Rollerskate/Cruiser Skateboard Wheels Blue Marble Smoke 65mm 81a Pack of 4+Abec 7 Bearings 

Also could be used for Brompton rear carrier upgrades or other applications, due to the flush flat face on the back side of the wheel.

The wheels have been described as hard wearing but grippy and smooth rolling by users.

Brand new unused

Diameter: 65mm

Width: 35mm

Hardness: 81a

Core: offset

Compound: Grip

Pack of 4 wheels

Colour: Blue Marble Smoke

Includes:

Abec 7 Bearings x 8 pieces ( 2pc per wheel)

Hole through middle of bearings for Axel etc : 8mm.

NB.

Does not include wheel spaces : core spacing 7mm.

"Core Spacing" This this the space in the center of the wheel core,  between the bearings, roller skates would usually have an alloy or steel spacer to offer support between the bearings, skateboards seldom use this but is advised for longevity.

For other uses such as Brompton Carrier wheel upgrades the lateral load on the bearings is so slight spacers are not necessary.