The polymer is holding up well. It is bolted into the frame from between the seatstays into the seat tube. It may be a tad noisey in cold weather. I weigh 232 lbs and rode ~20 miles this afternoon in 43 degree weather....no cracks in the polymer.How is the iso zone on that bike holding up. Is it held on with some industrial adhesive or is it bolted on or what? Any signs of cracking or noise in cold temperature?
Mine aren't.Shimano XT brakes? Arent they disk brake? I didn't know you could mount disk brakes on a bike that originally came with V-brakes. I didn't think there was any way to mount them?