Mountain Bike Wagon Hitch with Capped Post
Created today
Description
What it's for
A hitch that lets a mountain bike pull a wagon by its C-shaped handle. The bike side is a clamp block that grips the frame tube with a pinch bolt; a flat arm carries that back to an upright post. The post ends in a 12 mm neck with a flared cap on top, so the wagon's C-handle drops over it and cannot slide off while you ride.
- Clamp block with a 22 mm bore and a single pinch bolt — check this bore against your actual seat stay or axle tube before printing, and scale the clamp if your tube differs
- Flat arm sets the post behind the clamp, clear of the frame
- Capped neck holds the handle on but still lifts off when you want to unhitch
Dimensions
- Overall footprint on the plate: 50 × 83 × 38 mm
- Clamp bore: 22 mm
- Post neck: 12 mm diameter, about 22 mm tall, with a flared cap above it
Print notes
Print the part as oriented on the plate so the clamp bore and the neck stay round and the arm keeps its strength across the layer lines. A tough filament such as PETG or ABS/ASA suits a part that takes trail vibration and towing loads better than plain PLA.
Remix ideas
- Resize the clamp bore for thinner or thicker frame tubes, or split the clamp into a two-bolt version for rougher trails
- Lengthen the arm to move the post further back for wider cargo or tighter frame clearance
- Swap the capped neck for a ball or pin joint if you want the wagon handle to pivot more freely
Images
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