Re: [CR]New IRD Freewheels for classic bikes


Date: Mon, 02 Oct 2006 08:17:41 -0500
From: John Thompson <JohnThompson@new.rr.com>
Organization: The Crimson Permanent Assurance
To: CR List <classicrendezvous@bikelist.org>
Subject: Re: [CR]New IRD Freewheels for classic bikes
References: <200610011729.k91HTjlb006068@cascade.cs.ubc.ca> <3.0.6.32.20061001170936.00841100@mailhost.oxford.net> <452083A1.4030803@new.rr.com> <75d04b480610012032w59a1aa23r79795cf9e30db7c6@mail.gmail.com>
In-Reply-To: <75d04b480610012032w59a1aa23r79795cf9e30db7c6@mail.gmail.com>


Kurt Sperry wrote:
> I'm not sure how using a smaller big ring will help much when you need
> a low gear. Most cranks are at or near the limit constrained by the BCD
> on the inner ring, so for most on topic bikes the only way to broaden
> the range down low is to use larger freewheel cogs.

You're right, of course, but you just need to use the right cranks! :-)

My favorites are TA (minimum 26T), Stronglight 99 (minimum 28T), and Zeus (minimum 36T). One of my bikes has a TA double with 43-30 rings. Two more have Zeus with 48-36 and 47-40. Another has Stronglight 99 with 45-34. My old 53-42 Super Record crank has been retired.

--

-John Thompson (john@os2.dhs.org)
Appleton WI USA