Joined: Feb 2012
Posts: 19,354
Likes: 5,472
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
Not that this is likely but a "loose" crank arm could be a worn spindle hole. This would require the replacement of the crank arm. But this is easy to check for. Andy.