The original GP4 was made like all traditional tubular rims. It started as a flat peice of aluminum, and was folded over (you can usually see the seam down the middle on the tire side) and rolled.
The second GP4 is an extrusion.
Peter Jon White Peter White Cycles 24 Hall Rd. Hillsborough, NH 03244 603 478 0900 Phone 603 478 0902 Phax Peter@PeterWhiteCycles.com http://www.PeterWhiteCycles.com
> Everytime I think I know a bit, along comes another item to confound me.
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> First question. There appears to be two Mavic GP 4 rims out there. An
earlier lighter version (around 400 grams) and a later version (the one I am
familiar with), designed to be super strong and weigh the same as a middling
clincher rim at 480 grams. Is there a way from the labels to detect which
is which? Of course if you have a bare rim, you can weigh it, but the ones
I have are in built wheels.
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> 2nd question. Does anyone remember a Mavic "Sport" rim? Rim is polished
silver, with a rectangular Mavic label, the red with gold inside old style.
Hubs on the rims appear to be late 70's, which checks with the rim label (I
think). Does anyone know the weight and intended use of these rims?
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> Thanks again for your collective brains and patience.
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> Tom (gonna ride dem tubies again soon!) Adams, Shrewsbury NJ
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> STOP MORE SPAM with