Spiffy rear rack mount
#1
Thread Starter
car guy, recovering


Joined: Nov 2008
Posts: 1,255
Likes: 9
From: Mount Vernon, NY
Bikes: Olympia Competizione & Special Piuma, Frejus track circa 1958, Dahon Helios, many others
Spiffy rear rack mount
Here's what I did at work this morning, instead of earn a living:





Pletscher racks are cool: strong, simple, well-designed and cheap. They have two flaws. The rat-trap thingy is heavy & useless, and their seat stay clamp is responsible for almost as much frame disfigurement as kickstands. I removed the spring-loaded part and got rid of the clamp, bolting the rack to the brake pivots instead.
I modified an old MAFAC brake bridge by cutting off the pivots & drilling the out spring bosses. The Pletscher rack needed two reliefs cut to clear the offset part of the bridge: after that it was a straightforward drill-&-bolt job. The rack's legs were also shortened a bit to get the angle right and to get the rack as low as practical. If I were to carry a lot of weight, I'd add a second leg forward of the first to reduce bending loads on the brake.
Pletscher racks are cool: strong, simple, well-designed and cheap. They have two flaws. The rat-trap thingy is heavy & useless, and their seat stay clamp is responsible for almost as much frame disfigurement as kickstands. I removed the spring-loaded part and got rid of the clamp, bolting the rack to the brake pivots instead.
I modified an old MAFAC brake bridge by cutting off the pivots & drilling the out spring bosses. The Pletscher rack needed two reliefs cut to clear the offset part of the bridge: after that it was a straightforward drill-&-bolt job. The rack's legs were also shortened a bit to get the angle right and to get the rack as low as practical. If I were to carry a lot of weight, I'd add a second leg forward of the first to reduce bending loads on the brake.
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Michael Shiffer
EuroMeccanicany.com
Michael Shiffer
EuroMeccanicany.com
#5
Thread Starter
car guy, recovering


Joined: Nov 2008
Posts: 1,255
Likes: 9
From: Mount Vernon, NY
Bikes: Olympia Competizione & Special Piuma, Frejus track circa 1958, Dahon Helios, many others
On a Frejus?
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Michael Shiffer
EuroMeccanicany.com
Michael Shiffer
EuroMeccanicany.com
#6
Senior Member


Joined: Aug 2010
Posts: 1,763
Likes: 3
From: Toronto
Bikes: Pinarello Veneto, Pinarello Montello, Bianchi Celeste
i'm taking the design to china, getting it mass produced then i'm gonna sell them all over the North America and the world and i'm gonna make millions..
j/k... it's really nice, great work! keeps everything clean and smooth
j/k... it's really nice, great work! keeps everything clean and smooth





