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This article was removed once, because of the criterion biography notability. I agree with the point that the article needs sources, but from my site of view it may be removed. I tried to find sources with google (and speed skating handbook by Gemser et al.), but sources are difficult to find (or not at all). This looks like kind of original work from Mogema or Diederik Hol himself (speculation, i can't prove). Of course this is not forbidden, but this may lead to an unneutral article. For example:
"Diederik Hol was pivotal in the design evolution of the modern clapskate"
Sources please, current designs have nothing to do with diederik hol's clapskate
Edited to explain Hol's involvement at the time, Source of Hol's bio added
"... the Rotrax skate, a multiple-hinge frame that ensures more powerful push-off and thus higher speed."
Sources needed, rotrax skate is not used by world class elite skaters. This is strange beacuse the arcticle sys it allows a more powerful push off.
Edited to change language - 'ensures' was a commercial claim - article now indicates the development intent of the Rotrax skate.
"Results came little more than 2 years later with worldwide inline racing success on the Dual Box frames."
Links or examlples to the results would be nice.
Agreed, exemplar elite skaters of the period who wore Dual Box skates to World Inline Cup and World Championship victories have been included.
"... the first Mogema design for ice skates and one which represented a radical departure from the pre-bent traditional racing blades."
Huh??
Poorly explained, I agree. Edited for clarity of information and comparison.
I also tagged the article with POV because indeed, the article boasts the inventions of Diederik Hol without regard to how well they've done in the market. However, I do think the article must be kept. It is about the man behind not one, but two major inline skating brands.
