Re: Wheel problems with the Coker big one unicycle
Ken wrote:
> Solution: True the wheel so it stays centered in the frame as it is spun
> around by hand. Be sure the spokes are all about equally very tight.
It is possible to over tighten the spokes on a Coker and the result is a
wheel that taco’s easier! I had to loosen a customers wheel recently by 3
and half turns to stop it tacoing, it was still tighter than I have my
wheel. Rigid systems on Cokers don’t always work.
> The bearings put on by Coker are not very good and could be wearing out.
Coker bearing although bad are a lot better than used to be. They suffer
dramatically if they are over tightened. Be sure to tighten them only
sligtly more than hand tight. Because there is so momentum on the Coker it
is dificult to see if the wheel has friction in it.
This comment on tightening bearings goes for all unicycles! on a side
line… if you have snapped the bolts I would say you are DEFINATELY over
tightening your bearings. Screw drivers with a 10mm socket head are a great
tool!
> Spacers could be added to center the hub in the frame.
Problem with the hub again, the bearings slip on the supposidly press fit
surface on the hub. The easiest solution it push them on with locktight and
bend the frame so it is narrower than the bearing so it is always forcing
the bearings on to the hub.
Re: Wheel problems with the Coker big one unicycle
“Nathan Hoover” <nathan@movaris.com> wrote in message news:anfgjg$bdm@dispatch.concentric.net…
> My new Kovachi Airfoil wheel was true but after just 50 miles or so needed
> tightening on every single spoke.
>
That sounds like either the spokes weren’t stress relieved, or they had
wind-up. You’ll probably be okay after this truing though, a good long ride
is a great way to stress relieve spokes.
Re: Wheel problems with the Coker big one unicycle
Yes, I agree! A good long Coker ride is an excellent way to relieve stress.
-mg
“Joe Marshall” <localhost@127.0.0.1> wrote in message news:1033640279.191511@ananke.eclipse.net.uk…
> “Nathan Hoover” <nathan@movaris.com> wrote in message
> news:anfgjg$bdm@dispatch.concentric.net…
> > My new Kovachi Airfoil wheel was true but after just 50 miles or so
needed
> > tightening on every single spoke.
> >
> That sounds like either the spokes weren’t stress relieved, or they had
> wind-up. You’ll probably be okay after this truing though, a good long
ride
> is a great way to stress relieve spokes.
>
> Joe
>
>
>
>
Immediatly after recieving my Coker I recognized the metal as the accursed cheeze of my bike shop days. I trued the wheel, tightened all the spokes one turn and trued it again. then I tightened all the spokes again and retrued the rim.
I don’t do tricks, and what little trail riding I do hasn’t messed it up too badly. Roll on! carjug
I have the same question as Jag – why not use the Semcycle Deluxe hub which is 12mm wider flange-to-flange than the Suzue? How much wider is the modified hub that you are working with, George?
And yes, what are the spoke length ramifications?
Along the same lines, what is the flange-to-flange distance of the Profile hub?
Now rhysling, I didn’t say I wanted to use it for the Coker. But I might. But I bet you didn’t know that Profile offers 10 (TEN) different crank lengths that are compatible with the Profile unicycle hub!
Re: Wheel problems with the Coker big one unicycle
and if you use a hub I don’t have in tell me and I will add it in for you.
Roger
The UK’s Unicycle Source
----- Original Message -----
From: “U-Turn” <U-Turn.c0i5d@timelimit.unicyclist.com>
Newsgroups: rec.sport.unicycling
To: <rsu@unicycling.org>
Sent: Friday, October 04, 2002 7:35 PM
Subject: Re: Wheel problems with the Coker big one unicycle
>
> jagur wrote:
> > *hey U-turn,
> >
> > all that hub width,stuff can be had on the spoke calculater page.just
> > punch in a hub and it gives you the goods.
> >
> >
> > http://www.unicycle.uk.com/SpokeCalc.asp
> > *
> Ah, so… Velly wise, Mr. Jagur.
>
>
> –
> U-Turn - Definitely not one of the Elite
>
> ~~~~~~~x (ouch)
> ------------------------------------------------------------------------
> U-Turn’s Profile: http://www.unicyclist.com/profile/691
> View this thread: http://www.unicyclist.com/thread/20802
>
>
Pinging also works for crossed patterns, even up to 4 cross. In fact, for a 4 crossed 20" wheel all you can do is ping because the tensiometer won’t fit on the open sections of the spokes.
George –
Any idea if the brake bosses on my stock Coker frame would still be in the right position with a 100mm hub and the Airfoil rim?
I think you’ll be able to use the same bosses. I did a little math and I think widening your frame will change the vertical location of your bosses by 1/16" (0.0625") or less. There is some degree of adjustment in your V-brakes, so you should be alright.
I switched from a steel rim to the Airfoil and did not have to change my brake boss location or adjust my brakes. In my case, the width of the hub did not change, both were already widened.
