Re: AW: [CR]Lightweight "Woman's" frames. Seat post diameter?

Date: Mon, 29 Dec 2008 08:39:54 -0600
To: M-gineering <info@m-gineering.nl>
From: "Mark Stonich" <mark@bikesmithdesign.com>
Subject: Re: AW: [CR]Lightweight "Woman's" frames. Seat post diameter?
In-Reply-To: <4957ABC2.70109@m-gineering.nl>
References: <681C48A023AD4FF8AF6EDE544CC55254@Twinhead>
cc: classicrendezvous@bikelist.org

At 12/28/2008 05:39 PM +0100, M-gineering wrote:
>If you want vertical compliance either use fatter tyres or proper suspension.

Marten, Since my goal is to build a lighter bike, neither of these is an option.
>The duty of the frame is to keep the wheels in line.

The beauty of frames that are not the traditional "diamond frame" is that you can introduce vertical compliance with little, if any, loss of lateral or torsional stiffness.

I've built recumbents with orders of magnitude more vertical compliance than I'll ever get with this machine. Handled quite well thank you. http://bikesmithdesign.com/MyBikes/Pumpkin1.jpg

Mark Stonich;
     BikeSmith Design & Fabrication
       5349 Elliot Ave S. Minneapolis, Minnesota 55417 USA
            Ph. (612) 824-2372 http://bikesmithdesign.com
                        http://mnhpva.org