Originally posted by fastharry
what exactly happened with the arm..(its a little hard to tell)..did it break,bend?...
how hard was that hit?......That arm was one of my concerns...Esp. when used on USA med tracks with boards...
You should not worry about the arm, it just scrubbed a bit nothing else happen.
Truly, my point is the 2nd spur gear...
In my opinion, dont use stock aluminium pillow ball for rear joint. The old steel one will holds your rear hub better coz it has longer thread.
I think our concrete wall that surrounding track (only half meter away from asphalt) is more solid than your boards ...
Can you believe if it still break apart ?? We have to repair the 4" tall wall in some corner twice this year.