is. Mine had 700 on it!
corbin
My condolences to the Schlumpf family. Having met Florian at Unicon in 2006 I know how dedicated he is to his product, and figured it would just be a matter of communication and timing. What a great guy.
Same for Daytripper63. Very kind of you! Looks like your Schlumpf 36 will spend RTL sitting in my garage. Though I can ride it faster on the flats, I think I’m better off ungeared for the rolling terrain. Also for greater “ease in maintenance.”
Hello,
my KH/Schlumpf hub broke during a downhill last weekend. I have a 24" HK/Schlumpf MUni. There wase a click/crack sound and the hub failed. I can shift, but in both gears the wheel will only rotate max 1/2 rev and then it is jammed! I´ll send it back to Florian tomorrow.
Gerald
PS.: My condolences to the Schlumpf family.
Is this a hub that has already been recalled for the stronger planet carrier to be fitted or an original one?
(By the way, until it broke, how was it with the 24" wheel? It sounds like a great size to use it in but I have never tried one that size)
STM
Can’t answer the other question, but I’ve had a quick play with Mike Penton’s KH/Schlumpf 24. Only inside in a gym, so not much of a “test ride”, but with my limited guni experience I found it much easier to ride than a geared 29er. The “virtual 36” with 150mm cranks felt pretty similar to my normal 36 on 150s. Still felt a bit odd, but I could ride it straight away, whereas I really struggled with gkmac’s 29er. I would imagine it would be very nice for some mixed xc and technical muni.
Rob
Hi,
it is an original one?
I like the 24" very much and I use it for riding on mountains.
With the high gear you can do downhill and go very fast on the flat (between the mountains)
Gerald
Ah! I forgot to update this thread.
Here is what happened:
My non-knurled bearing failed. It failed due to me using it in my Nimbus 36 frame, which I had converted from 40mm bearing holders to 42mm by carefully grinding out the space. This doesn’t produce a 100% correct 42mm semi-circle, and puts uneven pressure on the bearings. We did the same thing on Nathan’s N36, and the same problem started to happen. On RTL, with updated bearings and the same “bad” frame, I had the bearing start to fail (again) on the last day.
Bottom line: it was the frame’s fault, and not the hub! I would only use the KH Schlumpf hub in a KH frame (or a Hunter with proper holders).
I love the hub. I’m currently getting mine repaired (at my expense, since it was my fault), and I’m buying a new on for Louise. I’m planning on running my old hub in a 24" muni, and putting Louise’s in a KH 24 frame. Eventually I’ll get another one for my 36" wheel, once the KH 36 comes out.
corbin
Man, that is a relief! Thanks for the update