I see on Sram website , this fork weight 1361g
but at chainreaction have 2 fork with same name, but price and weight difirence

Rock Shox SID RLT Dual Air Forks 2012 : 1480g

Rock Shox SID RLT Dual Air Forks 2012 | Buy Online | ChainReactionCycles.com

Rock Shox SID RLT Dual Air PushLoc Forks 2012 : 1361g

Rock Shox SID RLT Dual Air PushLoc Forks 2012 | Buy Online | ChainReactionCycles.com

what difirence ?