Common on European utility bikes, a front wheel stabilizer makes loading front racks simpler.
It is a spring connecting the fork to the down tube. It adds a subtle self centering action to the front wheel, making loading and unloading of a bike with a frame fixed front carrier, or say… Dutch panniers….much easier. You don’t fight the bike while putting stuff in it. The front of the bike stays put. The spring offers some resistance to steering, so it counteracts deflections from hitting potholes and road debris, too.
It’s sized for bikes with a down tube of 1-1/4″ (31.8mm) or smaller (get the large size for bikes with 38mm-62mm down tubes). It connects to the fork via the brake pivot hole. The hole diameter is made for nutted calipers or a M6 bolt. For recessed mount calipers, minor modification with a drill or a file is necessary.
The wheel stabilizer is rust resistant, includes all the required brackets and hardware, and has a pinch guard to cover the torsion spring. The little knob adjusts the spring tension.
Small: fits 31.8mm or 1″1/4 inch down tubes
Large: fits 38mm-62mm down tubes