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The Lezyne Twin Kit CO2 Inflator Kit is a compact package for when punctures strike. It'll fit easily in your jersey pocket or strap to your bike's seatpost, and each of its components works well.
Lezyne's Inflator Kit consists of two CO2 canisters (16g or 25g, the latter adding about 100g weight), the Twin Speed inflator head, a patch kit and two tyre levers. These are all kept together by a Velcro strap, which also allows you to attach the kit to your bike's seatpost. The 16g canister is ideal for road tyres, with the 25g canister designed for larger volume gravel and mountain bike tyres.
The inflator head is a small aluminium unit that screws onto the threaded CO2 canisters for a secure fit when inflating your tyre. To inflate you push the canister onto the inner tube's valve – it's as simple as that. The head is compatible with both Presta and Schrader valves.
The patch kit comes in an anodised aluminium case, which contains glueless patches and a small metal grater for roughing up the inner tube or tyre around the puncture.
I've owned plenty of these Lezyne kits over the years and I've found the patches not only stick well but they remain in place for ages. And they don't lose their adhesiveness when stored for long amounts of time either.
The side panels of the aluminium case are removable tyre levers. These work well enough on most tyres unless tolerances make the tyres a tight fit, or if you're running tubeless and the tyres have bonded well with the rim. In these circumstances I found the levers a little short to get sufficient leverage, and I'd recommend carrying longer levers just in case.
The £28 kit price isn't bad when compared to something like Vel's CO2 Flow Regulator Head Kit, which costs £20 for two canisters and the inflator head.
Vel's inflator is a little more involved than the Lezyne's, as it lets you control the flow of CO2 – but the Lezyne's extra eight quid does get you the patch kit and tyre levers.
Birzman's Inflator Set is available for around the same price as the Lezyne, and comes with three 25g CO2 cannisters, head unit and a neoprene sleeve.
Lezyne's Twin Speed CO2 Inflator Kit keeps everything you need for repairing a puncture neatly in one place, which makes it ideal for saddle pack, bag or jersey pocket. The ability to attach it to your bike's seatpost means that it's also suitable for fast roadies or time triallists who may be wearing pocketless aero kit. The individual components work well – provided you don't need longer levers – and the kit is well priced too.
A well-made and comprehensive puncture kit with CO2 canisters and highly effective patches
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road.cc test report
Make and model: Lezyne Twin Kit CO2
Size tested: One Size
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?
Lezyne says: "The Lezyne CO2 Repair Kit is a compact, all-in-one CO2 and tyre repair kit."
It comes with everything you need to repair small punctures, especially when using inner tubes.
Tell us some more about the technical aspects of the product?
1x Twin Speed Drive CO2 Inflator.
2x 16g OR 25g CO2 Cartridges.
1x Lever Kit.
Tell us how the product performed overall when used for its designed purpose
Simple to carry and efficient to use.
Tell us what you particularly liked about the product
The patches work very well.
Tell us what you particularly disliked about the product
Tyre levers aren't long enough or strong enough for tight-fitting tyres.
How does the price compare to that of similar products in the market, including ones recently tested on road.cc?
There are few direct comparisons on the market, but when looking at the price of inflation kits without patches the Lezyne looks to be decent value.
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
Considering the amount of stuff you are getting, the Lezyne kit is decent value and all of the bits work effectively – though the tyre levers will struggle with stubborn or tight-fitting tyres.
About the tester
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,
As part of the Tech Hub here at F-At Digital, our senior product reviewer Stu uses the knowledge gained from putting well over a 1,000 products through their paces (including hundreds of bikes) to write in-depth reviews of a huge range of kit. After first throwing his leg over a race bike back in 2000, Stu's ridden more than 160,000 miles on road, time-trial, track, and gravel bikes, and while he's put his racing days behind him he still likes to smash the pedals rather than take things easy. Although, as he spends a fair bit of his time reviewing ebikes these days he's becoming an expert in letting the motor take the strain. He's also waiting for 23mm race tyres to make a comeback!