I bought a pair of Olympic Tread MTB Shoes at a sale from Chris Willemse Cycles a year or two ago. (I think it was their last pair and they do not stock it anymore). A few weeks ago I noticed one of the laces of the Atop system was almost chafed through. I could not find any replacement lace anywhere on Google - so I sent a enquiry email to the manufacturers in Taiwan (that was 23 April 2019). I received an email the same day - they will see who the suppliers in SA are and if they can sort out the problem. On 02 May I received an email from Gordon Gassert, product development manager from Bolton Footware in Elsies River, asking for my address so they can send me a replacement system. A few minutes ago, RAM Couriers delivered a complete set, right and left, including the lace, gear & knob (if that is what is what it is called) and the spanner to do the job. A quick Youtube video on replacing it and all done! Not often one gets service like that anymore! All credit to Atop Taiwan and Bolton Footware SA.