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SHIMANO 10-speed up (again, again,..)(4 posts)

SHIMANO 10-speed up (again, again,..)morency
Mar 1, 2003 1:10 AM
just read in a Belgian Newspaper (translated):
"Armstrong is testing secret weapon for use during Tour de France:
The japanese componentsconstructor shimano is working on a new DERAILLEUR. Along with others, Lance Armstrong is testing the prototype. The cassette will be a 10-speed or more. You will not see it yet in first season races because the pro's are only using it on training for now. Introduction is planned during the Tour de France."

A few years ago someone told me that he had seen a prototype 6-speed casette that had movable teeth, pushing a button made the cogs to go open and another teeth was inserted, making 11 teeth go to 12,.., 25 to 26 teeth.
If this would be it, they could make a 10-speed casette with teeth 11-13-15-17-19-21-23-25-27-29 and you would have the possibility to change it to 12-14-16-18-20-22-24-26-28-30. With a triple that would give 60 different gears! If 60 gears really are usefull is another story.

Just a guess...
Sounds like something from Inspector Gadget....bent_spoke
Mar 1, 2003 8:48 AM
...how about a few Bond girls while you're at it.
Talk about over interpretation!Kerry
Mar 1, 2003 4:40 PM
All this is saying is that racers will have S10 this season, while it will hit the market in the fall. These other schemes have been patented for about 100 years and never been made to work competively against "fixed" cogs/rings and derailleurs. One hits the market every 10 years or so, but even Shimano ("inventor" of BioPace) wouldn't be dumb enough to try them.
re: SHIMANO 10-speed derailleurscyclopathic
Mar 2, 2003 7:03 AM
they probably can't use current ones since they're going to new chain.