Bicycle Rubber Seat Stem Donut Trailer Hitch

Rubber bike trailer hitch fastens around the bicycle seat stem.  Requires no bike mount hitch, which will make a bike trailer very flexible to switch between bikes on a long cross-country trip.  Fits inside a 3/4" X 3/4" square tube. Can be easily shaved down to fit in other smaller tubes. Color may vary from black or blue as pictured. 
Rubber bike trailer hitch fastens around the bicycle seat stem.  Requires no bike mount hitch, which will make a bike trailer very flexible to switch between bikes on a long cross-country trip.  Fits inside a 3/4 X 3/4 square tube. Can be easily shaved down to fit in other smaller tubes. Color may vary from black or blue as pictured. 

Bicycle rack for rear of Element

Randoms: Grips, Goggles, Bib Shorts, & Bike Racks - Across the Pond Beaver - Pinkbike

Yakima Thru-Axle Fork Bike Rack Adapter (Black) (15 x 110mm (Boost)) - Dan's Comp

Shop the Best Selection of dirt bike tire changing Products

Man rear-ended while biking with child in trailer speaks out – BikePortland

1958-1964 All Makes All Models Parts, 153951, 1958-64 Impala; Lower Control Arms; Rubber Bushings; Pair

Close up: I used an old 1-1/8 stem with a 28.6 shim on the 27.2 seatpost to fit correctly, Motored Bikes

Pro Taper Universal Rubber Mount Kit - 02-2822A - Dennis Kirk

Ventura Zinc Coated Bicycle Trailer Hitch for seat tube or seatpost clamp

Maximize pet safety and comfort while taking your fuzzy friend on a bike ride, can hold one pet up to 50 lbs Unique folding frame and quick release

Schwinn Rascal Bike Dog Trailer, Carrier for Small and Large Pets, Easy Folding Cart Frame, Quick Release Wheel, Universal Bicycle Coupler, Washable

Xtracycle/Big Dummy Rear Trailer Hitch

Almost universal fit to trailers Steel construction; heavy-duty to hold up to 132 + lbs Zinc coating to help protect against rust For mounting on the

Ventura Zinc Coated Bicycle Trailer Hitch

Pinkbike Poll: What's Your Ideal Two Bike Quiver? - Pinkbike