While adhering to the same performance design principles as the original Oysi Inline Skating Chassis, we’ve packaged a similar skating experience into a more compact form to complement smaller boot sizes.

The Oysi Medium Chassis⁶⁵ is designed to ride flat using a combination of 65mm outer and 58mm inner wheels and is available in either 257mm or 269mm wheelbase lengths, both providing the same thoughtfully contoured groove centered between a 127mm middle wheel split.

Effective use of the space beneath your feet yields an uncompromised groove, responsive control, and low profile.

Featuring a 5.7mm lower ride height and 4.2mm reduction in groove height, the Oysi Medium Chassis⁶⁵ is designed to hug your soul.

Designed and Manufactured in the USA. (Sold in Pairs.)

Familiarize yourself with the chassis by reviewing the .

Please review our  and utilize our  to help with determining your wheel selection.

( Max Outer Wheel Diameter: 68mm | Max Inner Wheel Diameter: 60.00mm )

Fitment of 63mm through 68mm wheels on the outer axles to create a clear recess above the chassis mounting plane. 

For sizing information please see our 

Please note that the inner sidewall spacers usually require a press fit. Demonstration of how to do this using common tools is provided here –