hey thinking of getting this 150 nitrous NEW ATOMIK NITROUS MID SIZE 150CC PIT MOTOR DIRT BIKE (eBay item 350419934097 end time 08-Dec-10 20:45:55 AEDST) : Cars, Bikes, Boats but im going to change the shock to make the bike a bit lower will this shock fit on this bike 270MM FASTACE BS-22AR Rear Shock PIT DIRT BIKE XR50 SDG - eBay (item 150520973684 end time Dec-15-10 23:32:05 PST)