MAFAC Top 63
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Category:  Brakes
Name:  MAFAC Top 63
Brand:  MAFAC
Model:  Top 63
Years:  1963 - ?
Country:  France
Added By: nprenet on 11/10/07
Updated By: marcs on 03/21/11
Additional Photos - click for full size
MAFAC Top 63MAFAC Top 63MAFAC Top 63MAFAC Top 63
Design Category Center PullCable Adjuster
Quick Release NoAttachment Bolt TypeExterior Nut
Cable Attachment BoltStraddle Cable - Double EndedFront of Arm MarkingsMafac "Top 63"
Back of Arm MarkingsReach CategoryStandard Reach
Min ReachMax Reach
General Information
The Top 63 is the most sought after of Mafac brakes amongst collectors solely because of its rarity .  It remained in production for only a few years. From a Mafac advertisement (1964):
"Made from forged light alloy metal AG.5 which has the resistance of steel... Adjustable center stirrup. The two members slide into each other and thus the correct size brake is obtained to fit racing cycles of different dimensions... Brake shoes on the "Top 63" can be adjusted to the correct angle to face the rim positively and at the same time..."

Notice the braze-on adaptation on a Alex Singer, in the last picture.
Quality:Rarity:
 
 
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Additional Resources
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Resources:Reference & ChartsCatalogs
Brand Information(click to expand)

MAFAC, or Manufacture Auvergnoise de Freins et Accessoires pour Cycles, was a French manufacturer of bicycle brakes, tool kits, and racks. MAFAC was founded in post-war France under the name "Securite" which was changed to MAFAC in the fall of 1947. Initially MAFAC manufactured cantilever brakes, brake levers, and tool kits. Later MAFAC brakes were of a center-pull design where a cross cable links the two arms of the brake, which is actuated by pulling from the center of this cable. MAFAC's rubber brake hoods, originating in the late 1940's, had built-in adjusters, allowing a rider to adjust the brakes while riding. Additionally the center-pull brakes were of a design that allowed them to clear fenders, front rack mounts, handle bar mount bags, and large tires. This versatility made MAFAC brakes one of the most popular models from the late 1950's through the 1970's. The ability to clear larger diameter tires also led to the use of MAFAC brakes on many of the earliest mountain bikes, including one of the first package-built mountain bikes, the 1982 Specialized Stumpjumper. The center-pulls were solid brakes and were well made, but were relatively inexpensive. This put MAFAC in the enviable position their components being specified on everything from the highest end race bikes to run of the mill bikes. The lack of exclusivity in the brand, however, may have contributed to MAFAC's disappearance in the 1980's.

 
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