Does it come with insulator sleeve?

Mine came with one 4 years ago, but I never use it. If you let the CO2 out slowly, it doesn't get cold. And if you ride tubeless tires, you should let it out slowly.

A 16g CO2 cartridge is mentioned. Will it take a 20g or 25g threaded? 16g is meek for my 700x35s.

It should fit any threaded cartridge

Could someone please explain how the spare o-ring is a replacement for the original? It is much smaller than the one installed.

That's for a different size valve.

what is the small loose gasket in the package for?

it is a backup. the CO2 bike tire inflator already has one inside , you can change it with this backup one .

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🚴‍♀️ Pump up your ride, not your wait time!

RACE READY RELIABILITY - Trusted for group rides and timed events, delivering fast, controlled inflation when it counts.
RAPID INFLATION MASTERY - Inflate your tires in seconds with precision control—never miss a beat on your ride.
ENGINEERED FOR DURABILITY - CNC machined aluminum and brass internals ensure leak-free, long-lasting performance.
COMPACT LIGHTWEIGHT POWER - Pocket-sized and featherlight at 0.06 lbs—carry pro-level inflation anywhere.
UNIVERSAL VALVE COMPATIBILITY - Seamlessly fits both Presta and Schrader valves for all your road and mountain bikes.

The COTOUXKER CO2 Bike Tire Inflator is a precision-engineered, CNC machined aluminum pump with brass internals, designed for rapid, controlled inflation of both Presta and Schrader valves. Compact and lightweight at just 0.06 pounds, it features a speed control lever to prevent freezing and ensure leak-free operation, making it an essential tool for road and mountain cyclists seeking fast, reliable tire inflation on the go.

Reviews

A**R

Exceeded expectation

quick delivery; high quality. Extra effort by vendor to supply extra o ring and a sleeve for the CO2 cartridge all packaged in attractive container. Exceeded expectation. Works great. Very pleased. Recommended

4.09.2025

P**O

Nice find

Haven't need to use it yet. Durability appears to be good, and looks really easy to use. Looks like a nice find.

27.08.2025

V**C

Very nice

The main reason I didnt give a full 5 star is from 2 minor details.1. The foam cover for the cylinder is very hard to remove. I felt like I was going to damage it when removing from empty cylinder.2. The little carry tin could be even 1 mm bigger in length and thickness. From factory it's sealed with tape to hold closed. After opening and using it. Its very hard to reuse the tin as the permanent carry tin for the tool.Otherwise. It would gotten 5 star

1.07.2025

J**Y

great product

works exactly as advertised!

13.08.2025

C**M

Works great

7.09.2025

L**Y

It’s cheap, broke on 2nd use, got what I paid for.

The lever to turn the valve broke 2nd time I used it and almost left me stranded when my road bike tire flatted out. Only thing that saved me after a 30 mile ride I pinch flatted 3/4th of a mile from home and walked back. Yes it’s cheap, I got what I paid for in quality.

29.08.2025

A**R

Saved for emergency

For e-bike tire inflation. With safety freeze protection while handling. Thoughtful!

27.08.2025

C**L

Quality valve

Good price good product

9.08.2025

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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Color	Red, Silver
Brand	COTOUXKER
Material	Aluminum
Item Weight	24.99 g
Power Source	Handheld
Operation Mode	Manual
Manufacturer	Homelae
UPC	779207160878
Item Package Dimensions L x W x H	3.5 x 2.48 x 0.75 inches
Package Weight	0.06 Kilograms
Brand Name	COTOUXKER
Part Number	HL066

CO2 Bike Tire Inflator, Quick & Easy Presta and Schrader Valve Compatible Bicycle Pump for Road and Mountain Bikes Include Sleeve and No CO2 Cartridges

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