Re: [CR] Straight gauge vs. butted Aelle

(Example: Component Manufacturers:Chater-Lea)

Date: Mon, 15 Mar 2010 11:52:43 -0500
From: "John Thompson" <>
Organization: The Crimson Permanent Assurance
References: <>
In-Reply-To: <>
Subject: Re: [CR] Straight gauge vs. butted Aelle

On 03/15/2010 10:53 AM, Paul A. Grens wrote:
> Howdy,
> The recent talk about butted Columbus Aelle tubing has got me wondering about my '84 Cilo here. It was built with Aelle tubing (lugged), fitted with a Shimano 600ex 6207 friction non-aero group throughout except for seatpost and stem, Gipiemme dropouts and fork ends, and brazed-on top tube brake cable guides. I've looked through the archives and found no exact specifications on tube ID/OD and seatpost size for the butted vs. straight gauge tubing.
> By my best measurement with a well-used, non-digital caliper, the seat tube OD seems to be 28.6mm and it takes a 26.2mm post (post is stamped 26.2). Would this be normal for the straight gauge tubeset or could it possibly be the butted version? I have read that straight gauge Aelle has been spec'd to a 26.8mm seatpost, but I have no first-hand knowledge of this.
> The original decal featured an "A" with extended legs, gold background. Due its location in the typical repair stand clamping area, it was damaged when I got the bike. I replaced it but there are certain details of the replacement decal that are different (the "A" lost its legs). Here are the photos:
> At any rate, if anyone out there cares to send me the year/make/group, seat tube OD, decal type and seatpost size off-list, I'll compile a range and post it to the list in a week. Just a thought, but I figured it would streamline the archive purposes a bit.
> Looking forward to your thoughts.

According to my 1980s vintage Columbus catalog, Aelle is straight-gauge except for the steer tube:


-John Thompson (
Appleton WI USA