Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Road Cycling It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle. -- Ernest Hemingway

User Tag List

Reply
 
Thread Tools Search this Thread
Old 03-08-04, 12:07 AM   #1
DaveTrek1000
Junior Member
Thread Starter
 
Join Date: Mar 2004
Location: South burbs of Illinois
Bikes: Trek 4500mtb Trek 1000 rd
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
How do i test tire pressure?

I bought my first road bike and noticed the tire vavles are different then that of the mountain bikes I am use to. The guys at the store I bought it from gave me an adaptor to fill the tire with, but the pressure gauge i have will not fit on this adaptor. I am wondering do if need a special gauge for this adaptor or am I just putting my gauge on wrong? Thank you ahead of time for your answers and the sooner the better. I am afriad to ride now until I figure this out. Don't wanna ruin the tires.
Thanks
Dave
DaveTrek1000 is offline   Reply With Quote
Old 03-08-04, 12:22 AM   #2
pl8er
Member
 
Join Date: Feb 2004
Location: Columbus, Ohio
Bikes: Trek 1000
Posts: 37
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Alright!!

Well, I'm totally a newbie here too, but I'm very excited because I can kinda help you with this! The valves you have on your bike(same bike I just bought 3 days ago) are most likely presta valves. I went to Wal-mart and found a few pumps that have presta valve adapters with gauges. The problem is that my tires take 80 psi minimum and those pumps only go to 70 psi. I would check at a bike shop or a sporting goods store. I would bet that they have pumps with gauges built in.


Hopefully I helped If not...I've only wasted about 20 seconds of your life
pl8er is offline   Reply With Quote
Old 03-08-04, 12:29 AM   #3
SSP
Software for Cyclists
 
SSP's Avatar
 
Join Date: Dec 2003
Location: Redding, California
Bikes: Trek 5200, Specialized MTB
Posts: 4,618
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by DaveTrek1000
I bought my first road bike and noticed the tire vavles are different then that of the mountain bikes I am use to. The guys at the store I bought it from gave me an adaptor to fill the tire with, but the pressure gauge i have will not fit on this adaptor. I am wondering do if need a special gauge for this adaptor or am I just putting my gauge on wrong? Thank you ahead of time for your answers and the sooner the better. I am afriad to ride now until I figure this out. Don't wanna ruin the tires.
Thanks
Dave
Welcome to the wonderful world of road biking. As previously mentioned, it's best to get a good floor pump with a built in gauge (I have a Joe Blow that works well). Your local bike shop will carry these, or you can order through one of the bike catalogs. Here's a link to the pumps in the Performance Bike catalog.

In general, road bike tires should be hard when pumped up (typically, 100+ psi). When purchasing a pump, you might also want to pick up a CO2 powered inflator to carry on your bike, along with a spare tube and tire tools, for the inevitable flat.
SSP is offline   Reply With Quote
Old 03-08-04, 06:39 AM   #4
DnvrFox
Banned.
 
DnvrFox's Avatar
 
Join Date: Aug 2001
Bikes:
Posts: 20,916
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I would think that "testing" a road bike with a pressure gauge after pumping would defeat your purpose, as it only takes a little air loss on a road bike to lower the pressure significantly, and I have never found an air gauge that didn't lose some air when you tested tire pressure.

Not so bad for a mtn bike tire as the have more "reserve," so to speak, and losing a little air is not going to drop the pressure much.

Check out www.Nashbar.com and www.PerformanceBike.com for sales on good quality floor pumps. The Joe Blow Sport comes to mind, with a dual presta/Schrader valve head.

Nashbar has a Joe Blow on sale right now for 24.95

http://www.nashbar.com/results.cfm?s...ice1&pagename=

On a road bike, tire pressure is extremely important. I pump mine before every ride to be sure I am at 120 psi.

Last edited by DnvrFox; 03-08-04 at 06:52 AM.
DnvrFox is offline   Reply With Quote
Old 03-08-04, 08:46 AM   #5
Ebbtide
Senior Member
 
Ebbtide's Avatar
 
Join Date: May 2003
Location: Ohio's Cycling Capital, America's North Coast.
Bikes:
Posts: 4,617
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Exercise the valve manually to break the seal before you put the adapter on (unscrew the thingy, depress quickly). Make sure you adapter is attached properly (thick end with knurls toward tire). Make sure you standard gauge goes up to the desired pressure.

Make sure to put the gauge on straight and be quick about it or you will let air escape as DnvrFox said.
Ebbtide is offline   Reply With Quote
Old 03-08-04, 11:57 AM   #6
pl8er
Member
 
Join Date: Feb 2004
Location: Columbus, Ohio
Bikes: Trek 1000
Posts: 37
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
thanks!

Thanks for the link DnvrFox I went looking for a high quality pump today and couldn't find anything. All the stores seem to have are 70 psi max pumps for like 40 bucks!!! *sigh* only one sports store here in columbus and all the department stores have about the same amount of bike stuff Anyways, I picked up the pump you recommended.
pl8er is offline   Reply With Quote
Old 03-09-04, 10:51 AM   #7
wlevey
Senior Member
 
wlevey's Avatar
 
Join Date: Oct 2002
Location: Reisterstown, Maryland, USA
Bikes: Bike 1 - Bianchi 928, Easton carbon stem, bar & seat post, Ultegra 11/23 cassette. Bike 2 - 03 Lemond Buenos Aries. FSA compact crank, Sella Italia FSK sadle and Ultegra 12/27 cassette
Posts: 324
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I got the Topeak Road Morph! Small pump that can be clamped to the under side of either your top tube or main tube. The neat thing about it is that it has a flexable hose with a built in gauge and the pumb actually "morphs" onto a very mini floor pump!! Way cool! I like it because it really reduces the risk of smapping off a valve when inflating. That is a REAL BUMMER 30 miles from home on a cold day!! I also use the Inovations CO2 inflater as an emergency backup!! It is over kill in some people's oppinion, but that way I can use the CO2 to inflate most of the way and top off with the pump. Then I have energy to ride home!! Also, as someone else on the forum has said, "A pump doesn't run out of air."

Good luck...Bill
wlevey is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 05:03 PM.