Over the years I have fixed many frozen chain adjuster bolts that are froze in the swing arm and will not turn. I have drilled and milled them out. That is not the funnest thing to do and the customer doesn’t Ent to pay for the time to drill them out.
So this is the easiest thing or way to fix...
I have been working on some performance head inserts for the KTM 150 SX. I
CNC Machined them from billet 6061. KTM left some good room for improvement.
Two different configurations - they look the same but they are different.
Testing will tell how they do.
Good stuff guys!
I rebuild and true a lot of cranks - probably two a week. I just true them up good. I have only played with the math for balancing a crank (deep math there-makes my brain hurt) . I have measured and weighed stock cranks but never actually added or took off weight of the crank...
The latest suspension oriented project off of the milling machine.
The Showa fork caps use a 50mm 8 sided cap profile and the Sachs uses a 50mm 10 sided fork cap.
Don't mar up your fork cap use the correct tool.