I am trying to buy continental bike tube - 700 x 25, but the size change to 700 x 32-42 pv on the cart. why?

I found the same problem and had to buy it from a different source in order to be sure I was getting the correct size. It’s an amazon problem.

Is this 650cc or 700cc? The name says 650 but the picture shows 700

It is 650cc. Bought to install on my older SCOTT road bike.

Will it fit a 25x700c tire?

Yes. I just put these in my 25x700 and they fit.

will this work on a trek fx3? I'm confused about the length of the valve for this bike? 42mm OK or longer?

This has nothing to do with the bike but rather with the wheel or more specifically with depth of the wheel. If you wheel is X mm deep you will need at least X +15 mm long valve. Example: you wheel rim is 25mm deep. You will want tube with at least 40mm valve. Longer is OK but at some point it will impair the aesthetics.

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Continental 42mm Presta Valve Tube

Product ID: 1608673

Details

Brand
Continental
Item Diameter
70 Centimeters
Material
Butyl Rubber
Valve Type
Presta
Wheel Size
28 Inches

🔧Removable valve core for easy maintenance

🛡️Vulcanized seamless tube for durability

🚴‍♂️42mm Presta valve for precision inflation

NT$632

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Description

🚴‍♂️ Ride Like a Pro, Leak Like Never Before!

TESTED TO PERFECTION - 100% quality control inspection guarantees a tube you can trust on every ride.
MAINTENANCE MADE SIMPLE - Removable valve core allows quick sealant refills and valve extenders for extended rides.
PRECISION VALVE CONTROL - 42mm Presta valve offers reliable, leak-free inflation tailored for performance riders.
CHAMPION GRADE DURABILITY - Vulcanized seamless design ensures uniform roundness and superior strength under pressure.
UNIVERSAL FIT FLEXIBILITY - Unitube system compatible with a wide range of tire sizes from 18mm to 25mm width.

The Continental 42mm Presta Valve Tube is a premium, vulcanized inner tube designed for mountain and road bikes with tire widths between 18-25mm. Featuring a seamless mold-cured construction for enhanced durability, a removable valve core for easy maintenance, and a 42mm Presta valve for precise inflation, this tube is quality-tested to meet the demands of serious cyclists. Backed by a 2-year limited warranty, it’s the trusted choice for riders who refuse to compromise on performance.

Specifications

ASIN	B0068FAXTY
Best Sellers Rank	#35,492 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #144 in Bike Tires #226 in Bike Tubes
Bike Type	Mountain Bike
Brand	Continental
Brand Name	Continental
Compatible Tire Width Maximum	25 centimeters
Compatible Tire Width Minimum	20 centimeters
Customer Reviews	4.3 out of 5 stars 2,589 Reviews
Global Trade Identification Number	04019238556780
Included Components	1x Continental Tube, Presta Valve
Item Diameter	70 centimeters
Item Highlight	Fits 700x20 to 700x25 Tires \| Removable Valve Core \| For Road Racing and Training \| Seamless, Mold-Cured
Item Type Name	Bike Parts
Item Weight	3.52 ounces
Item Width	20 millimeters
Manufacturer	Continental
Manufacturer Part Number	C1501726
Material	Butyl Rubber
Material Type	Butyl Rubber
Model Number	C1501726
Number of Items	1
Size	700 x 20-25mm
Unit Count	1 Count
Valve Length	42 millimeters
Valve Type	Presta
Warranty Description	Continental Tire the Americas, LLC (“Continental“) provides a Limited Warranty to the original (consumer) purchaser that covers all Continental bicycle tires, purchased within the United States and Canada, against manufacturer defects in material and workmanship for up to two years from date of purchase, five years from date of manufacture, or until there is no serviceable original tread depth (as…
Wheel Size	28 inches

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NT$632

Duties & taxes included

In stock

Sold byAmazon TaiwanDelivered 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 Taiwan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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