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Post by anshwa on Jun 15, 2007 0:30:27 GMT 8
Need help from the trials experts here.
I've just converted the STP into a street trials/DJ rig (best of both worlds). Right now I have 22/18 gearing right now. Once I'm sure I won't be hitting a derailleur anymore, I'll be putting on a road cog & a rear der so I have enough gears for the park & jumping (I could get by for now as the spot I go DJ'ing has roll ins.
Anyway, what tire pressure do you guys use on a 26" wheel? I'm 165lbs. & consider me a real novice so I'm not as smooth as riders here. My bike's also not as light as a trials rig. The wheelset I have is pretty heavy & burly (for DJ & FR). Using Kenda Kinetics 2.35 (not Sticky-E's). Thanks for any help!
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Post by Patrick on Jun 15, 2007 12:26:00 GMT 8
For trials as low as you can get. For DJ I have no idea.
I'm using somewhere around 20 psi in the rear and 15 psi in front (for my rigid fork). The side walls of the tires suffer because of this they get worn out like the knobs themselves so get a thicker sidewall tires.
Better get a road cog with a 19T for all around trials, good for urban and natty ... just get an 8 speed cog for thicker chain, avoid going 9 speed for trials or replace your chain often. The better you get the more often you need to replace the chains.
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Post by alien_scream on Jun 15, 2007 12:28:47 GMT 8
go for 20PSI!!!!!
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itohs
XC Rider
Shoti
Posts: 103
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Post by itohs on Jun 15, 2007 13:33:57 GMT 8
 Benito Ros Tire Pressure |
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Post by anthrax76 on Jun 15, 2007 14:29:47 GMT 8
Prolly OT already, but for stock trials bikes.....i suppose you could go tubeless right?
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Post by alien_scream on Jun 15, 2007 16:16:50 GMT 8
Prolly OT already, but for stock trials bikes.....i suppose you could go tubeless right? nope!!!! your running your tire pressure so low that you would let your air out if you go tubeless!!!!! |
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Post by Patrick on Jun 15, 2007 19:19:20 GMT 8
Prolly OT already, but for stock trials bikes.....i suppose you could go tubeless right? nope!!!! your running your tire pressure so low that you would let your air out if you go tubeless!!!!! They call that "burping", the air will go out through the side of the tire. |
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Post by Patrick on Jun 15, 2007 19:23:14 GMT 8
Benito Ros Tire Pressure Whoa ;D |
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Post by joolz01 on Jun 15, 2007 20:01:14 GMT 8
when in "padjak mode" i go for 30psi rear 25psi front... for the trials sessions usually 25psi rear and front... dont really know i just kinda squeeze and feel my tires before i play and just let some air out if i feel it hard... but pat is right the lower pressure you have, the better feel you have..  |
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Post by anshwa on Jun 15, 2007 21:55:29 GMT 8
Thanks for the replies, mga bros. Wow, 20-25psi is half the pressure for DJ & park! So does this mean it's normal for the rims to be hitting the ledge or edge of the stuff you're getting on? I thought that was bad when I do it pedal kicking up a ledge.
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Post by Patrick on Jun 15, 2007 22:36:02 GMT 8
You should see TRA do trials without tires in the front wheel.
Just absorb the landing and you'll be fine...and oh get a wide rims on the rear.
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Post by anshwa on Jun 16, 2007 0:02:52 GMT 8
Pat, I'm using pretty burly wheels (they're for DJ & FR) & the rims are pretty wide. For now, I'm using disc brakes both sides. I'll upgrade the rear rim & changeover to v-brakes as it breaks. Besides, to be honest, I'm not good enough to warrant upgrading to a more "ideal" trials set up - hehe. We'll see in the coming months - or years.
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Post by joolz01 on Jun 17, 2007 12:39:11 GMT 8
Thanks for the replies, mga bros. Wow, 20-25psi is half the pressure for DJ & park! So does this mean it's normal for the rims to be hitting the ledge or edge of the stuff you're getting on? I thought that was bad when I do it pedal kicking up a ledge. its normal to hit the rims sometimes brad and btw for the rear, slice an old tube and wrap it around your good tube (interior), now you have 2 tubes in your rear tire, this way it minimizes "snakebites" on your tubes... and allows you to play on low tire pressure... adds a few grams but adds life to the tubes... and best way is learn to be smooth in landing.. wehehehe have fun brad |
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Post by anshwa on Jun 18, 2007 19:41:16 GMT 8
Cool. So it's just like what they do w/ downhill tires. Thanks Joolz!
OT: Did a short session on a small freeriding ladder & skinny set up at a friend's house. Did those balancing tips in Ryan Leech's DVD & it's awesome!
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Post by forcebinder on Aug 20, 2007 13:55:23 GMT 8
Hey!
I rode trials before, now I'm riding street so I guess I have little knowledge now about trials but I can still remember that I ran both my tires with 30-35 psi to ensure I won't get a pinch flat. That's just me so just feel free to experiment on your tires.
Wide rims help too...My tires are 2.3s but I run them with 2.5 tubes so as not to "blow up" the tubes if I pump too much air. So far so good.
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