14 to 17 mm hexes.

...Those are the new HPI rims? Gees we are all thinking along the same lines arent we :D

...I had a 17mm set of HellFire rims on my E-Sav which takes 14mm stock...I just used the 17mm alloy hexes that HPI puts in with the X-Sav...They worked fine...No problems at all...I had to crank them down pretty hard which i 'felt' was making them bind a little but it was just a feeling...They ran great though...

...umm i think the hexes and the dedicated nuts for the rims cost me about 10 USD all up...

UPDATE: Hello, My name is Purkle Reign...