Universal Bike Trailer Hitch Coupler vs Jingzan M10 x 1.0 Trailer Hitch Adapter

Buy the Universal kit if you have a quick-release rear wheel, a nutted axle with a standard U-bolt fit, or more than one bike to share a trailer between. Buy the Jingzan 2-pack only if your rear axle is a solid M10 x 1.0 threaded axle, since it screws on directly and is the cleaner, more secure fit for that setup. The Universal kit is the more versatile part and covers the widest range of bikes; the Jingzan is a narrow, single-purpose adapter that does one job well.

• Choose the Universal kit if your bike has a quick-release skewer or a nutted axle you can clamp with U-bolts, or if you want to move one trailer across several bikes.
• Choose the Jingzan 2-pack if your rear wheel uses a solid M10 x 1.0 threaded axle and you want a screw-on adapter with a matching flange nut.