Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

Best Black Friday E-Bike Deals 2024 | Up to $1,700 in Savings

New: Take Part in the November Giveaway: Starts November 18th


Road bike tyre size
#1
my road bike tyre size is 700x25c so do i order 700x18-25 or 700x25-35 or will both sizes of inner tube fit?

thanks.
  Reply
#2
The 700x18-25 is pretty skinny. The 700x25-35 will be a little bigger. Can't stand these kind of tires, as in the universal thing. BUT it is what we have to deal lol. I would say the bigger but wait for other replies to your post before ordering.
Good maintenance to your Bike, can make it like the wheels are, true and smooth!
  Reply
#3
I use the 700x25-35 on my road bike. No particular reason other than that is what the bike shop recommended.
HCFR Cycling Team
Ride Safe...Ride Hard...Ride Daily
  Reply
#4
(04-09-2011, 05:18 AM)bigsur Wrote:  my road bike tyre size is 700x25c so do i order 700x18-25 or 700x25-35 or will both sizes of inner tube fit?

thanks.
Both will fit.

The bigger size will provide you with fractionally thicker rubber when inflated to fit your tires, and thus be infinitesimally more puncture resistant and heavier.

I would go with the bigger size.
Nigel
  Reply
#5
(04-09-2011, 05:18 AM)bigsur Wrote:  my road bike tyre size is 700x25c so do i order 700x18-25 or 700x25-35 or will both sizes of inner tube fit?

thanks.

Either size tube will fit. With the 18-25 there is risk of a tear at the valve. With the 25-35 there is risk of fold over flats. These risks are theoretical, not real, in my experience.

Why are you replacing the tubes? What size tube have you been running and how did they work for you? What is the condition of the tires/tyres? How's the rim tape? Spoke condition? What kind of bike and how do you use it? Road conditions? How often do you use the bike? Do you keep the tubes aired-up even when the bike goes for long periods of not being ridden?

Remember, manufacturer spec assumes ideals.

I'd go with 18-25 in competitive road and tri scenarios. 25-35 in sport/rec.

FWIW:

http://www.bicycletires.com/a_72/bicycle_tubes/article.htm
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
Recording Bike Rides
Yesterday 01:37 AM
Ketone Ester $$$
11-19-2024 01:04 AM
Trek domane tyre
11-18-2024 01:58 PM
Old fossil buys Ebike
11-17-2024 06:39 AM
Bike bus
11-17-2024 12:14 AM
Second wheelset for ebike.
11-16-2024 08:20 PM
Humber "Eiffel Safety" bike 1800s
11-16-2024 03:05 PM
Moving in Style: Beyond Regular Transpor...
11-15-2024 03:01 PM
Great UK Cycle Camping Map, For E-Bikes,...
11-10-2024 06:55 AM
Cycling is Anti-Aging, But There's a Cat...
11-10-2024 06:48 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Jesper
22 posts
no avatar 2. enkei
19 posts
no avatar 3. GirishH
14 posts
no avatar 4. Flowrider
11 posts
no avatar 5. ReapThaWhirlwind
11 posts