Old 02-23-12, 02:28 AM
Join Date: Feb 2012
Location: Silicon Valley
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Bikes: Trek Hybrid; Trek 520 frame, the rest is what I like.

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That and horizontal dropouts.
On fixies you need a means to adjust your chain tension; geared bikes (commonly with vertical drop outs) will use an idler mechanism, usually built into the rear derailleur. Since this isn't an option for fixies, the rear dropout is a slot so you can move your rear wheel fore and aft to adjust the chain tension.

Last edited by tmeisen; 02-23-12 at 02:29 AM. Reason: spelling
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