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eternalignorance
Posted: Sun Apr 02, 2006 8:45 pm Reply with quote
Joined: 08 Jan 2006 Posts: 359 Location: Imaginary Places

so I have been told you cant make a fixie out of a bike with vertical dropouts....what is this, someone explain themselves, because I may want my motobecane fixed if I can do it.

http://seattle.craigslist.org/bik/147604555.html
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lantius
Posted: Sun Apr 02, 2006 8:57 pm Reply with quote
1337 Joined: 22 Jul 2005 Posts: 6705 Location: right over

basically, for a given length of chainstay there is a combination of chainring and cog that gives you the right length of chain to not need a tensioner.

see seditiouscanary's post on this topic: vertical dropouts to fixie.

i used this for the police bike and it's awesome.
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Hayduke
Posted: Sun Apr 02, 2006 9:07 pm Reply with quote
Joined: 01 Feb 2006 Posts: 677 Location: Seattle, WA

EI,
I am by no means the expert on any thing bike related at this point, but here goes. With vertical drops you are going to either have to have the exact chain length to work with the chosen gears or a chain tensioner. It seems highly unlikely that you would have much fun trying to find the right Chainring, cog, and chain length combo. The Horizontal drops allow you a little slop and flexibility to modify later. My Fuji has enough travel to let me flip my wheel and go with the 16T freewheel. A real fixed gear frame has long horizontal drops that open to the rear. I assume this is to prevent the wheel from pulling out of the drops if the nuts come loose while riding. NO QR LEVERS ON THE REAR WHEEL! The other option is to carry two chains, a chain whip, spare cog, chain tool, and crescent wrench.

I would recommend becoming familiar with the now famous Denny/Derrick table that shows the GI and Skid Patch. Decide where you want to start as far as your first cog and chainring. BTW, you might want to talk with BtAG about the freewheel option and dual brakes - based on your recent knee trouble.
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eternalignorance
Posted: Sun Apr 02, 2006 9:17 pm Reply with quote
Joined: 08 Jan 2006 Posts: 359 Location: Imaginary Places

oh yeah, if I ever had a fix or even ss it would have both brakes, also because I like to skid :)
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leah
Posted: Mon Apr 03, 2006 1:01 pm Reply with quote
elder Joined: 10 Feb 2006 Posts: 594 Location: The Bucket

eternalignorance wrote:
oh yeah, if I ever had a fix or even ss it would have both brakes, also because I like to skid :)


i'm under the impression that you can't skid on a ss....

and on a fixed, keep your brakes at first. you'll be surprised at how much stronger than you your bike is.

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henry
Posted: Mon Apr 03, 2006 1:05 pm Reply with quote
somewhat piggish Joined: 05 Aug 2005 Posts: 5415 Location: on porch with shotgun

leah wrote:


i'm under the impression that you can't skid on a ss....

quick directions:

while travelling forward at speed, pull hard on rear brake lever.

works every time.

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dennyt
Posted: Mon Apr 03, 2006 1:31 pm Reply with quote
rocket mechanic Joined: 02 Aug 2005 Posts: 2708

Unless you're riding Lee's road bike.

OOOHHHH!!!!
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lantius
Posted: Mon Apr 03, 2006 1:33 pm Reply with quote
1337 Joined: 22 Jul 2005 Posts: 6705 Location: right over

dennyt wrote:
Unless you're riding Lee's road bike.

OOOHHHH!!!!

man i had some scary stops riding that thing around. like full on, 99% front braking it trying to come to a stop and the rear wheel is lifting off the ground - but still spinning.

new brake pads? yeah, i'm gonna get some of that.
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Torch
Posted: Mon Apr 03, 2006 2:06 pm Reply with quote
Terrance Joined: 24 Jul 2005 Posts: 1637 Location: Amsterdam, The Netherlands

you should have asked me directly, because i'm apparently a hardcore fixie enthusiast.

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joby
Posted: Mon Apr 03, 2006 2:22 pm Reply with quote
goes to eleven Joined: 25 Jul 2005 Posts: 3899 Location: The Cloud

You know what I heard?

"If it an't broke, don't fix it."
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leah
Posted: Mon Apr 03, 2006 3:24 pm Reply with quote
elder Joined: 10 Feb 2006 Posts: 594 Location: The Bucket

eternalignorance wrote:
oh yeah, if I ever had a fix or even ss it would have both brakes, also because I like to skid :)


for some inane reason i read this as stephan wanting neither brakes.

carry on

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