Re: [CR] Gearing ratios

(Example: History:Ted Ernst)

Date: Tue, 8 Sep 2009 10:03:33 -0400
From: "John Betmanis" <johnb@oxford.net>
To: <classicrendezvous@bikelist.org>
References: <84445.73336.qm@web110609.mail.gq1.yahoo.com>
In-Reply-To: <84445.73336.qm@web110609.mail.gq1.yahoo.com>
Subject: Re: [CR] Gearing ratios


Steve Whitting wrote:
> FYI - Depending on the wheel/tire size, a 52x14 combination may not equal a 100-inch gear. If you want to accurately plot your gear inches, check out:
>
> http://www.sheldonbrown.com/gears/
>
> Note that gear inches for 52x14 runs slightly lower with narrow sew-ups than with typical 27-inch clincher wheels (98 inches vs. 100.7 inches).
> Technically that's quite true. However, I've always used the nominal 27" for calculating gears for both 27" clinchers and tubulars. A couple of inches doesn't make a noticeable difference (to me, anyway).

(I sure hope this reply doesn't come out mangled. I just switched from my trusted old Eudora Light to Thunderbird for my mail.) -- John Betmanis - Woodstock, Ontario, Canada