Fill up those tires!! [Archive] - Women's Cycling Discussion Forums

Toni

08-14-2006, 05:54 PM

Kano

08-14-2006, 07:05 PM

I've been working on convincing DH that this one of my "silly getting ready routines" is truly important. He's been known to call me on his way out of work to tell me to start checking my air....

Karen in Boise

Lise

08-14-2006, 07:12 PM

I do it every day. If I ride, come home, and then go out again, I don't check the pressure, but if the bike's sat overnight, I do. I *always* need to add air. I finally got a great floor pump with a gauge (the famous "pink pump")--it's so easy! For years I was going to the gas station maybe once a week. My other bike does have fatter tires, so probably doesn't lose pressure as quickly, but I'm sure I was riding around underinflated quite often.

KSH

08-14-2006, 07:52 PM

I always have to air my tires before a ride.

It's standard practice.

madisongrrl

08-14-2006, 08:04 PM

Who da thunk?? The nice guy that sold me my bike stressed the importance of checking the tire pressure daily. I was, like, sure. Yesterday was our first ride and sure enough when we got ready to ride tonight I felt the tire. Felt pretty darn rock hard. The tires call for 120 psi (check the tires to know what pressure you need); my tires were at 90 psi. What the?? :confused: Anyway, I just wanted to share with any other new riders to make sure you air up daily. We have the handy dandy standing pump with the pressure guage built in. Easy to use. Have fun!! :)

Absolutely check your tire pressure before every ride. You might not want to run your tire pressure at 120 depending on your bike frame material, tire selection, road conditions, your weight etc. I'll usually run the tire pressure on my road bike at 100-110... Because the ride is less harsh than at 120 psi. But it is also important not to run the tire pressure too low as you might pinch flat.

Bruno28

08-14-2006, 11:20 PM

Learned from experience:

I decided to check that I could pump up my tires on my brand new bike as the tire valves looked a bit odd (Presta valves as it turns out - they didn't have them in my day). ANyway I finally managed to figure out how they worked after extensive 'googling'.

Managed to let a some air out my tires while fiddling about with the valves. Took half an hour and another frantic search on the web to find out how to attach my trusty hand pump to them. Started pumping and got to the stage where I could barely budge the pump any more and the tires still had a slightly jelly like consistency. Have ordered a foot pump. New cyclists - be warned!

run it, ride it

08-15-2006, 04:39 AM

Bruno, if you don't mind sharing...

How DO you inflate/deflate via presta valves? Do you need a special pump attachment?

A month and counting, I've NEVER checked my tire pressure and I probably should. I have an air compressor in my vehicle with a built-in guage but I'm afraid it will fill the little road tire much too quickly. That is assuming I could somehow attach that to the valve in the first place.

What's the deal with presta, anyway? Did someone specifically set out to manufacture a valve to confuse newbies?

It astounds me that my nearest bike shop (90km away; not especially 'local') failed to mention so many things to me about my new bike. For example, what tool was needed to adjust the seat (allen key... who would have guessed?), or what the deal was with the valves. None of this is in the owner's manual, and I definitely told them that my last bike was a clunker from the 70s so I knew approximately nothing.

Thanks for the tire pressure memo, Tori!

Kalidurga

08-15-2006, 04:54 AM

Ugh, I learned the hard way that you need to check tire pressure before every ride. I had never had a bike with Presta valves before this year and had no clue about how they work. After about a month with the new bike, I had two rides in a row on which I thought my legs were just made of lead. One ride was just two miles up to the store and back, and I seriously wondered what was wrong with me! Then I got the weekly RoadBikeRider e-newsletter, which serendipitously enough had an article about using Presta valves. Eureka! It wasn't my legs at all, it was that I hadn't pumped up the tires properly! Made all the difference in the world (and I'm probably lucky I didn't end up with a pinch flat). Now, if I were just smart enough to apply what I learned about low pressure and rolling resistance on my bike to my car tires, I'd be in really good shape...

