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Bontrager BackRack Lightweight



Ideal rack for commuters or weekend escapees, especially if your bike doesn't have proper 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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Bontrager's BackRack Lightweight will fit pretty much any bike, and with its ease of fitment once set up is ideal for daily use or just bunging on for the odd excursion. For such a lightweight design it's surprisingly sturdy too.

  • Pros: Solid once fitted, easily converts a race bike into a load carrier
  • Cons: Can be quite a bit of cutting and fettling to achieve the first fit.

Initial fitting of the BackRack can be a bit of a faff. That's not totally the rack's fault, as the bikes I tried it on ranged in seatstay heights and angles, different brakes and everything else.

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The bars used for attaching the top half of the frame to the bike are quite long to accommodate large frame sizes, but this means they can catch on the cross-section bars. It takes a bit of faith to start cutting things with a hacksaw before you are at that final fit stage.


With a bit of 'measure twice and cut once', though, you can make this rack fit pretty much any bike provided it uses quick releases and has a brake bridge, if it doesn't have specific mounts at the dropout or seatstays for fitting a rack. Oh, it can't have carbon dropouts, though.

First off, if your bike doesn't have rack mounts at the dropout then you need to use the stainless steel adaptors, through which you thread the quick release.


In the box of spares provided by Bontrager you'll find an extended quick release skewer just in case your original one is too short to cope with the extra width. The adaptors will add about 6mm overall.

To attach the top of the rack to the frame, Bontrager provides two bars, one for each seatstay if you have mounting points. If not, you just use one and attach it to the bracket that fits to the brake bridge. (Each bar is fixed to the rack with a grub screw; undo completely to remove one bar and loosen the other to slide the second bar to the centre, then tighten.)


The bracket is a neat little solution and it's certainly sturdy enough to take the maximum weight load of the rack at 22.7kg (50lb). It's knurled front and back to replace the star washer you find behind the brake calliper, and it has a thin rubber coating to stop paint rub should it touch the frame.


With everything fitted, you don't really notice the added weight when the rack is empty – after all, it's only 406g thanks to its hollow alloy tubing. Considering the weight, or lack of it, I was very impressed with how sturdy everything felt. It's rock solid.

With a usable length of about 35cm and 10cm at its widest, there are plenty of bags available on the market that you can attach, although I mostly just used a couple of bungy straps for carrying various things, and with plenty of attachment points had no issues.

> Buyer's guide to racks and panniers

Loaded up with a bag carrying plenty of tools and spares for a day ride, or popping to the shops for a few essentials, there was little issue with the weight I was carrying. Even riding off to a barbecue with a crate of beer and a couple of bottles of wine on board I didn't feel any sway or movement from the rack.

The only real downside with a rack of this style, if you are using the quick release, is that if you have a puncture you have to fully remove the skewer to drop the wheel out.


My bike is running tubeless at the moment, and punctures are few and far between, but even so I'd consider this a minor inconvenience rather than a real issue.

Value-wise, the Bontrager looks to be reasonably priced at £49.99. It's the same as the Blackburn Central Rear Rack that we reviewed a little while back, which scored very highly. It looks to have a slightly easier fitting system than the Bontrager, but despite being lighter, the latter does have an extra couple of kilos of weight-carrying capacity.

> Beginner's Guide: How to carry stuff on your bike

The quality is certainly up there with a smart, hardwearing finish and the welding looks neat enough. You get fixings for a rear light or reflector, and the legs kick out at the bottom in case you need clearance for a disc brake.


Ideal rack for commuters or weekend escapees, especially if your bike doesn't have proper mounts

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Make and model: Bontrager BackRack Lightweight

Size tested: 46-62cm

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?

Bontrager says, "Turn any bike, including most road bikes (with the included adapters), into a touring or commuting beast. The alloy, bag-compatible BackRack Lightweight rack is our lightest without sacrificing strength or utility."

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

From Bontrager:

Lightweight, only 465g (16oz)

Includes adapter kit for mounting to most road bikes

One size fits most

Compatible with Interchange trunk bags

Long-lasting, corrosion-resistant, stainless steel hardware

Do not use with carbon dropouts

Frames must have brake bridge or seat stay eyelets

Max load is 22.7Kg (50 lbs.)

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

Gives you a very good solution to carry a load on pretty much any bike.

Tell us what you particularly liked about the product

Very sturdy for something so light.

Tell us what you particularly disliked about the product

Fiddly setup on some frames.

How does the price compare to that of similar products in the market, including ones recently tested on

The Blackburn Central Rear Rack is the same, £49.99, while at the other extreme the Tailfin T1 on its own is £249.99...

Did you enjoy using the product? Yes

Would you consider buying the product? Yes

Would you recommend the product to a friend? Yes

Use this box to explain your overall score

The original setup can be a little fiddly because of frame angles and brake positioning, but once fettled the BackRack is very secure in use, easy to fit or remove in a couple of minutes, and good value.

Overall rating: 8/10

About the tester

Age: 40  Height: 180cm  Weight: 76kg

I usually ride: This month's test bike  My best bike is: B'Twin Ultra CF draped in the latest bling test components

I've been riding for: Over 20 years  I ride: Every day  I would class myself as: Expert

I regularly do the following types of riding: time trialling, commuting, club rides, sportives, fixed/singlespeed

With 20 years of road cycling and over 150,000 miles in his legs it's safe to say Stu is happiest when on the bike whatever the weather. Since writing his first review for back in 2009 he has also had a career in engineering including 3D-CAD design and product development, so has a real passion for all of the latest technology coming through in the industry but is also a sucker for a classic steel frame, skinny tyres, rim brakes and a damn good paintjob.
His fascination with gravel bikes is getting out of control too!

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