Strange discovery this but occurance has it that the heals of my cycling shoes have little holes in them through wear. I had been getting rattling noises coming from my shoes so i opened the holes a bit and out dropped 2 perfectly formed round balls of dirt from each shoe. I didnt think much of it and carried on as normal and then a couple of days later the same rattling noise and the same perfectly formed balls of dirt dropped out.
Strange discovery this but occurance has it that the heals of my cycling shoes have little holes in them through wear. I had been getting rattling noises coming from my shoes so i opened the holes a bit and out dropped 2 perfectly formed round balls of dirt from each shoe. I didnt think much of it and carried on as normal and then a couple of days later the same rattling noise and the same perfectly formed balls of dirt dropped out.
Strange eh.