Re: [CR]New IRD Freewheels for classic bikes

Date: Mon, 02 Oct 2006 08:17:41 -0500
From: John Thompson <>
Organization: The Crimson Permanent Assurance
To: CR List <>
Subject: Re: [CR]New IRD Freewheels for classic bikes
References: <> <> <> <>
In-Reply-To: <>

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 (
Appleton WI USA