Yes, you can use a 23c tube in a 25c tire, but you may experience some rolling resistance because the 23c tube will be slightly smaller than the 25c tire. If you’re looking to save a few bucks, though, it’s perfectly fine to use the smaller tube. Just be aware that your bike may not feel as fast as it normally does.
- You will need a 23c tube and a 25c tire
- Remove the old tube from the tire
- Inspect the tire for any sharp objects or debris that may have caused the previous tube to fail
- Install the new tube in the tire, being careful not to pinch or damage it
- Inflate the tire to the recommended pressure
Kenda Tube 700 x 23/25C and Kenda Tyre installing
Can I use a 23mm tube in a 25mm tire?
No, you cannot use a 23mm tube in a 25mm tire. The 23mm tube will be too small and will not provide a proper seal. It is also likely that the tube will get pinched when you try to install it, which could cause a leak.
Can you put a 700×25 tube in an 700×23 wheel?
You can put a 700×25 tube in an 700×23 wheel, but it will be a tight fit. The 23c rim is designed for a narrow tire and the 25c tire is designed for a wider rim. The difference in width is only 2mm, so the tube will fit, but it will be stretched and may not be as comfortable to ride on.
Can you use a bigger tube in a smaller tire?
It is possible to use a bigger tube in a smaller tire, but it is not recommended. Doing so can put too much pressure on the tube, which can cause it to burst. It can also make the tire more difficult to inflate.
If you must use a bigger tube in a smaller tire, be sure to check the pressure often and release some air if necessary.
What happens if you use a smaller inner tube?
If you use a smaller inner tube, it will be under more pressure and could potentially burst. It is also more likely to get punctured.

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Bike tube sizes
Bike tubes come in a range of sizes to fit the wheels of different bikes. The most common sizes are 26 inch, 27.5 inch, and 29 inch. To get the right size tube for your bike, you’ll need to know the size of your bike’s wheels.
You can usually find this information on the side of your tires.
Once you know the size of your bike’s wheels, you can choose the right size tube. If you’re not sure which size to get, you can always ask a staff member at your local bike shop.
They’ll be able to help you find the right size tube for your bike.
Conclusion
It’s a common question, and one that doesn’t have a definitive answer. In general, you can use a 23c tube in a 25c tire, but there are a few things to keep in mind. First, the 23c tube will be narrower than the 25c tire, so it may not fit as snugly.
This can cause the tube to rub against the tire, which can eventually lead to a puncture. Second, the 23c tube will have less air volume, so it will be more susceptible to punctures. If you do use a 23c tube in a 25c tire, be sure to check it regularly for signs of wear.
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