Locking B*ke Freewheels

What you do is remove your freewheel then you can buy a single sprocket
that threads on the same threads and a lock ring and get the threads
clean then use plenty of red locktight. These sprockets and threaded
lock rings are for fixed gear track bikes and it's the way that most
giraffes are built. You could get the sprocket and lock ring from
unicycle.com. The ones for bikes are smaller than you would want for a
giraffe, you can probably get a twenty six tooth sprocket from
unicycle.com. I dont know of a way to lock up a freewheel and without a
lockring it would spin right off. The above setup will only work on an
old style removable freewheel not the newer cartridge type.

--
Tellurider - Dan Wilson
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Tellurider said:

The ones for bikes are smaller than you would want for a
giraffe, you can probably get a twenty six tooth sprocket from
unicycle.com.

If anyone manages to find a 26T sprocket, please let me know where. The
biggest size available as standard for track bikes is 22T. I thought
about a giraffe sprocket and asked Roger at unicycle.uk.com, he replied
that he thinks giraffe sprockets are 42T.

I have a project in mind which may be similar to the OP's (I don't know
what his project is), and I could really do with a 26T. These people
can bolt a standard chainring onto a sprocket:
<URL:http://www.highpath.aaugonline.net/>

But they charge GBP20 plus parts, which is not unreasonable but, by the
time you take into account the cost of the parts, is more than I really
want to spend on this project.

--
Danny Colyer (the UK company has been laughed out of my reply address)
<URL:http://www.speedy5.freeserve.co.uk/danny/>
"He who dares not offend cannot be honest." - Thomas Paine

Here's a link to Sheldon Browns 'fixed gear' bike page, with links to
pages on converting bikes to fixed gear.

http://www.sheldonbrown.com/fixed/index.html

--
onewheeldave - Semi Skilled Unicyclist

"He's also been known to indulge in a spot of flame juggling - but it's
the Muni that really fires him up."

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I welded the cheapo steel hub on the giraffe in the picture. Welding
may be cheaper than buying a fixed hub, even if you have to pay to do
it. It's obviously not an ideal solution (but it was very cost
effective!).

--
gbarnes - www.gb4mfg.com

George C. Barnes IV
GB4 Manufacturing, L.L.C.
http://www.gb4mfg.com/
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Thanks everyone... that might end up being my next project.

--
rabbidous - Unnofficial Level 2

The Great Rabbidous has spoken. Muah ha ha haaaaaaaaaa.
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In general, the lockring approach is not reliable. I have had one
success for light use and one failure for heavy use. Red loctite,
standing on the wrenches, and jumping on the pedals were all
unsuccessful in the latter case. For your project, you might consider
the welding approach; any local welder would do it for a few bucks.

--
U-Turn - Member of Generation XO

Weep in the dojo... laugh on the battlefield.

'29er Tire Study' (http://u-turn.unicyclist.com/29erTireStudy/)

'Strongest Coker Wheel in the World'
(http://www.unicyclist.com/gallery/albup39)

'New York Unicycle Club' (http://www.newyorkunicycle.com)

-- Dave Stockton
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I'd go for the welding option if I were you. If the locktite fails while
you're riding the giraffe, the resulting fall can be very sudden (and
painful). Personally I'd trust a welded giraffe a lot more than a
locktited one.

+0\|y

--
TonyMelton - He's the tucky!

See some photos of the first 'NZ MUni Weekend'
(http://gallery.unicyclist.com/NZ-MUni-Weekend-2004)
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