<---------- Bike World 09-1978 ----------> Taking The Mystery Out Of Derailleurs
Date: 07/11/2009
Views: 814
Pedals - 04
PEDALS:
MAVIC 640 - quill style pedals - high strength tempered steel axles - Clear anodized one-piece cast aluminum bodies - post 1983 C.N.D. (...Couche Noir Dure) hardened anodized interchangeable Zicral (7075 T6 aluminum alloy) cages with rear kick tab - post 1983 C.N.D. hardened anodized hexagonal dust caps - precision stainless steel annular sealed bearings (ball bearings - outer / needle bearings - inner) - 9/16" x 20 TPI thread - model 640 : Christophe "Z" Special toe clips - size Large (65 mm long) - Clear anodized aluminum alloy - post 1975 logo - model Competition "Z" 496s : Christophe "Z" leather straps (Tan) - post 1975 printed not embossed logo (Silver) - aluminum alloy buckles, rivets, pinch rollers - model Competition "Z" 526 ... [Introduced in 1984 as a successor to the original MAVIC 600 pedal, the most visually notable difference between the model 640 and its predecessor was the fact that its cages were no longer crafted from non-anodized Duralumin but rather Zicral (7075 T6 aluminum alloy) which was then given a durable C.N.D. (...Couche Noir Dure) hardened anodized finish. Upon closer examination, however, one will also notice that the cast aluminum body of the 640 underwent a bit of streamlining in its revision to accommodate a new high strength steel axle as well as improved precision annular sealed bearings which, similar to the earlier 600, consisted of needle type bearings nearest the crank arm and ball type bearings at the outer end. While MAVIC would introduce their model 645 or "LOOK System" style of branded clipless pedal in 1988, both it and the more traditional model 640 quill type pedal were only produced through model year 1991, at which point MAVIC dropped both pedals from their lineup and effectively abandoned that particular component market niche altogether. With respect to those aluminum toe clips and straps selected for use here, the matched Christophe "Z" pairing made their debut in 1976 and continued on in production through the latter half of the 1980’s - ultimately proving to be the lightest combination of their kind ever mass marketed to the cycling public.]