This is the just released DL55 Has a .3 more HP than the DL50 and weighs 20g less. Specs. 5.5HP @ 7500rpm Idle @ 1350rpm 14.2 Kg Torque @ 100 meters 12.5 Kg Torque @ 1800 meters Prop Size 22 x 8, 22 x 10, 23 x 8, 23 x 10 Spark Plug - NGK CM6 Parame...