I have a brand new Bike E tandem Crankset, never used, kept in plastic, no scratches , no sun exposure, no shelf wear, no problem at all, this would work on ANY tandem that uses the four sided crank spindle. Keep in mind please, that this is NOT an e bike crank which would indicate/include an electric motor. Its for a Bike brand named Bike E,,,the tandem model,, Complete 270 plus ship. Prefer local. 989 573 three seven eight zero,,,, any time, please leave message if no anwer, I can NOT receive text on this phone at all. VOICE ONLY,,,,,OR USE REPLY BOX FOR EMAIL PLEASE