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Charts and formulas are nice but in my opinion overkill. don't exceed the MAX listed by the sidewall is a must. then try pressures from 100psi to the max and you be the judge which is most comfortable. once you find your comfort psi get a pump that has a marker dial on the gauge and pump up to the marker before every ride and you won't have any need to guess by feeling or pinch flat issues.
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Originally Posted by onRoffR
(Post 4934801)
don't exceed the MAX listed by the sidewall is a must.
Not really. I do this frequently with no ill effect. |
What tire pump with a pressure gauge built in would you guys recommend? There are a bunch for differing prices at REI, but I don't know how to tell which to buy. :(
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http://www.cbike.com/pumps_silca.htm
I like this kind. It only does presta, but the head has no moving parts, which is usually where pumps fail. |
As for CO2 - with a 12g unthreaded cartridge that can be bought at Walmart for around $7-$15(?) for a box of 20 will bring your tires to around 90psi....your appropriate riding pressure. It will get you home, and is much cheaper than the threaded cartridges. Thanks Alex |
Originally Posted by skiracing
(Post 4951943)
I need some help understanding the difference between unthreaded cartridge and threaded. I kinda get how the threaded works.... it screws on to one of those inflators... I think. But I'm not to sure how the unthreaded works?
Thanks Alex http://www.genuineinnovations.com/images/dumppump.jpg This type can usually use both threaded or unthreaded. When using unthreaded the cartridge is actually pierced as the head of the inflator is threaded back on to the inflator body. The body keeps the cartridge from shooting off when pierced. Most of these units have a hole drilled through the bottom of the body so that you can store a un-used unthreaded cartridge upside down until needed. The head only style must use a thread in cartridge. |
Cool, thanks for your help. I just got one from a LBS, kinda like the one she has but mine is the Innovations CO2 Ultraflate model, was on special for $20 cdn which is pretty good, the other store had a crappier one for 30 bucks. I can't believe such a low price point item can have such a difference from one store to another. So yeah, i got one that takes both cartidges. One thing the guy at the store mentioned is that when you get those cartidges from the regular store, i should watch out for them not to have any oil in them (apparently the ones for the air guns might have them and so on)... I'm guessing thats something I can read.
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Originally Posted by SDRider
(Post 4922130)
This can't be stated enough IMO. This is the best advice for avoiding flats...period. I haven't had a flat since January of this year and I know it is because I am religious about checking my tire pressure before each ride and avoiding hazards in the road.
I commute regularly on a road bike with 700x23c Continental GP4000s. I get thousands of miles out of them and rarely flat. Of course, I'm prepared for it if I do. I carry a spare tube and 2 CO2 cartridges in a seatpost bag and in my shoulder pack I carry another tube and a mini-pump. On weekend rides I only have the one tube in the seatpost bag though. I also carry a multi-tool in the seatpost bag. You're absolutely right. Tires, however, do make a world of difference. I'm riding on Vittorria Rubino Pros, and I've been getting flats steadily, even though I'm super careful with what I ride over. It's such a pain. I'll be upgrading to some Conti's or Michelin's as soon as I can, hopefully to prevent the flats that I've been getting! Excellent advice though. I agree completely. |
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