K2 Radical Pro is the first recreational skate to offer 110mm wheel on a production skate. K2's 110/100 Hi/Low frame uses 2 x 110mm wheels at the rear and 2 x 100mm wheels in the front.  This allows K2 to keep the frame length to a minimum while taking advantage of the extra roll 110mm wheels offer.

The Radical Pro also features K2's latest version "Marathon" cuff. This redesigned cuff is lower than those found on typical fitness skates but not as low as those found on racing boots.

The Radical Pro boot is fully heat moldable, just like high-end racing boots, with a base of carbon composite.

The Radical Pro is for the serious skater --- someone who likes the support of a cuff but also likes the low cut of a race boot.