Fricking Super Ride!
True, but I don't think that's what it means.
According to the Specialized website, it means "Future Shock, Rear"
L8R
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"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW, What a Ride!" - unknown
"Your Bike Sucks" - Sky Yaeger