Back to top

Please select a color/color.


  • Will fit all Thule 1.25- and 2-in. hitch mounted bicycle carriers—also prevents rack from wobbling while transporting bikes
  • Hardware, lock cylinder, 2 lock keys and 1 change key included


Thule Racks

View all Thule Bike Rack Accessories

REI membership


Best Use Cycling
Rated 2 out of 5 by from Good rack stabilization, but expensive This product stabilizes the rack quite well. There is very little wobble in the rack when it's installed. The lock will prevent "thefts of opportunity". However, someone with a crowbar or who strikes it with a few swift blows from a hammer will probably be able to break the lock off. The product is grossly overpriced--a more appropriate and fair cost would be about 1/2 what they are charging. That's a Thule issue, not an REI issue.
Date published: 2011-07-01
Rated 4 out of 5 by from Solid necessary It is what it is, your basic hitch mount lock. It should come standard with the bike rack.
Date published: 2013-08-08
Rated 4 out of 5 by from Pretty good , but... Use of this item gives me a secure feeling. Take care however, not to screw the doggone thing into your hitch, no matter how much the wrench tempts you. It just adds complexity to the whole affair. If you look at the pin that most receiver hitches come with, you won't see threads. Screw the Thule pin in, & you may forget to remove the thing & in two years or so, it'll rust into place--so just slip it in and attach the lock knob. For me, the pin came loose only with WD-40 and an arduous crank on a wrench. Much thanks to local auto parts store for their help.
Date published: 2010-01-20
Rated 3 out of 5 by from Good, but spendy Effective, but wary wary expensive at [$]. If you get complacent and leave the hitch rack on the car with this screwed into your rack, prepare for an herculean effort removing the bolt--it will rust in--either don't screw it in or remove your rack at the end of cycling season. Also, my Thule bike rack that this fits has a hole too small for a normal sized hitch pin. You'll need to drill or file it larger. Don't lose the keys as did I.Cheers
Date published: 2010-08-23
Rated 2 out of 5 by from Does not stop rattling While the product gives you the option of locking your rack onto your car, it definitely does not make the rack fit any more snug onto your car. It uses the exact same bolt as your rack comes with, but its slightly longer to allow a lock to be attached. In my opinion, my rack is not any more snug with this product than it was without the product. Also, it is quite expensive for being so basic.
Date published: 2014-09-19
Rated 4 out of 5 by from Good Idea This works as advertised. It is an easy way to help protect the hitch-mounted bike rack from theft. It is steel so it will rust. Do not leave it in the hitch when not in use.
Date published: 2013-10-03
Rated 4 out of 5 by from Expensive but worth it. I have Thule Vertex XT 2 Bike Hitch Rack and the fitting sucks in the 1.25 hitch mount. The rack would wobble unless you use the bolt but than someone might steal your bike rack. I would put a little water proof grease on the threading/shaft if you plan to leave the bike rack on all the time.
Date published: 2015-08-06
Rated 5 out of 5 by from protects my hitch-mounted bike rack from theft installation was easy, directions were clear; I am not very mechanical so this was important to me; the product fit even though the trailer-light connection was immediately to the left of the hitch
Date published: 2014-10-03
  • y_2017, m_6, d_25, h_11
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_12
  • loc_en_US, sid_755164, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_rei-inc
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 162ms
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 86ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;