The Radical 100 is a lot like a German sports car. It combines state of the art technology, sleek styling and an unmatched fit to create a platform that has the potential to beat anything on the road. The Radical 100 has K2's Four Hundred Longmount Frame and 100mm Star Grip poured wheels and ILQ-9 bearings. Whether you are going on a long training skate or competing in a marathon, the Radical 100 is the logical choice for speed junkies everywhere

The Radical features K2's low-cut "Marathon" cuff. The newly designed cuff is lower than those found on typical fitness skates but not as low as those found on racing boots.

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

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