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#1
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Help Needed: Off centered HUB
Hello I've searched the forum for problems like this and haven't found any. I searched for: "off center hub", "misaligned hub" and got no problem similar to mine. If there is another thread like this, sorry. So here it is: My hub is off centered and so the tire is closer to the frame on one side than the other and the same goes for the cranks. How can I fix this? How much do you think this affects riding? I normally have a slight idea of off centeredness while riding. But end up adjusting my seat, so I don't know. Thanks! Photos bellow: [image: http://estamine.net/unicycle/nimbus29_01.jpg] [image: http://estamine.net/unicycle/nimbus29_02.jpg] [image: http://estamine.net/unicycle/nimbus29_05.jpg] [image: http://estamine.net/unicycle/nimbus29_06.jpg] [image: http://estamine.net/unicycle/nimbus29_07.jpg] -- rui ------------------------------------------------------------------------ rui's Profile: http://www.unicyclist.com/profile/17654 View this thread: http://www.unicyclist.com/thread/74973 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
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#2
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Help Needed: Off centered HUB
Your wheel is out of true, you need to true it. Search for wheel truing or take it to your local bike shop (often abreviated as LBS) and have them do it. -- ntappin 'how to build a strong comfy saddle from junk.' (http://tinyurl.com/hxcb3) ------------------------------------------------------------------------ ntappin's Profile: http://www.unicyclist.com/profile/10800 View this thread: http://www.unicyclist.com/thread/74973 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#3
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Help Needed: Off centered HUB
So that's the name. Out of true! Hahaha, it's funny. OK! Thank you very much, going to search! -- rui ------------------------------------------------------------------------ rui's Profile: http://www.unicyclist.com/profile/17654 View this thread: http://www.unicyclist.com/thread/74973 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#4
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Help Needed: Off centered HUB
The bearing on the left side (first pic) slipped out a bit, its not hte wheel that is out of true. -- Smilymarco 'Municycle.com' (http://www.municycle.com) Lesen - Denken - Posten ------------------------------------------------------------------------ Smilymarco's Profile: http://www.unicyclist.com/profile/4110 View this thread: http://www.unicyclist.com/thread/74973 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#5
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Help Needed: Off centered HUB
I forgot to mention. But the distance from wheel to the frame is constant. For what I understood, truing it is not what I have. The wheel is trued. Its just the hub that is off centered. -- rui ------------------------------------------------------------------------ rui's Profile: http://www.unicyclist.com/profile/17654 View this thread: http://www.unicyclist.com/thread/74973 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#6
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Help Needed: Off centered HUB
That small gap of shinny metal between the bearings and the spokes in the top picture is where the problem is I think. My nimbus 29er doesn’t have that. The bearing shouldn’t be up against the crank like that. Will the bearing come off if you remove the crank? Both sides of mine look like the second picture. Sorry I can’t be of more help. Has UDC seen these pics? edit: yeah, if the distance to frame is constant the wheel is probably true. That bearing is where the problem is. -- kevinalexandersmith http://www.youtube.com/user/KevinAlexanderSmith ------------------------------------------------------------------------ kevinalexandersmith's Profile: http://www.unicyclist.com/profile/15268 View this thread: http://www.unicyclist.com/thread/74973 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#7
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Help Needed: Off centered HUB
Smilymarco wrote: The bearing on the left side (first pic) slipped out a bit, its not hte wheel that is out of true. kevinalexandersmith;1154329 wrote: Both sides of mine look like the second picture. Sorry I can’t be of more help. Has UDC seen these pics? Ha! You where of great help! All this time I thought it should look like the first picture! I see, the ball bearing is way off I think it has to go in. Damn. I hate removing the cranks! Haven't talked to them because I bought this unicycle second hand. Thanks all of you. Now, what is the safest way of fixing this? -- rui ------------------------------------------------------------------------ rui's Profile: http://www.unicyclist.com/profile/17654 View this thread: http://www.unicyclist.com/thread/74973 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#8
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Help Needed: Off centered HUB
rui;1154331 wrote: Now, what is the safest way of fixing this? remove the crank and find a metal tube that will slide over the axle and touches only the inner metal ring of the bearing (try a seatpost). Gently tap the bearing back in to place with a hammer. If the problem reoccurs try some bearing sleeve retainer on there. -- kington99 Dave - what a thoroughly post-modern subversion of the cycling genre - ------------------------------------------------------------------------ kington99's Profile: http://www.unicyclist.com/profile/9417 View this thread: http://www.unicyclist.com/thread/74973 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#9
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Help Needed: Off centered HUB
If one bearing is in the right place, against the axle spacer, and the other is way off and not against the correct spacer then doesn't that show that the bearing holders in the frame are wider apart than the bearings? This could either mean that the frame has 'spread', meaning that the legs have bent away from each other, or the bearings were never spaced correctly. To get the wheel to centre properly the bearings will both need to be spaced the same distance from the hub. It may be that you need to put a new axle spacer on each side of the axle between the hub and bearings. Hope this helps. -- UnicycleJuggler '*Unicycle Vids On Vimeo*' (http://www.vimeo.com/groups/uni) ------------------------------------------------------------------------ UnicycleJuggler's Profile: http://www.unicyclist.com/profile/16722 View this thread: http://www.unicyclist.com/thread/74973 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
#10
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Help Needed: Off centered HUB
UnicycleJuggler;1154375 wrote: If one bearing is in the right place, against the axle spacer, and the other is way off and not against the correct spacer then doesn't that show that the bearing holders in the frame are wider apart than the bearings? This could either mean that the frame has 'spread', meaning that the legs have bent away from each other, or the bearings were never spaced correctly. To get the wheel to centre properly the bearings will both need to be spaced the same distance from the hub. It may be that you need to put a new axle spacer on each side of the axle between the hub and bearings. Hope this helps. Normally when mounting the frame on the bearings, I have to open the frame, and force it to enter the bearings. I'm new to this, and so it didn't seem odd, but now I see the problem. Thanks! Going to try it today! -- rui ------------------------------------------------------------------------ rui's Profile: http://www.unicyclist.com/profile/17654 View this thread: http://www.unicyclist.com/thread/74973 Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- http://www.usenet.com |
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