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Tire Pressure for very rocky conditions?
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Posted by: mlhend1---------------------
I ride mostly in rocky conditions (uwarrie, NC & Brown Mountain Chester,sc). I'm riding 100/100 (will be swtching to 110/100 when warn out) Dunlop 756. The KDX Manual suggests running the tires at 14 psi in rocky conditions, but several of my riding buddies suggest 20 psi. At this psi and when it rains, the clay material among the rocks become very slippery. 20 PSI doesn't lend itself to great traction on clay or slippery rocks. IS 20 psi really needed to prevent tire/rim damage?
Posted by: Robcolo---------------------
First of all, there are lots of numbers in between 14 and 20 [like 16]. There are also lots of different kinds of rocks - sharp rocks, round rocks, loose rocks , etc. There are lots of different riding styles in rocks - blast through - finesse through - wheelie through. There are lots of different tires--some with very stiff sidewalls [Cheng Shin, Kenda, Maxxis, IRC VE33]and some just the opposite --and-- lots of different weights of inner tubes from "standard" to "extra heavy duty". Finally, there are different suspension settings that will affect how the tire reacts to the terrain. Here in the rocky mountains I get by with 16 psi just fine but use the heavier tubes, the Ve33 tire, a revalved front & rear suspension --and I weigh 125lbs. If youweigh 225 you're going to have to add a bit more air. You simply have to experiment to find what works just for you and the way you ride.
Posted by: Mac---------------------
I weigh 200lbs and use a Michelin S12 with heavy duty tubes. I usually run 12psi and never had a flat, this is in "rocky" New England.
Posted by: Braahp---------------------
20.......holy cow that would beat me to death! I never use more than 14lbs. It has to be really rocky to even use that for me. I switched back to the 100/100 and like it better after many 110/100's.
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