Are the valve cores removable?

No, the valve cores are not removable. These are the Presta Valves.

Where's my sticker? This is twice now I bought these tubes and when I get them guess what, no stickers.

I didn't get any stickers either....

How do u pump them up

I use a hand pump that can be used with either European or American valve stems.

Can this be used with 25mm tires or only 28?

I use these for my 25mm and 32 mm bike tires.

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'Continental Race 28'' Wide 700 x 25-32c Bicycle Inner Tubes - 42mm Presta Valve Road Bike Tube'

Product ID: 386561152

Details

Brand
Continental
Item diameter
28 Inches
Material
Butyl Rubber
Valve type
Presta
Wheel size
700

📏Fits 700x25-32c tire sizes perfectly

🛡️Durable butyl rubber resists punctures

🚴‍♂️42mm Presta valve for precise inflation

R916

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚴‍♀️ Ride sharp, stay ahead — never let a flat slow your momentum!

QUALITY ASSURED - 100% inspected for uniform roundness and performance, guaranteeing smooth handling on every ride.
PREMIUM DURABILITY - Crafted from high-grade butyl rubber with seamless vulcanized construction for long-lasting puncture resistance.
PRECISION VALVE FIT - 42mm Presta valve engineered for rims up to 30mm deep, ensuring hassle-free inflation and air retention.
READY TO RIDE CONVENIENCE - Sold in a 2-pack, so you’re always prepared with a reliable spare for your next road adventure.
VERSATILE TIRE COMPATIBILITY - Optimized for 700x25-32c tires, delivering a snug fit that enhances ride stability and reduces flats.

Continental Race 28'' Inner Tubes feature a 42mm Presta valve designed for road bike rims up to 30mm deep, fitting tire widths from 25 to 32mm. Made from durable butyl rubber with seamless vulcanized construction, these tubes offer superior puncture resistance and consistent air retention. Sold in convenient 2-packs, they are quality-inspected for uniform roundness, ensuring smooth, reliable performance on every ride.

Specifications

ASIN	B09M4BX2HR
Best Sellers Rank	#34,331 in Sporting Goods ( See Top 100 in Sporting Goods ) #193 in Bike Tubes
Bike Type	Road Bike
Brand Name	Continental
Compatible Tire Width Maximum	32 Millimeters
Compatible Tire Width Minimum	25 Millimeters
Customer Reviews	4.6 4.6 out of 5 stars (1,853)
Included Components	2x Continental Tubes, Presta Valve
Item Diameter	28 Inches
Item Type Name	bicycle tube
Item Width	28 Millimeters
Manufacturer	Continental
Manufacturer Part Number	C1501932
Material Type	Butyl Rubber
Model Number	C1501932
Number of Items	2
Size	700x25-32 Presta 42mm
Unit Count	2 Count
Valve Length	42 Millimeters
Valve Type	Presta
Wheel Size	700 Centimeters

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