Building a Unicycle

Building a Unicycle

Post by Robbi » Tue, 02 Mar 2004 15:39:03


I'm thinking of odering a complete custom unicycle, as you might of
heard in the hub and crank thread I made. I was just wondering what
tools are need to put custom parts together. Right now I'm looking at
Bulletproof alloy platform pedals, Kris Holm saddle, Arrow Racing Trials
Wheelset with Profile Hub and Crank Arms, and the frame I havn't decided
yet, maybe the Yuni Frame w/Gloss Black finish or the Kris Holm 20-inch
Trials Frame.

SO WHAT TOOLS WOULD I NEED TO PUT THIS TOGETHER OR TAKE IT APART?

WILL ALL THOSE PARTS FIT TOGETHER?

IS THERE ANYTHING I'VE MISSED THAT I'D NEED FOR A UNICYCLE, I HAVE THIS
GUT FEELING THAT THERE'S SOMTHING I'VE SIMPLY FORGOTEN?

Thanks in advance guys, I know you'll help me out.

Robbie

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Building a Unicycle

Post by toddw » Tue, 02 Mar 2004 15:54:43

add a seat post and a seat post clamp and you'll be able to sit on the
seat when you ride.

Also, does the wheelset come with bearings?  make sure that you check to
make sure that the bearings work with whatever frame you decide to
use... shims work well if the bearing is too small, but if it's too
large, that takes another approach.

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Building a Unicycle

Post by Robbi » Tue, 02 Mar 2004 16:51:50

Ok, it says this, on the Yuni frame.

Seat tube: 22.2-mm (7/8-inch) inside diameter
Includes Primo Viking 2-bolt seat post clamp, black bearing brackets and
chrome bolts/washers/nuts.

What seat post will work with that, the viking clamp and the kris holm
saddle?

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Building a Unicycle

Post by Robbi » Tue, 02 Mar 2004 17:00:29

Hey hey hey...

http://www.unicycle.com/shopping/shopexd.asp?id=608

That says it fits the frame and it seems to fit the requirements for the
Kris Holm seat. So I think that's the last thing I need hey? Tell me if
there's something else.

But on to the other question:

*So what tools would I need to put this together or take it apart?*

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Building a Unicycle

Post by Rayde » Tue, 02 Mar 2004 17:32:19

For the most part allen wrenches of various sizes. Allen wrenches to:
attach the wheel to the frame, attach the seatpost, im guessing to put
the cranks on the hub.

If you get the hub and rim seperately you will need to put the spokes
on. This may be better to have done at a bikeshop, unless you know how.
Pedals require a fairly large wrench.

Hex wrench to attach the seat to the post.

I can't think of anything else.

Edit: IKH use 27.2 mm seatposts. And they connect the way Viscount do.
NOT like miyata. Miyata holes are farther apart. KH are close together,
almost in a square. Oh, good luck finding one. I was not able to. The
only thing you could do is buy...

http://www.unicycle.com/shopping/shopexd.asp?id=276
and
http://www.unicycle.com/shopping/shopexd.asp?id=663

Or you could get a 22.2 seat post with a shim.
http://www.unicycle.com/shopping/shopexd.asp?id=244

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Building a Unicycle

Post by andrew_carte » Tue, 02 Mar 2004 18:24:49

Gary's got those seatposts to fit a Yuni-sized frame with a KH seat.
Custom unicycle....that sounds expensive...I told you you'd give in to
your urges soon enough! :)

Andrew

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Building a Unicycle

Post by tom_edmond » Tue, 02 Mar 2004 19:10:39

my seatpost (given to me for free) by the kind guys at Unicycle.com UK
fits the KH seat fine and my nimbus frame which i think is a 22.

as for the tools, like rayden said, its a size 14 spanner for the
pedals, and a size 10 spanner or socket for my bearing housings and
saddle fixtures.
im not aware of how splined cranks fit but do you need a tool for those
aswell, like you  need a socket for crank nuts on a tapered axle

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Building a Unicycle

Post by Robbi » Tue, 02 Mar 2004 21:38:21

Oh yeah, I was also just worried about getting cranks off. We can't seem
to get them off my friends unicycle. Do they just pull off or do you
need a tool? (This was the tool I was talking about for getting things
on and off)

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Building a Unicycle

Post by Robbi » Tue, 02 Mar 2004 21:31:52

Yeah andrew, it's very expensive. I'm not definately gonna buy it, but
I'm having a long hard look. I got money in the bank currently. But I'm
wondering if I should use it. It's like the ones you sell, except it
comes with profile cranks with the life-time warantee and all, so it
means I can use these cranks on any uni I decide to get from now (i'll
make sure they fit with it) and if they ever break, I'll get some new
ones. I'd just feel alot safer doing larger drops knowing I won't have
to worry about forking out another $300 for ones that will just break
again. Also I think some of the other parts might be a bit stronger. I
think I need to have a bit of a talk with you to see if the parts I'm
looking at are better than the ones you're selling on the GP trials.
It's similar, but yeah I think it suits me personally a bit more. Yellow
pedals!

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Building a Unicycle

Post by joemarshal » Tue, 02 Mar 2004 22:23:56

to get cotterless (square taper) cranks off, you need a crank remover
from any bike shop.

To get profile cranks off, I think you need a three pronged bearing
puller from unicycle.com, or if you're lucky from a car parts shop.

I think some of the newer splined cranksets have self extracting bolts,
which means you just need a big allen key to take the cranks off.

Joe

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Building a Unicycle

Post by Robbi » Tue, 02 Mar 2004 22:55:24

Does anyone know for sure how you get profile cranks off? I just want to
be really sure if I'm going to get them. Also do you need a tool to put
them on or would they just push on?

I don't have any experience with this type of cranks, mine are
cotterless right now.

Thanks in advance!

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Building a Unicycle

Post by Rayde » Wed, 03 Mar 2004 00:57:03

I dont' know about profile, except I know they don't slide off. The KH
slide right off. You need nothing but an allen wrench.

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Building a Unicycle

Post by tom_edmond » Wed, 03 Mar 2004 00:58:47

sorry, not trying to hijack the thread but, ive never got round to
buying a carnk extractor and usually just hammer off my cranks
(cotterless) is this bad for my cranks or hub, anyone?

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Building a Unicycle

Post by onewheeldav » Wed, 03 Mar 2004 01:44:40

Quote:

> *sorry, not trying to hijack the thread but, ive never got round to
> buying a carnk extractor and usually just hammer off my cranks
> (cotterless) is this bad for my cranks or hub, anyone? *

How do you hammer them off?

I always use a crank puller cos it seems like the least damaging way to
do it.

But, I'm sure the day will come when the threads go and it'd be useful
to know how to hammer them off when it happens.

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Building a Unicycle

Post by tom_edmond » Wed, 03 Mar 2004 08:37:35

lay it on a work bench and have a punch/flat head chisel of some sort
going through the wheel and toching the back of the crank in question,
and simply one or two BIG hits witha mallet, ive used a normal chisel
before come to think of it and it just left some slight marks in the
back of my crank, some times i use a bit of wood between them aswell,
depends whats lying around.....

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