This is Carver’s hybrid surf and skate truck.
On the one hand it’s a lightweight standard RKP (Reverse King Pin) hanger and base, on the other it has a patented geometry that squeezes every bit of turn and pump from the system.
This means that you can pump this truck like a C7, but it lands airs and rides fakie with more stability as well. It has a similar feel to the C7 but is less extreme, so if you want a more longboard skate than surf skate but want to pump and surf, then the CX is the truck you want. If you want a truck that is as close to surfing on land as possible, check out the C7
Axle length is 9 inches, suit decks 8.5 inch to 10 inch wide.