Bruno, those Presta valves are a bit temperamental. I have a floor pump and I still end up having to remove and attach the valve head a few times to get it lined up properly. If it's not aligned you'll get that feeling that the pump won't budge, but it's definitely not because the tire's full.

run it, it seems that most pumps these days have valve heads for both Schrader and Presta valves. If yours doesn't, you can probably get a Presta attachment from the LBS. After removing the valve cap, there's a little bit of metal near the tip of the valve that unscrews. You should turn it to the point that it's at the tip of the valve stem. Then, gently push the tip of the stem in and listen for a release of air. Your valve stem is then primed and ready. Sheldon Brown, bless him, has pictures of this: Presta Valve Stem (http://www.sheldonbrown.com/gloss_p.html#presta).

Bruno28

08-15-2006, 05:28 AM

How DO you inflate/deflate via presta valves? Do you need a special pump attachment?

Gee - this is the first time I've given advice on these forums!

Well, you undo the little brass nut at the top of the valve (it will be screwed part way down). You think you are going to let the air out of the tyre - but you won't. if you press the little brass pin like thing sticking out of the valve this will let out a little air and show the valve is working.

Most pumps have a presta valve setting which is basically a rubber washer with the smallest dimension hole of all the variations avaiable on the pump adaptors. You then put the pump on the valve to the bit where theres a smooth, unthreaded ridge. Then you pump til you feel like you are about to explode and wonder if you should swallow your pride and ask your male neighbour for help.

ONe tip - when attaching the pump to the valve, the lever on the pump acts the opposite way to a car pump - you attach it with the lever down and flick it up to lock it on the valve. I spent ages trying to attach the pump when it was locked shut at the opening to let the air into the tyres.

I'm sorry if this has confused you even more but I'm not very technical.

Just noticed kalidurga has explained this more succinctly - but you can have the benefit of my experience anyway!

BTW I'm glad it's not just me - I thought these Presta things had arrived in the thirty years since I last cycled but seems they are a relatively recent thing.

PS my bike shop never thought to mention the presta thing to me either.

BleeckerSt_Girl

08-15-2006, 06:14 AM

It's really good to have a floor pump with a pressure gauge dial and a little "wing" stand that you put your feet/foot on to steady- keep that pump in your garage or wherever you keep your bike. That's the pump you'll mostly use to pump up before you ride. It shouldn't be that difficult to pump the pressure up on it.

The smaller portable pump is the one you take with you for flats- that's the one that it can be a bit harder to get the pressure up by pumping with your hand. It may not have a gauge. It can be compact, might telescope, or you can attach it to under your top tube, or along your frame parallel to your water bottle cage.

caligurl

08-15-2006, 06:49 AM

i don't run my tires at 120 either.... i run them at 100.... cushier ride!

Bikingmomof3

08-15-2006, 07:30 AM

I check my tires every day, before I ride. My tires always need some air. I have presta valves, but I am uncertain of the question as I have not encountered any difficulty with the valves-granted I have only know presta valves, so I am missing information.

bcipam

08-15-2006, 07:35 AM

Something I learned long ago... before every ride, I check my tires. The hand pressure test is just not accurate espceially if you run your tires at 100 psi like I do. Properly inflated tires will prevent pinch flats and other problems plus the bike will roll better. I have a floor pump I keep inthe garage and another is kept in the car so no excuses! Also... and yes I learned this the hard way... always remember to tighten up the stem valve after filling your tires.

Running Mommy

08-15-2006, 07:40 AM

yep! Like everyone else.. The one time I said to myself "ehh.. my tires feel ok" is the time I got my first pinch flat! Never again!

eclectic

08-15-2006, 07:52 AM

My LBS guy told me to keep them inflated not only to prevent pinch flats but also to save the rims.

I inflate to 120 on a normal basis, 110 on a hot day and 100 on a wet day.

I too check my tires every time as part of my preride ritual

BleeckerSt_Girl

08-15-2006, 09:17 AM

caligurl

08-15-2006, 09:22 AM

We must remember that not all tires should be inflated to the same pressure.
My tires, for example, are 700c x 37cm, and have recommended pressure range of between 60 and 90 psi. So people shouldn't really recommend specific pressures assuming that all tires need similar pressure. If I inflated mine to 120 for instance, they'd probably blow! And I can run on mine at 70psi and not get pinch flats as would happen with maybe thinner 700 road tires like 25's.

good point... i ASSUMED road tires... since that what i ride 99% of the time! so my 120 psi recommended tires (700X23) i run at 100 for a nicer ride! (and for my size, too.... no need for me to have 120 psi in my tires!)

my mtb tires.... hmmmmm.... my bad.... i have NO IDEA what is in them.... i ride it so rarely... and i have hubby take care of the air! but they are at less than recommended psi, too!

