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My KH/Schlumpf hub slipped on a downshift and how to oil the hub...
I probably didn't have enough torque in the crank bolts, because I was trying to be careful when installing, because these were the replacement bolts I got after one of the initial bolt heads stripped out. But the on the road, I didn't really have the tools to get enough torque into the bolt; I had to keep tightening the crank every few miles (which is annoying on the Schlumpf due to the shifting button). I'm going to get a good long wrench, some degreaser and some Loctite together to hopefully make things solid. It is clear that loose cranks are an extremely bad thing on a Schlumpf. There's often some neutral mode when I shift on the road, but I haven't had it get stuck in that mode. I did, however, have it get stuck in neutral a couple of times when not on the uni; I had pushed the button to shift to low gear in preparation for mounting, and the wheel kept moving but the cranks didn't. This was on the Cañada Road ride, I was with Corbin at the time. So it's clearly possible for a shift to result in coasting; it probably depends on a combination of how far you push the button in, combined with how much pressure you have on the pedals at the time. Aside: Mike and I did an approximation of the Grizzly Peak Century, doing about 100km with an assload of climbing (probably between 1500 and 2000 meters). My first century on uni! Photos at http://www.flickr.com/gp/83189681@N00/T48MJS. '[image: http://farm4.static.flickr.com/3191/2466334267_93ac118c20.jpg]' (http://www.flickr.com/photos/tholub/2466334267/) '[image: http://farm4.static.flickr.com/3146/2467203784_af45c6d1a2.jpg]' (http://www.flickr.com/photos/tholub/2467203784/) -- tholub ------------------------------------------------------------------------ tholub's Profile: http://www.unicyclist.com/profile/804 View this thread: http://www.unicyclist.com/thread/69694 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
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#2
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My KH/Schlumpf hub slipped on a downshift and how to oil the hub...
That sure looks like some fun riding ! how long does it take to cover that much ground an a 36 -- sxbud138 ------------------------------------------------------------------------ sxbud138's Profile: http://www.unicyclist.com/profile/17097 View this thread: http://www.unicyclist.com/thread/69694 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#3
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My KH/Schlumpf hub slipped on a downshift and how to oil the hub...
tholub wrote: Aside: Mike and I did an approximation of the Grizzly Peak Century, doing about 100km with an assload of climbing (probably between 1500 and 2000 meters). My first century on uni! Awesome. -- U-Turn Weep in the dojo... laugh on the battlefield. -- Dave Stockton ------------------------------------------------------------------------ U-Turn's Profile: http://www.unicyclist.com/profile/691 View this thread: http://www.unicyclist.com/thread/69694 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#4
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My KH/Schlumpf hub slipped on a downshift and how to oil the hub...
There are great cycling roads all over the Bay Area. Yesterday's ride took us almost 9 hours start to finish, although we stopped a lot, had lunch at a local deli, and had a few mechanical problems (mostly this dang crank). The hilliness also kept our rolling speed a lot lower than it was during last week's Napa ride, where we averaged over 13mph in RTL simulation mode (relaying) on our geared 29 and 36. -- tholub ------------------------------------------------------------------------ tholub's Profile: http://www.unicyclist.com/profile/804 View this thread: http://www.unicyclist.com/thread/69694 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#5
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My KH/Schlumpf hub slipped on a downshift and how to oil the hub...
I lived in cali for a few years and the bay area is very nice. I was in the Riverside,Chino area and that was before I rode UNI. Michigan has some nice areas that when i get my coker or 29 i look forward to riding.The only downside in michigan is the cold weather + snow. -- sxbud138 ------------------------------------------------------------------------ sxbud138's Profile: http://www.unicyclist.com/profile/17097 View this thread: http://www.unicyclist.com/thread/69694 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#6
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My KH/Schlumpf hub slipped on a downshift and how to oil the hub...
