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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CO2 Inflators

Product ID: 184190899

Details

Brand
COTOUXKER
Color
Red Silver
Item Weight
27.22 g
Material
Aluminum
Power Source
Handheld

⏱️Precision control lever for regulated CO2 release

⚙️CNC machined aluminum & brass internals

🚴‍♂️Compatible with Presta & Schrader valves

CI$23

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Description

🚴‍♀️ Inflate Fast, Ride Faster – Never Get Left Behind!

COMPACT POWERHOUSE - Ultra-lightweight and pocket-friendly design that fits seamlessly into your cycling kit.
LEAK FREE CONFIDENCE - Engineered CNC aluminum parts ensure a secure, no-leak connection every time.
RACE READY RELIABILITY - Trusted by pros for fast, efficient inflation during races, group rides, or timed events.
RAPID INFLATION MASTERY - Inflate your tire in seconds with precision control—never miss a beat on your ride.
UNIVERSAL VALVE COMPATIBILITY - Works flawlessly with both Presta and Schrader valves—one inflator for all your bikes.

The CO2 Bike Tire Inflator by COTOUXKER is a precision-engineered, CNC machined aluminum inflator compatible with both Presta and Schrader valves. Lightweight at just 27g, it features a control lever for regulated CO2 release to prevent freezing and ensure fast, leak-free inflation. Ideal for road and mountain bikes, it’s the perfect race-day essential for quick tire inflation on the go.

Specifications

ASIN	B0821L3GPY
Best Sellers Rank	#23,961 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #9 in Bike CO2 Pump Systems
Brand Name	COTOUXKER
Color	Red, Silver
Customer Reviews	4.3 4.3 out of 5 stars (924)
Item Weight	27.22 g
Manufacturer	Homelae
Manufacturer Part Number	HL066
Material Type	Aluminum
Model Number	HL066
Number of Items	1
Operation Mode	Manual
Power Source	Handheld
UPC	779207160878

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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CI$23

Duties & taxes included

In stock

Sold byAmazon Cayman IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cayman Islands.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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

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Good experience, but the tracking updates could be better.

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