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

New: Take part in the March Giveaway for HONBIKE Uni4 long-range commuter E-bike valued at $1699 ⚡

Big tube problem!
I ordered, from a bike-shop, 3 tubes for my kojak tires. Instead of the good size (20-40mm), they send me a bigger size (40-60mm). I wanna know is it safe and if it's ok to mount my kojak (26"x1.35) with this tubes.
thanks a lot!

Should be fine, but it depends on if you can get the tube into the tire without any twists or bends. Tire sizes are notoriously inaccurate, so it's hard to say firmly yes or no. Try inflating a tube just enough so it starts to take on it's 'donut' shape. Then see if you can fit it in the tire without any major kinks. If not, return the tubes. If you install a tube in a tire with a fold or bend in it, you do risk the tube pushing the tire off the rim and giving you a flat.


Possibly Related Threads...
Last Post
11-13-2012, 10:51 PM
Last Post: Bill
04-20-2009, 12:28 AM
Last Post: Aushiker

Forum Jump:

10 Latest Posts
What are your best biking places in your...
Yesterday 12:57 PM
Yesterday 12:45 PM
Where are you from and What is your favo...
Yesterday 11:50 AM
Winter Riding
Yesterday 11:47 AM
What was your first bicycle?
Yesterday 08:46 AM
Yesterday 08:06 AM
Specialised Globe Vienna 4 bling bling
Yesterday 06:31 AM
Yesterday 05:52 AM
Has anyone used tubeless tires without s...
03-22-2023 08:32 PM
Stretching during a ride
03-22-2023 12:04 PM

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. ReapThaWhirlwind
29 posts
no avatar 2. ichitan
28 posts
no avatar 3. enkei
15 posts
no avatar 4. meamoantonio
12 posts
no avatar 5. Sybian
11 posts