Proven Part 2- Foam Filled Tires 9X3.5-4 No-Flat Solid Compatible With 2 Wheel Velke System Fits 72410088 VKXWheel 10816 Includers Bearings Fits 77410031 77410030 VKXRLBRG VKXBRGRTNR

These Are 2 Foam Filled Puncture Proof Tires Size 9X3.5-4.

Hub Length: 2 1/4" Offset
Tread: Traction,
Type: Solid Foam No Flat
Includes: Grease Zerk To Keep Bearings Smooth

Fits Part Numbers 72410088, Vkxwheel, and 10816. 

Compatible with The Two Wheel Velke System, Not for The Single Wheel System.

Included Inside The Rim Is One Roller Bearing and Two Bearing Retainers.

The Roller Bearing Fit Part Numbers 77410031 and Vkxrlbrg and The Bearing Retainers Fit Part Numbers 77410030 and Vkxbrgrtnr. .

Flat Free Tires Provide The Bounce and Load Handling Characteristics Similar To An Air-Filled Tire with The Benefit Of Never Going Flat.