Trekhawk

08-15-2006, 09:46 AM

good point... i ASSUMED road tires... since that what i ride 99% of the time! so my 120 psi recommended tires (700X23) i run at 100 for a nicer ride! (and for my size, too.... no need for me to have 120 psi in my tires!)

my mtb tires.... hmmmmm.... my bad.... i have NO IDEA what is in them.... i ride it so rarely... and i have hubby take care of the air! but they are at less than recommended psi, too!

LOL - dont do what I did and assume mtb tyres need to be super pumped like your road ones. I couldnt work out why my front wheel kept coming off the ground on hills when moutain biking (just assumed it was bad form on my part). I went riding with SK and she had a feel of my tyres and said hey they have way too much air in them. Dropped it down a tad and what do you know that front wheel didnt come up as soon as I hit a tree root on a climb. YIPEE

So what did I learn from this - different types of mountain biking require different air pressure in those tyres.

bcipam

08-15-2006, 10:24 AM

My road tires are 700 X 25 and I pump them up to 100 (max is 120). The wider the tire the lower the pressure can be. 28's - 32's can run around 70 - 90 and mountain bike tire generally run around 40. It amazes me some of the really thin tires - 21's and 23's can be blown up to 150 or higher - get a puncture and KAPOW-Y!!!!!! :eek:

Bruno28

08-15-2006, 12:34 PM

I have not encountered any difficulty with the valves-granted I have only know presta valves, so I am missing information.

The problem is I was used to 'normal' valves having only recently bought a serious bike. I think normal valves are now called shraeder valves and they are completely different. Or maybe you're just brighter than me! :p

Bikingmomof3

08-15-2006, 04:29 PM

The problem is I was used to 'normal' valves having only recently bought a serious bike. I think normal valves are now called shraeder valves and they are completely different. Or maybe you're just brighter than me! :p

No, I seriously doubt my intelleigence has anything to do with my tire knowledge or lack there of. :D I have been on a bike for slightly over a month. So, my only tire knowledge comes from those tires. Until this thread I assumed all valves were the same. :eek: I do so enjoy it here, I learn so many new things every single day. :)

Bruno28

08-16-2006, 05:52 AM

Bruno, those Presta valves are a bit temperamental. I have a floor pump and I still end up having to remove and attach the valve head a few times to get it lined up properly. If it's not aligned you'll get that feeling that the pump won't budge, but it's definitely not because the tire's full.

I see what you mean about it being easier to pump when it's 'lined up'....but I'm not sure what I'm lining up with what??? :confused: Maybe I just think about things too much.

DebW

08-16-2006, 06:31 AM

Presta valves can be sticky. Sometimes you have to hit the pin a couple times and let a little air out before the pump can put air in. And try to keep the pump chuck perpendicular to the rim. Moving the pump around on the floor until things line up is often helpful.

BleeckerSt_Girl

08-16-2006, 07:07 AM

I think on Presta valves, after you unscrew the little dohicky and it is all the way at the end of the piin, you are SUPPOSED to press it in a bit to let a LITTLE air out before attaching the pump to it. I was told this "opens" the Presta valve and makes it unstick and ready to accept the pump valve. Note: it can be a bit startling the first time when the air shoots out on your finger, but after that you expect it.

Kalidurga

08-16-2006, 08:33 AM

I see what you mean about it being easier to pump when it's 'lined up'....but I'm not sure what I'm lining up with what???

I'm guessing that what happens is that the valve stem can get knocked crooked if the pump chuck (thanks DebW, I wasn't sure what that's called) isn't put on just right, which would probably inhibit airflow. You do have to prime the valve, as DebW and Lisa S.H. described, but gettin' that chuck just right is always an issue for me.

