Ron,
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I just put new wheels from Western Roller on my F38. ? They fit perfectly and work great. ?
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My original wheels seemed to be in flawless condition and were still soft and pliable. ? ?However, they did not work well at all. ?
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Western Roller item number 1040-0020013. ? 120mm X 60mm tapered ID for split hubs. ? 70 Duro. ??
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-Rusty