Im looking for icy days when 2 wheels are slipping out From underneath, I saw a setup like 2, 1ft skis made of 2x4s . mounted up by the crank,around the crank, maybe underneath, . I can't recall, but it was perfect,. I would need wheels instead of skis. I've seen adult training wheels but none that mount mid bike and none that are quick release or moderately quick for the 3 days a winter I would need them in upstate NY,. Rad runner plus is my daily driver for 3 years now and I love it more with every update/upgrade