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Salsa Rack Lock seat collar



Neat way to fit a rack to a frame without top rack mounts

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

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Simple this: if you have a bike without rack mounts on the seat stays, and you want to fit a rack, pop off your standard seat collar and fit this Rack Lock from Salsa instead.

Obviously it'll still do the job of keeping your seatpost in the right place but welded on to the rear is a barrel with both ends tapped out with an M5 thread, so you can attach your rack to it. That means the pinch bolt is round the front, which keeps it out of the way of mucky spray from the rear wheel (if you don't have mudguards) which is an added bonus.

What about the bottom of your rack? Well, if you have eyelets then you're sorted, otherwise you'll need an assortment of P-clips and swear words.

Basically this is an ideal solution for getting a rack on a bike that has mudguard eyelets at the rear dropout, but no rack mounts; that's quite a lot of bikes these days. I've used it with a low-profile Tortec Velocity rack and it's done the job with zero fuss. There's not really a lot more to say about it: if that's your problem, this is the solution. It's available in 30.0, 32.0 and 35.0mm diameters for different frames.


Neat way to fit a rack to a frame without top rack mounts test report

Make and model: Salsa Rack Lock seat collar

Size tested: Black, 30.0mm

Tell us what the product is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?

Rack-Locks are one part form, two parts function. Sure, they still look great and do a great job of keeping your seatpost in place, but they also provide a mounting position for the front struts of a rack

Tell us some more about the technical aspects of the product?

Welded on rack attachment points

34mm-wide rack mount threaded for M5 bolts

Stainless steel pivot and bolt

Black or Silver anodized with laser-etched logo

30.0, 32.0 and 35.0mm

44 grams

Rate the product for quality of construction:
Rate the product for performance:
Rate the product for durability:
Rate the product for weight, if applicable:
Rate the product for value:

Tell us how the product performed overall when used for its designed purpose

About as well as possible

Tell us what you particularly liked about the product

Simple, effective

Tell us what you particularly disliked about the product


Did you enjoy using the product? Yes

Would you consider buying the product? Yes

Would you recommend the product to a friend? Yes

Overall rating: 9/10

About the tester

Age: 40  Height: 190cm  Weight: 102kg

I usually ride: whatever I'm testing...  My best bike is: Genesis Equilibrium with SRAM Apex

I've been riding for: 10-20 years  I ride: Every day  I would class myself as: Experienced

I regularly do the following types of riding: commuting, sportives, general fitness riding, fixed/singlespeed, mtb, Mountain Bike Bog Snorkelling, track


Dave is a founding father of, having previously worked on Cycling Plus and What Mountain Bike magazines back in the day. He also writes about e-bikes for our sister publication ebiketips. He's won three mountain bike bog snorkelling World Championships, and races at the back of the third cats.

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matthewn5 | 11 years ago

I've had the others, this one is much lighter and neater than most. That's why it's worth mentioning. Some of them are gigantic lumps of alloy, this is a neat little thing. Some people like that. It's not all about cheapest price.

ridein | 11 years ago

$6.99 at JensonUSA have a rack clamp (28.6/31.8)!4lq1DVFHZEr2xT3vYGTNHA!/XLC-Seatpost-Clamp-Wit...

alotronic | 11 years ago

To be fair on the Salsa, it is a better design than the other ones - the bolt threads into a swinging bit so as you tighten it the bolt pivots too. Not that it's a big deal, but something to note.

(I can't believe that I have something to say about a seat post bolt, things are getting bad, I need help obviously)

ragtag replied to alotronic | 11 years ago

No idea what you mean  26

Giant do this and a qr version

zedbedboy | 11 years ago

Apparantly similar items are available from loads of places for £6 - £8. Evans cycles do the MPart one.

Jerm | 11 years ago

Wiggle say the M Part version is no longer available though.

ragtag | 11 years ago

Yeah I had something similar for my rack 2 years ago, came with the rack.

PJ McNally | 11 years ago

M part make one of these for £6 -

is the Salsa really worth 4 times as much?

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