From the source:

Hammer Head Pro Sled

hammerhead

Costco is dedicated to providing products of outstanding quality and value, and as part of our constant efforts to ensure ongoing customer satisfaction and highest safety standards; on the advice of our supplier we have decided to issue a safety notice, due to fault found in the product.

This fault accounts for less than 1% of the products sold and no incidents/injuries have so far been reported.

Costco Wholesale UK imported Hammer head Pro Sled from Kwik Tek pty ltd.

This safety notice only relates to units purchased between February 2014 and January 2015 from Costco wholesale UK.

Kwik Tek has advised that there is possibility that the front handle bar assembly could break, posing a crash hazard while in use.

Consumers should immediately stop using the sled until the faulty part has been replaced.

For further information please call Costco Wholesale on 01923 830 529 Monday to Friday 8am – 5pm.

Source & More Info

CostCo UK Recalls Hammerhead Pro Sled