3 x 1-1/4 PROF wheel with 5/16 PB
8 x 2 Mono-pneumatic wheel 1/2 BB
6 x 2 Mono-Pheumatic wheel 1/2 FBB
4 x 1-1/4 Pro Wheel 1/2 PBB
4 x 1-1/4 Protech flat wheel 3/8 PBB
3-1/2 x 1-1/4 Performa wheel with Delrin bearing 3/8 bore
