The Standard Lockrack Bracket fits most Aero Bar Style roofracks that have a channel down the middle. This includes Yakima, Rhino, Prorack, Whispbar, Thule and Rola among others.
If your roof rack resembles the one pictured above the Standard Bracket will work. This type of bracket is supplied with the Lockracks.
If you have a Heavy Duty Lockrack (As pictured above), you will need the Heavy Duty Adaptors - Click here >>
If you have a Square bar style roof rack, as per above, then the Square bar adaptor is required. Click here >>
If you have an Aero Style bar, but it does not have the channel running down the middle, as per above, then you will need the Universal Adaptors. Click Here >>
If you have a Platform style rack on your vehicle, the Standard Bracket will work, however in some cases the Lockrack base may require a new hole to be drilled in order to line up with the bars. And in some cases the key may need to be trimmed slightly to ensure it can turn adequately. Best to use this - #61021 - Pioneer Accessory Bar with Zwifloc | (rhinorack.com)