Roof bike rack

Thule Circuit

Low-profile fork-mount bike rack for security, convenience, and aerodynamic styling.



  • Easy to secure the bike to the carrier with the locking skewer (lock and cylinder sold separately)
  • Fast loading and security provided by lockable skewer with same-side adjustment dial (locks sold separately)
  • Versatile design compatible with standard 9mm axles and most disc brakes
  • Easy to install with universal tool-free mounting
  • Integrated wheel cradle high-wall design provides protection and perfect fit beneath your wheel
  • Low-profile aluminum tray made from corrosion-resistant aluminum to withstand the elements
  • Secure the rear wheel quickly with the ratcheting wheel strap
  • Locks the bike to the bike rack and the bike rack to the roof racks with Thule One-Key lock cylinder (sold separately)
  • Fits Thule rack systems, round bars, and most factory racks with around the bar tool-free mounting

Technical specifications

Load capacity 15.9 kg
Dimensions 140 x 22 x 13 cm
Weight 2.8 kg
Fits round frame dimensions All
Thru-axle compatible Adapter/s required
Carbon fork dropout compatible
Fits roof racks with 20x20 mm T-tracks
Fits roof racks with 24x30 mm T-tracks
Fits Thule SquareBar
One Key System compatible
Model number 526XT
Spare parts



Thule BringIt! GuaranteeThule is dedicated to providing exceptional products that are quality tested and guaranteed against defects in materials and workmanship.

View warranty details


This rail I wouldn't buy again


Not a fan of how the rail clamps to the cross bars. When my road bike is clamped in, the front mount wobbles with everything completely tight. When the through axle adapter is mounted in no matter how tight the Thule skewer is, the adaptor Rolls forward causing the bike to slide forward.




Dumb Design


I can't believe that a standard mountain bike suspension fork (15 mm) doesn't fit. I have to buy a dumb adapter, which doesn't even lock and costs another $60.00. Ugh. So incredibly disappointing. Very unhappy.


Tacoma, WA


Fits everything!


Fantastic rack, very dependable!

The Rackologist



Thule Circuit

2.7 3


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