>I just picked up a Motobecane frame and fork from a shop and it's missing
>it's proprietary bizarro seatpost clamp.This thing wraps around the seat
>tube below the stays and uses a threaded bolt to secure the post. Someone
>suggested it was made by Atax. If anyone has one for sale I would love to
>buy it...alternatively, does anyone know of a good workaround for securing a
>post in these frames?
>Thanks
>Warren Young
You didn't say what year it was, but I'm guessing it may be around '83 or '84. My '77 Moto has normal seatpost lugs currently being secured with a Campy recessed seatpost bolt. But the Moto I bought for my wife in '84 had a black plastic collar and aluminum bolt that went around the downtube just above the seatstays (much like they use on some aluminum-framed ATB bikes nowadays.
Finding parts to restore my Moto has been difficult, but I suggest contacting Classic Bikes (http://classicbikes.essexbusinesslink.com/) and Renaissance Cycles (http://www.Renaissance-cycles.com/). They've both been able to find obscure stuff for me.