4 inch (102mm) PU Wheel Tires with Copper Hub Pair of 2

4in/102mm PU Wheels RC Airplane Wheels Upgraded PU Wheels

Polyurethane wheels are more durable and have a longer lifespan than rubber wheels. They also provide better shock absorption .  

Polyurethane wheels are also resistant to chemicals, oils, and grease, which can cause damage to rubber wheels.

Features:

-      Upgraded PU formula

-      Core of bore retrofitted copper pipe, force balanced and wear-resistant

-      Oxide sandblasting processing, copper aluminum hub

-      Size: 4inch, D102*H35*Φ5mm

The Axle hole is 5MM

-      Weight: 98g