RackLocks offer increased rigidity, added safety for passengers, and weatherproofing for your FreeRadical frame.
Required for use when carrying children by Xtracycle, RackLocks created a safety-tested, structural lock between your vertical aluminum racks and your EdgeRunner or FreeRadical frame. Do not leave home without them. RackLocks come standard with all EdgeRunners, and will now come standard with all FreeRadical bundles (X0, X1, Freight) and Cargo Joe bundles (X0, X1, Freight).
RackLocks and Big Dummy: RackLocks are spec'd for 25.4mm (OD) steel tubing, and 22.2mm (OD) alloy racks. Tolerances are less than .03mm. Surly frames and racks may be made to different specs and we do not recommend use of RackLocks on the Surly Big Dummy. RackLocks may be forced to fit the BigDummy, but they may not function in their intended manner of locking racks to bike, thus we do not warranty the use of RackLocks on non-Xtracycle product.