Originally Posted by afm
If you can't get the original TM or the optionals from K Factory, you can use the ones for Kyosho...they are 9mm dia. as well...they are a perfect match....try and find who has Kyosho spares in your area.
Forget about Mugen's they are smaller...
AFM
true! im using RRR titanium pivot ball by kawahara.
they are exactly the same size.