Yeah, the TALON is probably small.
A motorcycle is around 300lbs, but varies wildly. A late-model Harley Fatboy is like 700lbs.
A drone would be made as light as possible, using advanced materials, but that would be limited by armor and weapons (which are gonna be heavier than normal materials) and cost (lighter = more expensive).
So, yeah...in short...that's a tough one.
Maybe we can find a larger current-tech drone than the TALON. Maybe the Big Dog? But it walks, not on tracks...*mutter*...*mutter* *mutter*....
-Jn-
Ifriti Sophist