Hey board
I have recently, ok November, acquired a tire-truing machine and need help with figuring out the best “shaving” method. Details are unclear about the machine. It seems to be of 50’s era construction and is well made. To “true” a tire, you install the wheel/tire assembly onto a shaft and crank up the spinning drum to contact the assembly and start spinning the tire. At the other end of the machine, is a high-speed rotating, circular knife that is mounted onto a pantograph platform that swings this rotating knife in a pre-selected “arch” as you “true” your tire. The rubber is cut off in strips as apposed to ground rubber dust like they do in re-treading.
As I intend to race a motorcycle this year over 200mph, No one shaves tires for motorcycles anymore. This is why I bought this machine. I understand the ‘concept “ of shaving tires is suppose to make a tire safer, and I know how to use my machine. I just need input. I have also had inquiries to shave tires for other competitors.
1)Mr. O’Daly, the new rules on motorcycle tires require 2/3rds of the tread removed (up from 50% removal from long time rules) Please define “TREAD”. Is this lip-to-lip? Or is just contact area acceptable? Please give us your insight, and what you will be looking for to tech a shaven tire.
2)Board, please help with your experiences on patterns, contours, and any other info you can on tire shaving.
3)I could use contact info about people who use to shave tires so I can get their input.
The end result is about safe tires. Any info will be greatly appreciated!
Yours in sport
Kent Riches