Specification of Dynam RC Hobby 5.5 inch Big Smooth Surface Foam Rubber Wheels

Outer diameter : 140mm (5.5")
Inner diameter : 30mm(1.18")

Axis hole diameter : 3.7mm(0.146``) or 4.2mm(0.165``) can be chosen.
Height : 45mm(1.77``)

Weight : Around 98g (3.5oz) each wheel

Application : Dynam Primo, Dynam DHC-2 Beaver, any airplanes with the suitable installation dimensions and off road and taxing requirements.

Features :
Durable, super elastic. Works well on grass & paved runways, added metal fittings.
The wall thickness is consistent throughout the wheel giving you a balanced tire.