South Korea has always been part of the most innovative countries as for speed skating technology. The brand Youngjoo Precision has released quite an original set-up lately, with speed skating frames combining 4 wheels of 100, 110 mm and 120 mm. The model is called Fierce.
With a length of 336 mm (13.2 in) and a weight of 180 g, the Fierce lowers the skater's gravity center in placing the 100 mm wheel under the front fixing point of the boot. Thanks to its many oblong holes, it can adjust to 165 and 195 mm interaxial spacings. On the other hand, no one told us where to find 120 mm wheels!
Thanks to Anthony Prieur