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


New tyre ??
#1
When I change the tube on my bike (it's s Dawes Super Galaxy). When. I pump up the tube it pushes the tyre out of the rim. Happened 4-5 times yesterday. Lost a brand new tube.

Does this mean the tyre is knackered?

Thanks in advance.
  Reply
#2
Could be the tire, could be the rim. Does the bulging occur in the same spot all the time? Check the bead on the tire and check the rim to make sure there are not any damaged spots where the tire seats to the rim.
  Reply
#3
If there was not a problem with a blowout previous to removing the tire and tube the problem is most likely due to poor installation technique. You need to make sure that none of the tube is sitting underneath the tire bead after you install the tire, especially near the valve, which is reinforced. Push the valve up into the tire and then pull it back out again to prevent that occurrence at the valve.
  Reply
#4
It was the tyre, got a new one today. Tried again with the old one and it pushed out 2-3 times in different places on rim.

New one, no problems whatsoever. With two tyres to compare, the old one had stretched somewhat.
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
2,910
11-18-2024, 01:58 PM
Last Post: ReapThaWhirlwind
 
3,775
03-24-2024, 05:48 PM
Last Post: Frankly
 
11,988
06-07-2015, 03:57 PM
Last Post: Painkiller
 
18,135
03-30-2015, 12:18 PM
Last Post: nfmisso
 
10,777
04-02-2014, 04:01 AM
Last Post: kevino47
 
15,291
02-04-2013, 08:59 AM
Last Post: andy2307
 
12,785
08-11-2011, 12:43 PM
Last Post: DaveM
 
18,016
06-17-2011, 11:19 AM
Last Post: nfmisso

Forum Jump:

[-]
10 Latest Posts
Pros & Cons of presta valve vs schrader ...
Today 11:58 AM
Raleigh Sports Serial Number
Yesterday 11:10 AM
Safest bike helmets
Yesterday 10:16 AM
The great thing about trikes
Yesterday 10:12 AM
Tour de FRANCE 2025
Yesterday 09:10 AM
Full Moon Ride - Sunshine Coast
07-08-2025 10:46 PM
Continued learnings from bikepacking
07-08-2025 10:40 PM
What are the pros and cons of using a 26...
07-08-2025 10:35 PM
Cutting Drag Watts
07-08-2025 03:54 PM
How often check or change mechanical dis...
07-08-2025 03:24 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. Flowrider
22 posts
no avatar 2. GirishH
22 posts
no avatar 3. meamoantonio
17 posts
no avatar 4. enkei
15 posts
no avatar 5. Jesper
14 posts