Rockhopper 2010 vs 2011> size difference

Looking for a used Rockhopper but theres a size difference in 2010 models and 2012. 2010 they do 17" and 2011> they started doing 17.5 ?
Is there really much difference ?
http://www.specialized.com/gb/gb/bikes/archive/2010/rockhoppersl/rockhoppersl#geometry 2010
http://www.specialized.com/gb/gb/bikes/ ... r#geometry 2012
Is there really much difference ?
http://www.specialized.com/gb/gb/bikes/archive/2010/rockhoppersl/rockhoppersl#geometry 2010
http://www.specialized.com/gb/gb/bikes/ ... r#geometry 2012
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VOODOO CANZO
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Just wondered why they added on the extra half inch. If it would make any difference.
Am assuming the 17" is a medium frame ?
viewtopic.php?t=12566711
VOODOO CANZO
Come and see me at https://www.facebook.com/biketyke/