I too would really like to know the answer to this question as well...
I've had the CAT SX, B44, TRF501, and now the TRF511. I'm curious about the DEX...There is a big price difference here in the USA between the DEX and every other 4WD.
For the US style tracks I've run, I've found the B44's front end to be too fragile, the CAT SX too twitchy. Took way too much work to get it to handle well and stripped spur gears.
The TRF501 handles great and in the two years I've raced it, only broke a couple parts that were my fault.
The TRF511 handles great but the standard arms are weak and break constantly...
I want to know if the DEX is the shiznits....
TIA
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