Probably depends on the length of the rider’s foot. The catalysts are designed to bridge the entire arch of the foot. It works even with my huge feet, removing the concentration of pressure from the ball of the foot. According to the hype on the Pedalling innovations page, optimal efficiency will be achieved only in this centered orientation. YMMV. Works for me. The MKS pedals are almost an inch shorter, I believe, but they may well provide the same experience to riders with feet smaller than mine.
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