Photo submitted by Andy Wiedrich, Warranty Manager at University Bicycles in Boulder, CO,

We are reviving our Mystery Pic series! If you have any idea what this part is, please let us know in the comments section. This…

  Photo submitted by Stacy Grosch. If you think you know what this part is, post your answer in the ‘comments’ section. To send in…

Photo submitted by Matty Bates, “Some brakes we found on a Trek. I’ve never seen anything like it.” If you think you know what this part…

Photo from the folks at First Flight Bicycles. If you think you know what this part is, post your answer in the ‘comments’ section– the correct answer…

Photos from Nick Crumpton of Crumpton Cycles. Closeup after the break. If you think you know what this is, post your answer in the ‘comments’…

Found on our local trails in Greensboro, NC. What bar do you think this is? Answer will be posted tomorrow with additional photos. **updated** answer and…

Photo from the folks at First Flight Bicycles. If you think you know what this part is, post your answer in the ‘comments’ section– the correct answer…

Photo from the folks at First Flight Bicycles. If you think you know what this part is, post your answer in the ‘comments’ section– the correct answer…

Photo from the folks at First Flight Bicycles. If you think you know what this part is, post your answer in the ‘comments’ section– the correct answer…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this part is (yes, we see the logo on the…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, post your answer in the ‘comments’ section– the…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, post your answer in the ‘comments’ section– the…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, post your answer in the ‘comments’ section– the…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, post your answer in the ‘comments’ section– the…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, post your answer in the ‘comments’ section– the…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, post your answer in the ‘comments’ section– the…

This week’s photo is submitted by Anton from Mec’Azur. If you think you know what this is, post your answer in the ‘comments’ section– the correct…

This week’s photo is submitted by the folks at Marks Bike Shop in Harrisonburg, VA. If you think you know what this is, post your answer in…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, post your answer in the ‘comments’ section– the…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, post your answer in the ‘comments’ section– the…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, post your answer in the ‘comments’ section– the…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, post your answer in the ‘comments’ section– the…

Today’s pics are from Piermont Bicycle Connection: “We had a customer drop these off for our Ebay for credit program. Neither the customer nor any…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, post your answer in the ‘comments’ section– the…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, post your answer in the ‘comments’ section– the…

Photo submitted by Federico, “Here is a really weird object, from the collection of my dear friend Emilio Zanzi, a passionate old bicycle mechanic.” Federico sent…

Photo from the collection of Jeff Archer of First Flight Bicycles. If you think you know what this is, post your answer in the ‘comments’ section– the…