Joined: Feb 2012
Posts: 19,362
Likes: 5,503
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Is there a part number on the back side of the crank arm, usually near the pedal eye? You have a Shimano crankset. They are well known for changing dimensional specs every few market cycles. But they do a good job at marking crank arms to allow you to search for specific stuff (only to find out sometimes that no one supports that version any longer...) Andy