|
|
Thread Tools | Display Modes |
#61
|
|||
|
|||
New KH Hub, defective??
Chrashing wrote: The way I observed the problem was to remove one crank and put it back on aligned with other crank, (like a kangaroo cycle). Then rotate the wheel to line a crank up with the frame fork. The other crank should then be in line with the fork as well. See if there is a difference. I have felt this wheel from day one (july) seemed harder to idle on, it took some practice for me to learn ride backwards again on. It's the same size wheel I replaced. I did go from from 160 cotterless to 165 splined, but had used 170 cranks in the pass, and found longer cranks easy to idle with. As an experiment this morning, I purposly offset one crank one spline from it's normal posistion and tried to ride the unicycle. It felt impossible to ride. Being one spline off is much much more than the alignment problem, but it does demonsrate sensitivity. Chrashing, Rotating the cranks one spline will get them out of alignment with much more than the current defect does! I believe that 1/4" is too small to make a too much of a difference! You may find idling more difficult due to other changes in your setup. Have you changed other parameters besides cranks and hub? The splined cranks and hub are maybe heavier than your previous rig. Moreover the tire brand/model and its pressure has a major impact on riding/idling. I, personally, consider that once one mastered idling he should not have problems with such slight changes in the hardware However, I don't say this to excuse the amateurish error that the engineers did! Finally I think all cranks that are miss-aligned share the same amount of error if they come from the same setup of the manufacturing jig... ----------------------- By the way, not long ago I saw a thread where some people discussed about riding a unicycle with both cranks in the same direction (kangaroo style). I tried this for the first time this weekend and managed to idle 1 footed right from the first try and with both feet on pedals in about 5 minutes. In 10 minutes I was riding more than 100m with both feet...cool feeling Oh - I did this on my 2007 KH20! Flaviu -- UAC "The World is a book, and those who do not travel read only a page" (Saint Augustine) ------------------------------------------------------------------------ UAC's Profile: http://www.unicyclist.com/profile/12170 View this thread: http://www.unicyclist.com/thread/63683 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.usenet.com |
Ads |
#62
|
|||
|
|||
New KH Hub, defective??
Since my last post I went down and put together my old trusty Nimbus Muni with the cotterless cranks. (Had it boxed, ready mail to my sister in Chicago) Checked to see how well aligned those cranks are and they are perfectly aligned. Between the KH and the Nimbus the tires are the same size, same seat, 160 vs 165 cranks, steel vs aluminum frame. So then alternated riding between both the slightly mis-aligned splined and the true cotterless. Honestly, I did not find a significant difference between my idling and backward skills between the two unicycles. (I seem to still suck a bit at both.) So now it's not clear that there is a problem. I still feel that the splined had a bit of a learning curve to it that was surpizing since I was accustom to the similar wheel size and setup. I had often changed crank size. Maybe I've learned to compensate for the mis-alignment, or maybe it's just not a significant difference. -- Chrashing Regards, Ken ... I say it's a great exercise. They say it's a mid-life thing. ------------------------------------------------------------------------ Chrashing's Profile: http://www.unicyclist.com/profile/7501 View this thread: http://www.unicyclist.com/thread/63683 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.usenet.com |
#63
|
|||
|
|||
New KH Hub, defective??
Borgschulze wrote: What's your source for it? I might be interested in that nice looking tubing if they sell it in 4130 CrMo. http://tinyurl.com/l5adh I don't know if thats his source but you can get it there. -- Joe2005 nobody knows what happened to that boy after that.-Nutcracker i know. he was kidnapped by aliens, learnt their ways, stole the biggest ship he could, travelled back in time by mistake and crashed the plane on the earth surface. he was the one who killed the dinosaurs. -ivan ------------------------------------------------------------------------ Joe2005's Profile: http://www.unicyclist.com/profile/13692 View this thread: http://www.unicyclist.com/thread/63683 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.usenet.com |
#64
|
|||
|
|||
New KH Hub, defective??
Joe2005 wrote: http://tinyurl.com/l5adh I don't know if thats his source but you can get it there. Yeah, he PM'd me... Most of that tubing is nearly twice the price I can find it locally, IF they have it in stock. -- Borgschulze 'deviantART' (http://borgschulze.deviantart.com/)'Gravity' (http://videos.observedtrials.net/Gravity.wmv) is -not- the issue. ------------------------------------------------------------------------ Borgschulze's Profile: http://www.unicyclist.com/profile/13501 View this thread: http://www.unicyclist.com/thread/63683 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.usenet.com |
#65
|
|||
|
|||
New KH Hub, defective??
I'm a lucky ******* because I live next to Boeing, which means that we have the yard, which means you can buy a whole bunch of scrap material pretty cheap. -- Joe2005 nobody knows what happened to that boy after that.-Nutcracker i know. he was kidnapped by aliens, learnt their ways, stole the biggest ship he could, travelled back in time by mistake and crashed the plane on the earth surface. he was the one who killed the dinosaurs. -ivan ------------------------------------------------------------------------ Joe2005's Profile: http://www.unicyclist.com/profile/13692 View this thread: http://www.unicyclist.com/thread/63683 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.usenet.com |
#66
|
|||
|
|||
New KH Hub, defective??
