Periscope

I recently picked up a used 2005 Co-Motion Periscope with less than 300 miles on it. Problem is that the original owner or shop installed the stoker toe straps incorrectly and the buckle scraped the drive train side crank arm pretty badly, leaving a deep groove. I am not overly concerned about the structural impact as my eight year old will be riding stoker.

I thought I would reach out on the off chance that someone out there has upgraded from the ISIS vintage cranks or someone might know where I can find a replacement arm I would be interested in any help. Let me know what you have and what you want.

Thanks,

Warren