Hmm- i can see how scary a period of freewheeling must be when you don't expect it. But at the same time i can't help but think of the possibilities of a KH/shlumpf with an extra gear, or clutch position for coasting on downhills... Maybe it is just me but most of my unicycling dreams have mee riding a uni at really fast pace that can also freewheel when i will it to- wierd but maybe worth a discussion? would a caliper brake give a rider enough control to negotiate a coast on a desent? mark -- napalm you wont do it...your SCARED! "We are all racing towards death. No matter how many great, intellectual conclusionswe draw during our lives, we know they are only man made, like God" http://gallery.unicyclist.com/LAVISs-stuff ------------------------------------------------------------------------ napalm's Profile: http://www.unicyclist.com/profile/3952 View this thread: http://www.unicyclist.com/thread/69694 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#7
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My KH/Schlumpf hub slipped on a downshift and how to oil the hub...
tholub wrote: It is clear that loose cranks are an extremely bad thing on a Schlumpf. Yeah, I had a *lot* of trouble on that first long distance ride that we did. After that ride, I torqued them down to 25 ft-lbs (I think that was it, but maybe 30). Since then, they haven't come loose at all! The torque wrench was essential. I wasn't getting it nearly tight enough with the provided allen wrench. corbin -- corbin http://www.corbinstreehouse.com ------------------------------------------------------------------------ corbin's Profile: http://www.unicyclist.com/profile/7561 View this thread: http://www.unicyclist.com/thread/69694 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#8
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My KH/Schlumpf hub slipped on a downshift and how to oil the hub...
napalm wrote: Hmm- i can see how scary a period of freewheeling must be when you don't expect it. But at the same time i can't help but think of the possibilities of a KH/shlumpf with an extra gear, or clutch position for coasting on downhills... Maybe it is just me but most of my unicycling dreams have mee riding a uni at really fast pace that can also freewheel when i will it to- wierd but maybe worth a discussion? would a caliper brake give a rider enough control to negotiate a coast on a desent? Can you coast on a normal unicycle? Or, brake-assisted coasting? If so, then a free-wheeling hub might work for you. If not...then it won't. corbin -- corbin http://www.corbinstreehouse.com ------------------------------------------------------------------------ corbin's Profile: http://www.unicyclist.com/profile/7561 View this thread: http://www.unicyclist.com/thread/69694 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#9
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My KH/Schlumpf hub slipped on a downshift and how to oil the hub...
Coasting is hard enough when you're doing it intentionally (I'm guessing since I can't actually coast). If you find yourself suddenly freewheeling at speed, you're going to go down in an unpredictable way, and you're probably going to get hurt (eg. Ken Looi's compound fracture). Whether or not you could use a caliper brake to intentionally coast at speed is beyond my skill and definitely beyond my courage! napalm wrote: Hmm- i can see how scary a period of freewheeling must be when you don't expect it. But at the same time i can't help but think of the possibilities of a KH/shlumpf with an extra gear, or clutch position for coasting on downhills... Maybe it is just me but most of my unicycling dreams have mee riding a uni at really fast pace that can also freewheel when i will it to- wierd but maybe worth a discussion? would a caliper brake give a rider enough control to negotiate a coast on a desent? mark -- mscalisi Unicycle for (reducing the) Buddha ------------------------------------------------------------------------ mscalisi's Profile: http://www.unicyclist.com/profile/4961 View this thread: http://www.unicyclist.com/thread/69694 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#10
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My KH/Schlumpf hub slipped on a downshift and how to oil the hub...
No, you can't coast with a brake. If you use the brake it's no longer coasting. when you use your foot, we call it gliding. I'd still think of it as gliding but if more people started doing it we'd probably need a new name for it. Coasting on a freewheeling unicycle is arguably easier than doing it on a regular one. However *shifting into* a freewheeling mode adds a level of difficulty that would make the learning curve massively steeper. I know this from shifting on my borrowed Schlumpf 36. Upshifts are almost always fine, but downshifts usually give me a brief period of freewheeling, which I'm just not prepared to ride out of when combined with the awkward foot position of pushing the shift button. -- johnfoss John Foss Email: "jfoss" at "unicycling.com" -- www.unicycling.com ----------------------------------------------- Man with broken collar bone say: "Have you checked your shoelaces lately?" ------------------------------------------------------------------------ johnfoss's Profile: http://www.unicyclist.com/profile/832 View this thread: http://www.unicyclist.com/thread/69694 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
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