These are pretty big for size but doer cute and comfy. Also, I have a female bike (tilted frame) so I had to install it at an angle and still worked perfectly! Cumple ms expectativas *** follow up**** they actually fit her GREAT! Update 10/22/20:Love the mount but I would only use it for road biking. The hitch sticks out very slightly passed the rear bumper, not as far as the spare on the back (see pics). These are a great little headphone for the cost, just what I wanted, sound quality is great, easy to use, eady to charge. But buds do not fit well, constantly fall out, and when in ear, are very uncomfortable. Would not recommend! They over-complicated the strapping mechanism.