Joe2005 wrote: I'm a lucky ******* because I live next to Boeing, which means that we have the yard, which means you can buy a whole bunch of scrap material pretty cheap. Hamilton is also known as Steel City, we have I believe Canada's largest steel mill. -- Borgschulze 'deviantART' (http://borgschulze.deviantart.com/)'Gravity' (http://videos.observedtrials.net/Gravity.wmv) is -not- the issue. ------------------------------------------------------------------------ Borgschulze's Profile: http://www.unicyclist.com/profile/13501 View this thread: http://www.unicyclist.com/thread/63683 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.usenet.com |
#67
|
|||
|
|||
New KH Hub, defective??
Thats awsome man. So do you like sneak around and steal random pices of scrap? -- Joe2005 nobody knows what happened to that boy after that.-Nutcracker i know. he was kidnapped by aliens, learnt their ways, stole the biggest ship he could, travelled back in time by mistake and crashed the plane on the earth surface. he was the one who killed the dinosaurs. -ivan ------------------------------------------------------------------------ Joe2005's Profile: http://www.unicyclist.com/profile/13692 View this thread: http://www.unicyclist.com/thread/63683 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.usenet.com |
#68
|
|||
|
|||
New KH Hub, defective??
Joe2005 wrote: Thats awsome man. So do you like sneak around and steal random pices of scrap? Nope, it's all fenced in. My local metal shops are pretty cheap though. Square tubing on that website... cheapest 3/4x3/4 is $4.35 PER FOOT in USD.... My metal shop.. 3/4x3/4 0.083 Wall is... $1 per foot... in CAD. -- Borgschulze 'deviantART' (http://borgschulze.deviantart.com/)'Gravity' (http://videos.observedtrials.net/Gravity.wmv) is -not- the issue. ------------------------------------------------------------------------ Borgschulze's Profile: http://www.unicyclist.com/profile/13501 View this thread: http://www.unicyclist.com/thread/63683 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.usenet.com |
#69
|
|||
|
|||
New KH Hub, defective??
I think he came up with the best method, assuming you have a puller. I spun one side around, and then could check it with a straight edge across the cranks flat side to the frame on each side. I got my 20 from A E Bike last May. Unlike Wickedbob, they sent me a lucky box. Try as I might I could find no difference between the sides. Mine are accurate to within less then a mm. A real fast way to check, that would spot a large error, is to line the upper crank with the frame. Stand over the uni like you are getting ready to ride. With one crank lined with the frame, sight down the frame on the other side, to see if the pedal looks centered. If it looks off, it is. I like Chrashings method best. Very precise. So I feel a little bad, like I'm gloating ! Mines ok! At least we know they aren't all off. I hope this turns out to be a false alarm for most of the rest of you as well. It's quite possible Kris doesn't know what's wrong yet, he needs someone to send him an off set. In all likelihood it is just one side that was mis machined, so once he knows what side it is, only one new arm should be needed. -- feel the light ------------------------------------------------------------------------ feel the light's Profile: http://www.unicyclist.com/profile/14551 View this thread: http://www.unicyclist.com/thread/63683 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.usenet.com |
#70
|
|||
|
|||
New KH Hub, defective??
Personally, I think the easiest or most accurate way to check this on a built wheel, is to remove ONE crank and BOTH pedals... .Now put the (removed crank) back on the hub, opposite the other crank; the two holes of the cranks should be in line. Now take a long peg/pole/bar/rod (preferably the same size as the holes, and stick it through both holes (as a result also through the spokes); now turn your wheel until the peg/pole/bar/rod gets stuck against the fork/tubes; the peg/pole/bar/rod should hit the fork on both sides simultaneously; otherwise the cranks are misaligned.... I've tested it with my double-hole KH cranks (KH 24 is 3 weeks old!!!); same problem over here. I'm pretty sure it's caused by the HUB as I've just received BRAND NEW Cranks (ordered and received after the reported problems) and the misalignment remains... Another Michie UAC wrote: It should be not so difficult to tell if the cranks are miss-aligned even in case of a built wheel! 1. Find two flat topped chairs of the same height 2. Remove the wheel-set from the frame 3. Remove on of the cranks and put it in line with the other 4. Place the chairs one next to the other on a flat surface leaving a gap between them...place the wheel on the cranks in between the chairs 5. Take a conclusion... I have all 3 KHs with Moment hubs. After seeing this thread I was curious to check mine. Right from the first attentive glances I found out the same problem on my KH20 and KH24 On my KH29 I have the double-hole cranks but not checked 'em yet. For me now only eye inspecting is enough to tell... I never noticed this issue until now...and can tell that it should not affect riding at all. However it's sad this problem survived to this extent! Lately, I'm not surprised such things happen... It's not the designer's fault but the manufacturer's...they have to grow up! Flaviu -- a48724 ------------------------------------------------------------------------ a48724's Profile: http://www.unicyclist.com/profile/15728 View this thread: http://www.unicyclist.com/thread/63683 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ---------------------------------------------------------- http://www.usenet.com |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
New KH Hub, defective?? | torkerdx | Unicycling | 0 | August 22nd 07 01:39 AM |
Do I have a defective front shifter? | TomYoung | Techniques | 2 | February 1st 07 06:28 AM |
Defective spokes; maybe it wasn't your imagination. | Werehatrack | General | 1 | May 15th 06 02:55 AM |
Dura Ace STI defective? | Joel | Techniques | 6 | January 12th 06 04:01 PM |
Overtraining was defective pump | Derk | Techniques | 17 | December 23rd 04 06:04 PM |