The Street > The Bike Shop
The "what the hell is Odyssey / Gspprt cooking up" thread.
Admiral Ackbar:
didn't/dont companies doing pivotal seats have to pay something to macneil or whatever to use the design?
Mychaylo:
--- Quote from: Admiral Ackbar on October 22, 2014, 11:50:50 AM ---didn't/dont companies doing pivotal seats have to pay something to macneil or whatever to use the design?
--- End quote ---
yes they do. Glad that Miron might come out of bmx comfortably.
barcodebilly:
Not anymore iirc.
G:
--- Quote from: BilboBaggins on October 22, 2014, 05:32:51 PM ---Not anymore iirc.
--- End quote ---
You remember incorrectly.
Pivotal is still something that has to be paid for, as is Tripod. Socket drive is FREE to use.
Socket drive is starting to pick up now that Spline drive is turning into such a clusterfuck of sizes. By doing socket drive sprockets companies have a choice of making cranks that directly incorporate the socket drive or any spline they like and then an appropriate adaptor.
Currently, there is one size for 3/4" (19mm) splines.
Then there is 22mm spline for Taiwan made cranks OR 22mm Profile spline (unfortunately they are just different enough for this to be a pig, the Profile one will fit onto Taiwan cranks (although it's a pretty loose wobbly fit) but the Taiwan one will NOT fit on Profile 22mm splines (in fact even the Profile spline sprockets on Profile cranks are a very difficult install due to tightness).
Then of course there is the 15/16" (24mm approx) spline that is starting to come on line.
For bike shops to stock several sprocket designs in different tooth numbers, colours AND then add numerous spline drive options is obviously getting pretty crazy. So doing socket drive for all sprockets and then just stocking a few adaptors is a much more appealing option.
So far there are about 3 companies doing socket drive sprockets but several more ore working on it.
I hope this makes sense.
:)
G.
barcodebilly:
Hmmmm. My bad I thought I read something about the MacNeil patent being up and whatever. Maybe I'm cracked out.
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