SuzieQ Posted October 4, 2013 Share #1 Posted October 4, 2013 when it comes to my Mt bike What psi do I pump my 29 tires to? Link to comment Share on other sites More sharing options...
0 Randomguy Posted October 4, 2013 Share #2 Posted October 4, 2013 Are they tubeless tires or regular tires with a tube inside? Are you planning to put some sort of special air in the tires? Link to comment Share on other sites More sharing options...
0 az_cyclist Posted October 4, 2013 Share #3 Posted October 4, 2013 there should be a recommended pressure on the sidewall Link to comment Share on other sites More sharing options...
0 jsharr ★ Posted October 4, 2013 Share #4 Posted October 4, 2013 I would go to the middle of the recommended pressure range and then adjust from there. Lighter riders usually need less air pressure. 1 Link to comment Share on other sites More sharing options...
0 Nate Posted October 4, 2013 Share #5 Posted October 4, 2013 I like to listen to Johnny Cash when I pump up my tires, but you can pump your tires up to whatever you like, really 2 Link to comment Share on other sites More sharing options...
0 SuzieQ Posted October 4, 2013 Author Share #6 Posted October 4, 2013 Are they tubeless tires or regular tires with a tube inside? Are you planning to put some sort of special air in the tires? regular tube tires. I'm putting autumn air in silly! Link to comment Share on other sites More sharing options...
0 jsharr ★ Posted October 4, 2013 Share #7 Posted October 4, 2013 If you will post a picture of the side of the tire where it tells you the inflation range, we can tell you how much air to put in. Link to comment Share on other sites More sharing options...
0 SuzieQ Posted October 4, 2013 Author Share #8 Posted October 4, 2013 If you will post a picture of the side of the tire where it tells you the inflation range, we can tell you how much air to put in. it doesn't say, just gives the size Link to comment Share on other sites More sharing options...
0 jsharr ★ Posted October 4, 2013 Share #9 Posted October 4, 2013 keep looking, all the way around, both sides. Or tell us the make and model of tire and we can go from there. Link to comment Share on other sites More sharing options...
0 SuzieQ Posted October 4, 2013 Author Share #10 Posted October 4, 2013 Bontrager 29x2.00 - 2.40 does that mean 40 psi? Link to comment Share on other sites More sharing options...
0 JerrySTL ★ Posted October 4, 2013 Share #11 Posted October 4, 2013 I like to listen to Johnny Cash when I pump up my tires, but you can pump your tires up to whatever you like, really That Old Wheel or That's Enough? Link to comment Share on other sites More sharing options...
0 jsharr ★ Posted October 4, 2013 Share #12 Posted October 4, 2013 That sounds like the inner tube size Link to comment Share on other sites More sharing options...
0 Reverend_Maynard Posted October 4, 2013 Share #13 Posted October 4, 2013 I'm assuming you weigh in the 100-120lb range, so probably 20 psi front, 24 psi rear would be a good starting point. If they feel bouncy, let some out, if they feel too squirmy and or you are bottoming out, add a little more. Link to comment Share on other sites More sharing options...
0 Road Runner Posted October 4, 2013 Share #14 Posted October 4, 2013 It's on the tire. Keep looking. Link to comment Share on other sites More sharing options...
0 Reverend_Maynard Posted October 4, 2013 Share #15 Posted October 4, 2013 As someone who MTBs quite a bit. Do not use the range on the tire. It will be too high and you'll be short changing yourself on the traction end. Link to comment Share on other sites More sharing options...
0 SuzieQ Posted October 4, 2013 Author Share #16 Posted October 4, 2013 Well I couldn't wait any longer and went for my rides I guestimated 40 and just checked the tire now with a flash light..... and it says 30 - 50. I weight about 123. Had such an amazing day on the bike!! first with dogs, then no dogs 1 Link to comment Share on other sites More sharing options...
0 Reverend_Maynard Posted October 5, 2013 Share #17 Posted October 5, 2013 Next time try 30. Trust me, it will be much better. After that try 25. It will be better still. 1 Link to comment Share on other sites More sharing options...
0 Reverend_Maynard Posted October 5, 2013 Share #18 Posted October 5, 2013 http://www.bike198.com/correct-tire-pressure/ 1 Link to comment Share on other sites More sharing options...
