No aluminum upgrades yet. So far so good with the nylons under lightly loaded medium speed (~54mph) use.
MT10 and Rusty both use flanged steel locknuts on the axle. Have used aluminum locknuts on the axle. Prefer steel. Cheers. 'AC'
Here is a set of Low-Profile Belted P-L Street Fighters mounted to the Rustler. Wide 12mm spacer up front, narrow 12mm spacer at the rear. P-L specs the belted Street Fighters to 70mph. Bought them for speed running the MT10. P-L also specs them for the Rustler and Slash. Aluminum spacers...