Thursday, December 8, 2016

Wheels Part 4: The Answer

If you want lightness, and are willing to accept the fact that Azusa spindles are the best option then the answer is the 20" cart wheel with a 5/8" axle bore. There is no better wheel available for the money. It's pretty obvious what the advantages are. In addition I have found that the hub bore of this wheel is SAE 1-3/8".

I was able to get 4 of these for $200 from Kingston Saddlery.

And they are very robust. I did some additional research while writing this and determined that there is a catalog of wheels generally referred to as 'cart wheels' that come with 1/2", 3/8", 5/8", and 3/4" hubs. Most of these scenarios come with an outside bore diameter of 1-3/8" which is easy to space away from for a rear axle. YES FOR THE REAR AXLE.

Now along the way I realized that often times the motorcycles, cruiser bikes, and lawnmowers that use this wheel have a flange plate for a disc. Either a brake disc or a sprocket can be added to this wheel by using the space between the bearing and the outside bore. Its easy to accomplish this with a machine lathe and some aluminum stock, but finding a suitable part online is tricky.

I was able to find this guy, and it will work perfectly for any key hub, or brake plate.

Martin Split Tapered Bushing (Sintered Metal)

This will shim between a 1.25" axle and a 1.625" hub bore. Also it is keyed, so I can lock this to the axle. This solves all my problems locking a lightweight durable wheel to a 1.25" axle. This is the answer. -CW

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