Our laser cut Hub Flange Discs will make it easier for you to build your own delta trike wheels and save you time on your project. This Hub Flange Disc is made with 24 spoke holes so that you can build wheels directly onto any 3/4" axle using rims with 48 spokes.
The Hub Flange Discs are made of steel and are approximately 1/8 inch thick as required by the plans. Spoke holes are 7/64" in diameter so that standard bicycles spokes can be used.
Our Hub Flange Discs come in several varieties with various spoke hole counts and axle hole diameters. Each of our DIY plans offer a recommended axle size and spoke count, but you can certainly change this to suit your design needs or parts availability. For instance, the Aurora Trike can be built using rims with 36 spokes rather than 48 spokes, or the DeltaWolf can be made using a 3/4 inch axle rather than a 5/8 inch axle. Please make sure that you order the correct Hub Flange Disc size for your project.
To keep costs to a minimum, our Hub Flange Discs are laser cut from flat sheet metal. Each disc will have a small imperfection on the outer edge and inner edge where the laser started cutting out the disc. There is also a mill scale on the surface of the metal that will need to be removed using sandpaper or a sanding disc. Neither of these imperfections will compromise the strength of the disc, and once they are built onto your hubs and painted, the imperfections will be unnoticeable.
The surfaces of the Hub Flange Discs are coated with a mill scale at the factory to help protect the metal from oxidation. This coating easily be removed using a sanding disc to prepare the part for painting. The laser cut edges are also somewhat sharp, so they need to be smoothed off using the sanding disc by running it lightly around the edge once.
Once the mill scale has been removed from the Hub Flange Discs, the spoke holes will need to be beveled slightly to remove the sharp edges around the holes. This is done so that the spoke exiting the flange is not cut by the sharp edges of the hole. To bevel the spoke holes, use a 3/16 inch drill bit and push lightly into the hole until a small bevel is made.
The beveled spoke holes are shown here after running pressing lightly with the 3/16 inch drill bit to remove the sharp edges. The Hub Flange Disc is now ready to be welded to your delta trike axle.
Remember, our Hub Flange Discs are sold as a set of four matching discs, and there are several versions available, so please choose the correct number of spoke holes and axle diameter for your project. These discs are manufactured to keep costs to a minimum, so you will need to bevel the spoke holes and prep the surface for painting, an operation that will only take a few minutes per disc.
All of our DIY Delta Trike Plans make use of these Hub Flange Discs, which allow you to lace a rim directly to the rear axle. By integrating the flanges directly onto the axles, you’ll save some money instead of needing to have complex and expensive machined hub parts made. Our trike plans also include instructions on how to make these parts from scratch, as well as a drawing that can be sent to a machine shop in case you want to make your own hub flanges.
Our goal is to offer parts that save you both time and money when building your own DIY bike or trike project. For more details and to order, visit the AtomicZombie store.