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


Presta valve broken
#1
While removing the pump head after pumping, the presta valve got broken. I then reinserted the pump to check whether it can sill be pumped, and all of a sudden the remaining needle is lost ( might have gone inside the tube). Is there any way to fix it without changing the whole tube?

And if I need to change the tube, then what would be the tube size? My bike is Giant OCR3 2009 model.

[Image: 20140413_153009.jpg]
  Reply
#2
You need a new tube.

What is the tire size? Look on the tire for some numbers like: 37-622 or 40-559 or 700c x 28 or 26 x 1.75 From that information, you can determine which tubes will work.

When removing the valve chuck, ALWAYS hold on to the valve stem with your other hand.
Nigel
  Reply
#3
Looks like a 25mm 700c (25 x 622)
  Reply
#4
Thanks guys. It is 700c x 25. My local store only sell 700c x 19/23. Would this tube cause any problem?
  Reply
#5
700 x 23 tube will be fine.
Generally no problem to use a tube that's slightly narrow (the second number is the width)
  Reply
#6
Or slightly larger; ± 20% is okay; butyl rubber stretches a great deal. My front tire on my WT is a 28-630; and the tube inside is intended for 35 to 45 - 622.
Nigel
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
Moving in Style: Beyond Regular Transpor...
Today 09:23 PM
Tire Sizing (Or How to Buy A Tire)
Today 12:36 PM
The Roaming Radrunner Vlog 1 Why ride ...
Today 09:17 AM
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

[-]
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. ReapThaWhirlwind
11 posts
no avatar 5. Flowrider
11 posts