Yep, big front 17” front wheel with 290mm discs. I have the 16.5” front wheel with 320mm discs but according to better informed people, the 290 discs make for a better turn in!
I’m just building a trick bike because I have the bits and I can. The colour of the rear arm and the type of air box are irrelevant to me for this project, I just wanted to remain as period as I could with the best parts available to me. As time goes on I’ll add more trick parts as and if they become available. It’s nice to have freedom to do as I wish without the frustration of restoring road bikes to factory spec.
Difference Between Cast and Billet What is the difference between cast aluminum and billet aluminum? What do you mean you don't know...? Alright well then CPM Industries is here to help. Hopefully by now you understand how aluminum is casted, but if you are new to our blog don't worry, we will review. To create an aluminum casting, one must first create a mold of the part that is to be created. The mold is formed when the pattern is pushed into chemically binded sand leaving the impression of the part to be casted. Once the mold is complete the molten aluminum is poured into the mold and allowed to cool and harden. Once the molten aluminum solidifies, the mold is pulled apart and out comes the desired part. On the other hand, billet aluminum is formed in a completely different manner. To understand completely how a billet aluminum part is made, it is necessary to understand what a billet is. A billet is a solid block of aluminum (or any material) with the size depending on the size of your desired part. The larger the desired part, the larger the billet. Contrary to casting, billet parts are created by removing excess material from the billet, essentially the part is carved out of solid aluminum.