Re: Proper tire pressure for thin road tires-- Does anyone here have access to the RoadBikeRider article archives? I seem to recall an e-newsletter a few months ago that talked about keeping road bike tires inflated to 85-90psi, regardless of what was recommended. I may have to pay for a membership and see if I can find that article. The guy made some interesting comments.

BleeckerSt_Girl

08-16-2006, 09:52 AM

I've also heard that one should occasionally replace the rubber end on the Presta pump vavle- that it does wear with use and won't form a good seal after a lot of use.

DebW

08-16-2006, 10:21 AM

I've also heard that one should occasionally replace the rubber end on the Presta pump valve- that it does wear with use and won't form a good seal after a lot of use.

It's just a rubber grommet and easy to replace. I've had them last 10-20 years however. Also if your pump head just screws down on the grommet, it makes a difference how tightly you screw it down. Too tight and the hole in the grommet gets smaller and may hold the valve open even when you're not pumping so that all the air leaks out. Too loose it may not seal well. If you're having trouble with your pump seal, try tightening or loosening the chuck head over the grommet.

Kano

08-16-2006, 06:47 PM

Okay, so these presta valves sound icky. too much fiddling. I think I might be more apprehensive about these than I was about the pedals!

Do they make such thing as road bike tires/wheels with schrader valves?

Karen in Boise

Kalidurga

08-17-2006, 03:14 AM

Okay, so these presta valves sound icky. too much fiddling. I think I might be more apprehensive about these than I was about the pedals!

In spite of how we've made it sound, Presta valves really are not that bad. I probably take off and re-align the pump head/chuck/thingie two or three times to get it right. Takes maybe one extra minute of fiddling. Based on what Lisa and Deb just posted, though, I'm thinking I need to do a little inspection on my pump valve.

Dogmama

08-17-2006, 04:38 AM

Re: Proper tire pressure for thin road tires-- Does anyone here have access to the RoadBikeRider article archives? I seem to recall an e-newsletter a few months ago that talked about keeping road bike tires inflated to 85-90psi, regardless of what was recommended. I may have to pay for a membership and see if I can find that article. The guy made some interesting comments.

I inflate mine to 120 (road bike.) I think 85-90 is WAY too low. You risk snake bite flats - where the tube gets caught between the tire and the rim. The holes appear like snake bites - or so I'm told - I can never find the %#$&^ holes in my tubes (as mentioned on another thread.)

A higher psi = less rolling resistance = easier to pedal. I'm 52 years old tomorrow, so I need all the help I can get!

rivergrl

08-17-2006, 06:39 AM

I was told by my LBS that 110 is what I should do for my road bike (Giant OCR1) and I should do 80-85 for my comfort bike (Giant Sedona). The valve on the road bike was a bit weird at first but after I let the air out by accident a few times I got the hang of it. Now I know to put the floor pump on it with the lever down and THEN lift up quickly to start pumping!

I also had to quickly clip out yesterday but I did it! I have had a fear of being put in a situation where I HAD to clip out quickly. I'm always aware to slow down while crossing a road and to get my left foot ready to clip out and yesterday I had to do it. I never assume someone sees me or is going to stop to let me cross. I always assume they won't stop instead of assuming they will. Mentally that helps me prepare somewhat.

Kalidurga

08-18-2006, 03:14 AM

roshelleuop

08-18-2006, 05:57 AM

I ride a specialized roubiax road bike and always keep them at 110. I check them every time I ride, no matter what the weather or temp.

Roshelle from Milwaukee :D :D

eclectic

08-18-2006, 10:54 AM

Found it: www.roadbikerider.com:The Case for Lower Tire Pressure (http://www.roadbikerider.com/UArant.htm#The%20Case%20for%20Lower%20Tire%20Pressure).

In my case, 85-90psi is just right for the tires on my 'cross bike. But I did find this interesting and Uncle Al's opinions might give the true roadies out there some food for thought (and conversation).

Interesting article thanks for sending it along :)

only 1000-1500 miles per tire?
What do the rest of you get?

I have 1650 miles on since april and and 2200 on since I bought the bike (Specialized Sequoia road bike) last year and am still on the original tires. And I know there are more miles left on them.
I must admit though they are all condition tires, not racing or thin ones. I keep them between 110 and 120 psi for regular rides