Re: [CR]Why are dropouts joined by tongue in groove, not lugged?

Example: Production Builders

Date: Sat, 6 May 2006 10:56:16 -0400 (EDT)
From: Nick Zatezalo <>
To: Don Wilson <>, Classic Rendezvous <>
Subject: Re: [CR]Why are dropouts joined by tongue in groove, not lugged?


I think this frame has something similar to what you are talking about for lugged drop outs.

These have been available for quite some time, however I think they are just really ugly. May require less of the builder's time, but still ugly.

The way a framebuilder melds the drops to the frame has always been one of my favorite details on a frame. The plug in drops just don't do it for me.

Nick Zatezalo Atlanta,Ga

-----Original Message-----

>From: Don Wilson <>

>Sent: May 6, 2006 10:06 AM

>To: Classic Rendezvous <>

>Subject: [CR]Why are dropouts joined by tongue in groove, not lugged?


>I've always wondered why drop outs were attached

>tongue in groove rather than by a lug (i.e., a stay

>inserted into a cylindrical end on a dropout). A lug

>would seem a stronger joint and, could likely be

>engineered and machined to be quite light. Fabrication

>seems technologically feasible. Assembly seems no more

>difficult, perhaps even easier. A lugged bike might

>look more unified (and beautiful) in appearance with

>matching lugs at the frame ends and frame joints,

>rather than tongue in groove at the frame ends and

>lugs at the frame joints? Perhaps the KOF frame

>builders could weigh in here and explain why tongue in

>groove is preferred. I assume it must be superior for

>some reason, or it would not be done, but I'd like to

>understand why?


>Don Wilson

>Los Olivos, CA


>D.C. Wilson


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