After the popular re-working of the Fluid 4 anti-rocker frame into the Fluid 5 flat setup frame, it follows that Kizer update and upgrade this further with the introduction of the Kizer Fluid V "Superfluid" Flat Frames.

What's Superfluid?
Apart from the juvenile jokes we can all come up with, Superfluid represents an upgraded material that is lighter, stronger and faster than the standard (team) Fluid 5 frame. Composed of special nylon with added carbon material, this makes the frame better for all-round performance. 

You may say that nothing was wrong with the Fluid 5 or the Fluid 4, but the modern rollerblader's standards are slightly different from before, and Kizer has quickly made some adjustments to their most reliable frame range.

The H-Block groove is shallower, better accommodating grinding positions. The H-Block also uses slight wheel cupping of the middle wheels. This will help you from sticking up on grinds when using a flat setup.  

The maximum wheel size for a flat setup has changed, too. You'll now be able to ride 61 mm flat. 

Small - 245mm - Best for UK5-UK8/EU38-EU42/US6-US9
Large - 270mm - Best for UK9-UK11/EU43-EU46/US10-US12

(mm lengths measured from centre of the 1st bolt to centre of the 4th bolt. All frame sizes will fit on all skate sizes, the size guide listed is just a guide. e.g If you prefer longer frames on a smaller boot you can fit a Medium frame to a UK5 boot etc)