Interbike 2009 – Mavic’s 950g R-SYS Ultimate Carbon Road Wheels

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INTERBIKE 2009 – Mavic had two ridiculously lightweight wheelsets on display, and this is one of them: The R-SYS Ultimate prototype.

They have a claimed weight of 950g per set, and the front wheel is under 400g!  (With their permission, we tried to weigh them, but Mavic’s people couldn’t get them un-bolted without seriously altering the display…thanks for trying, though!)  Mavic says these have been riding in this year’s Giro d’Italia, and they’re being developed as proof-of-concept of what they’re capable of from an engineering standpoint.

The wheels are tubular-only and are basically a fully bonded construction.

Hit ‘more’ for additional photos…

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Tubular-only full carbon rims.

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Yep, bonded.  No nipples to twist.  Not on the wheels anyway, I’m sure your roommate/lover isn’t too far away…

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Other than the internals, the rear driveside flange appears to be the only non-carbon fiber bit on the wheels.

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OK, the axle caps are alloy, too.

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There is absolutely no planned release date or pricing on these at present, and this is one of only 10 pair of the R-SYS Ultimates in existence and the only one in the U.S.

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