These trucks can be used under almost any pre-1970 built 70-ton rolling stock

Bullet MT tires

Tread (F/R): 218mm/215mm

allowing this fan to be used with many 1/10

Red: PHB6174Red

HPI 108021 Aluminum Rear Hub Carrier Set (0 Degree) Scorpion Parts These trucks can be usedHPI 108021 Aluminum Rear Hub Carrier Set (0 Degree) This genuine HPI Racing option set includes aluminum rear hub carriers with a 0 degree setting. Aluminum construction stands up to hard driving far better than worn plastic, keeping your rear suspension geometry consistent lap after lap. The carriers install in place of the stock parts for a straightforward upgrade that adds durability and a clean machined look. Genuine HPI Racing option part #108021