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

New: Take part in the October Giveaway for the Haven Bicycle Co. beach cruiser


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
 
6,963
06-07-2015, 03:57 PM
Last Post: Painkiller
 
12,457
03-30-2015, 12:18 PM
Last Post: nfmisso
 
6,193
04-02-2014, 04:01 AM
Last Post: kevino47
 
9,411
02-04-2013, 08:59 AM
Last Post: andy2307
 
8,447
08-11-2011, 12:43 PM
Last Post: DaveM
 
12,473
06-17-2011, 11:19 AM
Last Post: nfmisso
 
9,851
04-08-2011, 02:45 AM
Last Post: JonB

Forum Jump:

[-]
10 Latest Posts
WD40 on chain?
Yesterday 01:21 PM
2021 Pro Road Cycling
Yesterday 01:18 PM
Fell in 💙 w/this bike- need info on it t...
10-23-2021 05:55 PM
What was your first bicycle?
10-21-2021 09:04 PM
V Brakes just won’t adjust properly
10-21-2021 06:54 PM
29er MTB full suspension
10-21-2021 04:26 PM
Souke Sports Cycling Apparel Discussion ...
10-20-2021 10:11 PM
VINTAGE DERAILLEURS: Campagnolo 50s-80s
10-20-2021 04:07 PM
How to replace rear shock spring
10-19-2021 10:34 PM
Want to convert my 2012 salsa Fargo 2 to...
10-19-2021 12:51 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. Souke Sports
24 posts
no avatar 2. JoJoJo
11 posts
no avatar 3. Criminal
10 posts
no avatar 4. Jesper
8 posts
no avatar 5. Nikko
5 posts