David Auker
I rather like the old, original(?) Burley clamp which grips both seat
and chain stays; I see this as helping to alleviate stress on the
dropout itself, going to the actual tubes. I think I'd rather trust the
tubes' integrity than the glued-in dropouts!
I have enhanced mine with extra rubber, so the grip seems firm (yet
gentle on the paint).
I haven't really examined the clamp system Mark mentions, but perhaps
one of its benefits is stress to both dropouts via the axle. I still
thing going to the tubes themselves better. (That left heel-strike
potential IS tedious, though!)
David
Mark J. Ginsberg wrote:
> If this design causes you concern, burley make an after marker clamp
> that removes the one which connects as you decribe and replaces the
> rear quick release, and attached to their q/r with a pin.
>
> Also moves the trailer further back, so your left heel doesn't his the
> mounting hardware on shorter chainstayed bicycles.
>
> Mark Ginsberg
>
> */Nikos Tzetos /* wrote:
>
> Hello:
>
> I have an oldish Alan frame and am often using it to pull a Burley
> trailer with one or two children. The trailer attachment mechanism
> is designed to exert stress on three points on the left rear
> triangle, torquing the frame around the dropout, a very simple and
> effective design. Does anyone have any experience with fatigue of
> the glued components in that area and possible damage to the frame?
>
> Thank you,
>
> Nikos
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>
> Mark J. Ginsberg
> Attorney At Law
> 621 SW Morrison St., Ste. 900
> Portland, OR 97204
> (503) 542-3000
> Fax (503) 227-2530
> markjginsberg@yahoo.com
> www.bikesafetylaw.com
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