I had 4 of these available, just 1remaining now. All very lightly used and in excellent condition. One of the boxes is for a different version of the Thule bike carrier - it's just the box, the carriers are all 598s with the newer clamp design that prevents the bike falling out.
eBay
4Pcs Roof Rack Lock Set with 4 Keys Fits Thule Halfords Roof Bars Cycle Carriers Secure Barrel Locks for Roof Boxes Replacement
Aliexpress UK
Lockable - bike to bike carrier, bike carrier to load carrier (locks included). Fulfils the City Crash norm. The maximum allowed weight per bike is 17 Kg. The functional and easy to use bike carrier fulfilling all basic needs.
eBay
2SET For Thule Halfords Roof Bars Cycle Carriers Exterior Parts Car Locks Roof Bar Rack Barrel Security Locks With 2 Keys
Aliexpress UK
Designed to fit all types of roof bar - see Thule for confirmation of roof bar fit. Photo of bike on rack - use to show how bike fits - car, roof bars and bike not included in the sale ! High quality roof carrier made to exacting standards and Swedish designed, made of aluminium and coloured black.
eBay
3PCS 20X20mm*M6*35mm T-bolts Fit For Thule Free Ride 532 T Track Roof Mount Cycle Carrier Screws Studs Bolt
Aliexpress UK
Designed to fit all types of roof bar - see Thule for confirmation of roof bar fit. Photo of bike on rack - use to show how bike fits - car, roof bars and bike not included in the sale !
eBay
ROCKBROS Bike Bicycle Rack Suction Roof-Top Bike Car Racks Carrier Quick Install Bike Roof Rack MTB Mountain Road Bike Accessory
Aliexpress UK
Used Thule FreeRide roof top bike rack aluminium- good condition Functional and easy-to-use upright bike rack fulfilling all basic needs. Designed for bikes up to 17kg Easy and firm bike fixation on stable frame holder Firm wheel fixation, with quick release wheel straps Locks the bike to the bike rack and the bike rack to the roof racks (locks and keys included) Fits round frame dimensions 22-70 mm Fits maximum oval frame dimensions 65 x 80 mm Max tire width 3 in Max wheel size (diameter) 16-29" Check Thule website for FreeRider to see if compatible with your roof rack Seems to fit most roof racks but please check
eBay
ROCKBROS Bike Bicycle Rack Suction Roof-Top Bike Car Racks Carrier Quick Install Bike Roof Rack MTB Mountain Road Bike Accessory
Aliexpress UK
Very good condition used Thule 591 bike rack. Note there is a very subtle Audi logo on the black plastic parts that the bike wheel attaches to. Stored in dry garage when not used. Comes with 2 keys. For sale as I now have a Towbar mounted rack.
eBay
For Thule Lock Cores & Key Replacement Key Cylinder For Thule Bike Rack Roof Racks Ski Rack Cross Bars Towers Kayak Rack
Aliexpress UK
The Thule Velo Vise Roof Mounted Cycle Carrier is a premium bike carrier designed to securely hold your bike on the roof of your vehicle. Made from aluminium, this carrier is durable and resistant to theft with its lockable feature. The Thule brand is known for its high-quality products, and this is no exception, with its adjustable straps for easy bike fitting and its removable design for convenience. Perfect for transporting your bike to your destination securely. A few years old now but in perfect working condition with 2 keys. Accepts square roof bars, I cannot vouch for aero bars these may work if 34mm or less across.
eBay
ROCKBROS Vacuum Suction Roof-Top Bike Carrier Rack for Car MTB Bicycle Rack Sucker Car Roof Road Mountain Bike Universal Holder
Aliexpress UK
Thule UpRide 599 Roof Mount Cycle Carrier. Locks the bike to the rack and the bike rack to the vehicle - locks included. Your browser does not support videos. Ratchet wheel strap to quickly secure back wheel to the tray.
eBay
10 Pcs perfeclan Durable Bike Straps Adjustable Stabilizer Stonger Thule Replacement Bike Carrier Rack Straps Tie Downs
Aliexpress UK