mtbDobby Posted May 5, 2011 Share im 84kg and have just changed my front to 1.9 and rear 1.8 - I cant see you needing to go over 2-2.1 bar no matter what weight Link to comment Share on other sites More sharing options...
MTB_Roadie Posted May 5, 2011 Share im 84kg and have just changed my front to 1.9 and rear 1.8 - I cant see you needing to go over 2-2.1 bar no matter what weight exactly...its like pumping you car tires to 3bar cause you weight 50kg more.... Link to comment Share on other sites More sharing options...
Stevief Posted May 5, 2011 Share With tubes i ran 2bar all round.Now with tubeless i run 1.8 bar rear and 1.9bar front.and never had a issue .I'm 70kg.Ditto Johan_Kleynhans 1 Link to comment Share on other sites More sharing options...
Lamber Posted May 5, 2011 Share exactly...its like pumping you car tires to 3bar cause you weight 50kg more.... Actually, if you read through your car's user manual- you'll see that there is a certain tyre pressure for loaded, and unloaded car. Mine is: 2bar for unloaded 2.2bar for loaded Kinda makes sense then increasing your pressure when more weight is applied- and if you take into consideration that the contact surface of a mtb's tyre is much smaller than a car's. I'm 88kgs, tubes, 2bar front, 2.3 back. anything less looks like i'm running with slow punctures A Jay and OutdoorJunkie 2 Link to comment Share on other sites More sharing options...
The Saint Posted May 5, 2011 Share I'm 68kg and run between 2 and 2.5 bar find anything lower than that I have problems on the flat hard stuff with getting the speed up and anything higher than that the bike slips too much on the wet stuff or is hard to handle in the sandy stuff. Link to comment Share on other sites More sharing options...
Mojoman Posted May 5, 2011 Share If you take the Crossmark tyres ( I have wire bead ones), they have a recommended inflation of 2.5 to 4.5 bar. Is the 2.5 bar not the lowest pressure that will allow the safest operation of the tyre? Any lower and you run the risk of damaging the sidewall or having the wheel slip out from under you? Link to comment Share on other sites More sharing options...
MTB_Roadie Posted May 5, 2011 Share Actually, if you read through your car's user manual- you'll see that there is a certain tyre pressure for loaded, and unloaded car. Mine is: 2bar for unloaded 2.2bar for loaded Kinda makes sense then increasing your pressure when more weight is applied- and if you take into consideration that the contact surface of a mtb's tyre is much smaller than a car's. I'm 88kgs, tubes, 2bar front, 2.3 back. anything less looks like i'm running with slow punctures I always ride on 2.2bar on the car....why? Because its harder on the road and feels so much better! and you cant pump your tire at the shopping centre after you bought a load of groceries,etc...but thats a other story... A Jay 1 Link to comment Share on other sites More sharing options...
GLuvsMtb Posted May 5, 2011 Share It also depends on what tyre you are running. My 2.0 Saguro's felt right at about 2 to 2.1 bar. The 2.2 Sag's are running beautifully at 1.8 bar. And I'm not a lightweight either at about 92kg. Higher volume tyres can be safely run at lower pressures. Baroudeur 1 Link to comment Share on other sites More sharing options...
Nikolais Posted May 5, 2011 Share http://www.pinkbike.com/news/Tech-Tuesday-tire-pressure-2011.html Pretty darn thorough Link to comment Share on other sites More sharing options...
Lamber Posted May 5, 2011 Share I always ride on 2.2bar on the car....why? Because its harder on the road and feels so much better! and you cant pump your tire at the shopping centre after you bought a load of groceries,etc...but thats a other story... Who says you cant? Edited May 5, 2011 by Lamber Link to comment Share on other sites More sharing options...
El Nino Posted May 5, 2011 Share im 84kg and have just changed my front to 1.9 and rear 1.8 - I cant see you needing to go over 2-2.1 bar no matter what weightWhat is the reason for your front being 1.9 and rear 1.8? Should the front not be less than the back or equal? I have my front (Schwalbe 2.25) at 1.5 bar and rear (Crossmark 2.1) at 1.8 and I weigh about 85kg. Link to comment Share on other sites More sharing options...
Grebel Posted May 5, 2011 Share Tube tyres (Kenda) 2,3 Bar front and rear seems to work well for me in all conditions. I weigh 90kg. Hard enough to keep rolling well on the hard stuff and soft enough to grip in the soft stuff. I find it too much of a mission to fiddle with different pressures for different conditions. You probably only adjust a few kPa anyway. This is MTB not F1... For me it was easier to find a compromise and adjust my riding style when I need to. Kenty 1 Link to comment Share on other sites More sharing options...
MTB_Roadie Posted May 5, 2011 Share Who says you cant? haha...ok show me everytime you do that after your grcery shopping, and then you deflate it to 2bars again....if you do you seriously need to find a way to spend your free time..... Link to comment Share on other sites More sharing options...
awesme Posted August 2, 2011 Share Hi guys What is a good pressure to pump tyres to for With Tubes With No Tubes. weight = 68-70kg G Link to comment Share on other sites More sharing options...
eyecandy Posted August 2, 2011 Share Depends on the terrain. Very rocky and ill lower mine to 1.5/1.6 for more grip. Something like a Babbas ride, maybe 1.8/1.9. (tubeless - 29er) Im about 55kg's. Edited August 2, 2011 by eyecandy Link to comment Share on other sites More sharing options...
awesme Posted August 2, 2011 Share XC / Casual riding like Rietflei in the South.G Link to comment Share on other sites More sharing options...
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