I bought some Road bike tires and tubes recently to upgrade my cummuter/hybrid into a road bike. It's a very old bike that I got second-hand. It has rims that were made for Schrader valves. But when I got my road tubes at the store, the guy told me they dont make schraeder valve tubes anymore, but that I could buy this piece called a converter.
I haven't installed any pieces yet, because I don't have the " cconverter". Recently i talked with a friend, and he didtn't understand why I needed this piece.
So what I'd like to know is, DO I REALLY NEED TO BUY THE CONVERTER FOR MY TUBE VALVES ?
If I don't , do I run the risk of breaking something or damagin/piercing my tube ?
2007-10-29 12:00:29 · 7 answers · asked by Anonymous in Sports ➔ Cycling
DUDE' top contrubutor guy.... I want presta.. they can handle 120 psi much eachier.... thast why i got em in the first place. i was just wondering if i absolutly needed the pieces.
Apparently yes.
My bike is very old and he told me that I'd have to buy another piece to make it work. So hes nto an idiot. Yoru thwe idiot here.
2007-10-29 13:11:07 · update #1
He told me everythign I needed to know. So I don't see where the problem is. I'll just buy those rim savers and ill be able to have presta tubes, nto comlicated dick-wad
2007-10-29 13:14:31 · update #2
PS: They wont support it, ... only if they don't have converter rim savers.
If they do have that on, then it won't be a problem, now will it ?
2007-10-29 13:56:16 · update #3
The answer is simple. You need the adapter because the presta valves are too small for the rim hole. This is not a problem until you put some miles of the bike. Since the valve moves around in the hole, the area around the valve will become worn down and eventually cause a flat. Under high pressure this could happen on the first ride.
2007-10-29 13:45:38 · answer #1 · answered by Jay P 7 · 0⤊ 0⤋
Schrader valve tubes are still made and available at nashbar.com and many other places. What the guy really meant was: "I ain't got any so buy these instead 'cause I don't care about you". So he was a big enough idiot to sell you the wrong tube then tell you to go get the part to make it work???
You do have to buy a "presta saver" and they are at nashbar, I just checked. The presta valve is narrower than the schrader so you need something to fill the gap or your tube will pop sooner or later. Or take the tubes back and get the right ones for your rims.
2007-10-29 19:43:48 · answer #2 · answered by Anonymous · 3⤊ 0⤋
Wow.
To answer your question directly, YES, you will need the valve savers.
To the repair guys point, schraeder valves are meant for high volume low pressure applications such as MTB tires and car tires where pressures are generally under 70 psi. Presta valves are low volume high pressure where there might not be much air in the tube but there is a lot of pressure.
Keep in mind that volume (amount of air) and pressure are 2 different things.
EDIT: Keep in mind that just because the tubes can handle the pressure it doesn't mean the tires can. I have seen more than my share of tires blowing off the rim because of overinflation... or even riding in hot weather which expands the air and can cause a blowout.
2007-10-30 09:34:16 · answer #3 · answered by bikeworks 7 · 1⤊ 0⤋
What he is talking about is rim savers. Schrader values are large rubber values for a bigger rim. Schraders are still available and can be found in most deparment stores. Go for Presta values because the hold the air better and are designed for High Pressure. Schrader won't hold 120 psi well at all. Get rim savers from Nashbar and buy several your friends might like you.
2007-10-29 19:10:54 · answer #4 · answered by Anonymous · 0⤊ 0⤋
HEY! watch the abusive retorts. M R happens to be right on with his answer. Your tires probably wont support 120 psi if they fit rims made for schrader valves. Good luck. Your next question will be, "Why do I keep blowing tubes?"
2007-10-29 20:45:42 · answer #5 · answered by McG 7 · 1⤊ 0⤋
roger that mcg. while im sure that MR can defend him self , i feel compelled to state that this is generally a very friendly and informative forum and that MR is a top contributer for a reason, he has helped me tremendously in the past and im sure will again in the future. his answer is correct, it may not make you happy and may call your consumer savy into question but its the truth. you will need the rim savers because the guy at the bike shop sold you the wrong stuff, weather he did so knowingly is irrelevant at this point. buy the savers or shrade tubes, its your choice.
oh and as a point of contention, ive run shraders as far as 100psi with no problems. never tried 120 as the tires were not rated past 100.
good luck to all
ride on
EDIT:
http://www.nashbar.com/results.cfm?category=600097&subcategory=60001057&storetype=&estoreid=&init=y&pagename=Category%3A%20Tubes
clicky the linky to buy the thingy
2007-10-29 21:34:44 · answer #6 · answered by Anonymous · 1⤊ 0⤋
Will you stop being so foul and abusive? You obviously don't have a clue what you are talking about so why critize those who do? Listen to the advice! Why ask a question and hurl abuse at those who answer?
You CAN get tubes for all three types of tubes. So he's the idiot, and for doubting the opinions of those who know it looks like you are too.
2007-10-30 10:27:13 · answer #7 · answered by Anonymous · 0⤊ 0⤋