RE: [CR]BB height, what's considered high or low?

(Example: Framebuilders:Masi)

Content-class: urn:content-classes:message
Subject: RE: [CR]BB height, what's considered high or low?
Date: Sun, 31 Dec 2006 15:22:29 -0800
In-Reply-To: <c1f.ca6a8f7.32c9999d@aol.com>
Thread-Topic: [CR]BB height, what's considered high or low?
Thread-Index: AcctLqLN22+hjvodRzm37TE4WjSRIwAAoPjg
From: "Mark Bulgier" <Mark@bulgier.net>
To: <classicrendezvous@bikelist.org>


Phil Brown wrote:
> Modern bikes used with clipless pedals can have lower BBs
> than bikes using toeclips. I built one with a real low
> 9-3/4" BB as an experiment and you need to ride it with
> clipless pedals otherwise the clips ground when you're
> putting your foot in.

Well strictly speaking there is not a "need" to grind the toeclips while getting in -- with practice you can get into the clips with no grinding even with a very low BB. It certainly is easier to get in on a bike with a 10-1/2" BB height though - no special technique needed.

I've known some builders who built touring bikes with a higher BB than their racing bikes, on the theory that racers were more likely to learn the technique, and/or accept some toeclip grinding in exchange for better handling. Tourists are often in no hurry to get into the clips and might ride a while with clips dangling.

Mark Bulgier
Seattle WA USA