0 Indy Posted October 7, 2013 Share #19 Posted October 7, 2013 It really depends on the trail you are riding. On a MTB tire it's usually 65 lbs max. Most of the trails I run are hard and fast so and I typically run mine at 60psi, probably about the only guy too, but that's what I like. I also run one heck of a stiff front fork. Generally, if you aren't sure, start out around 40 and adjust from there, which generally means letting out air. Link to comment Share on other sites More sharing options...
0 jsharr ★ Posted October 7, 2013 Share #20 Posted October 7, 2013 Winter air is harder than melty summer air, so you have to use less of it 1 Link to comment Share on other sites More sharing options...
0 jbrow1 Posted October 17, 2013 Share #21 Posted October 17, 2013 You've tried 40, try 20 next time and see how that feels. Then you have two experiences to compare and adjust from there. If it's rooty and/or rocky you'll know if you're to low b/c you'll feel the rim hitting rocks. Not a big deal, may pinch flat, but you'll know for sure what's to low, or that you didn't unload enough over whatever you hit Link to comment Share on other sites More sharing options...
0 Indy Posted October 17, 2013 Share #22 Posted October 17, 2013 You've tried 40, try 20 next time and see how that feels. Then you have two experiences to compare and adjust from there. If it's rooty and/or rocky you'll know if you're to low b/c you'll feel the rim hitting rocks. Not a big deal, may pinch flat, but you'll know for sure what's to low, or that you didn't unload enough over whatever you hit Run out of tubes and patches 10 miles from the trail head, then ask if it's a big deal. Link to comment Share on other sites More sharing options...
0 jbrow1 Posted October 17, 2013 Share #23 Posted October 17, 2013 Run out of tubes and patches 10 miles from the trail head, then ask if it's a big deal. A big deal that probably won't happen again. If it's rocky/rooty or 20 is to mentally skittish try 25. Have fun, pressure is fun to play with Link to comment Share on other sites More sharing options...
0 Indy Posted October 17, 2013 Share #24 Posted October 17, 2013 A big deal that probably won't happen again. If it's rocky/rooty or 20 is to mentally skittish try 25. Have fun, pressure is fun to play with I'm just a pump it up in ride, been doing it for a couple decades now and really hasn't bothered me. Honestly, I think people over think this stuff and makes it far more complicated than it needs to be. Is there times lower pressure me help you, yes, but there's also times where higher pressure helps you and trails (at least the funnier ones) have different things, so who cares about pressure, go ride and have fun. Link to comment Share on other sites More sharing options...
0 Ralphie ★ Posted October 18, 2013 Share #25 Posted October 18, 2013 Winter air is harder than melty summer air, so you have to use less of it I guess Indy can verify this, but isn't winter wheat also harder than summer wheat? Link to comment Share on other sites More sharing options...
0 Ralphie ★ Posted October 18, 2013 Share #26 Posted October 18, 2013 I like to listen to Johnny Cash when I pump up my tires, but you can pump your tires up to whatever you like, really Elvis for me. Link to comment Share on other sites More sharing options...
0 Square Wheels Posted October 18, 2013 Share #27 Posted October 18, 2013 tsk tsk, please keep the posts factual and serious. We have a whole (active) section for other posts. Link to comment Share on other sites More sharing options...
0 jsharr ★ Posted October 18, 2013 Share #28 Posted October 18, 2013 I am pretty sure I was right about the seasonal air. Link to comment Share on other sites More sharing options...
0 Reverend_Maynard Posted October 18, 2013 Share #29 Posted October 18, 2013 The only thing I have left to add is that, IMO, there's a huge benefit in traction when running the lowest possible pressure, meaning the pressure that just barely avoids pinch flats. In my experience, with my pump's gauge, when I weighed 225 and riding my 26er with tubes, that was about 30 front/ 34 rear. Now that I weigh 175 and riding a 29er tubeless, it's about 20/22 (though my pumps gauge seems to read a little lower than others). Call it over thinking to try to find the ideal pressure, but IMO, it's no different than a proper fitting, the right saddle, etc. All seem like minor things, but to the enthusiast, they make all the difference in the world for your riding experience. Link to comment Share on other sites More sharing options...
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SuzieQ
when it comes to my Mt bike What psi do I pump my 29 tires to?
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