CJ skates a balanced mix of street, skatepark and big-ramp so wanted a wheel size which was easily adaptable over all disciplines. CJ felt the 60's carried their speed well enough without compromising too much on acceleration. Go Project created the urethane a little harder than previous wheels so they are faster. The small core still allows for enough give in the urethane to create a good 'footprint' (for grip) and shock absorption.
Go Project spent the best part of a year testing new materials for the hub. They managed to fully extract the colour pigmentation out of the core this time leaving a stronger hub material. Go Project also changed the way the hub is bonded to the urethane 'tyre' so the wheel is now more resistant to de-coring. That said, the wheels have a 1 year warranty against de-coring and core fracturing incase you find an anomaly!
The Go Project 60mm wheel mould was created from scratch for this project meaning that this compound / size / profile combination is not repeated by any other manufacturers in the industry.