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  1. zero knowledge

    Schwalbe introduces Dual chamber tires for ultra low pressures

    That's where I took the word from, it wouldn't be my choice. For me that's a later start of the feedback together with more control at the limit.
  2. zero knowledge

    Schwalbe introduces Dual chamber tires for ultra low pressures

    Vague ... you could say it that way as well. I've run that tire both ways on purpose for comparison reasons. It grips very well in either case, but the tire's "voice" is heard a bit later when run backwards. On dry loose over hardpack terrain, the sensation of the tire's initial slipping is more...
  3. zero knowledge

    Fork Rake on 27"(650b)forks, marketing wank or needed?

    Fair enough, but maybe just semantics - significant and insignificant in our statements are the extremes. A single degree HA change is somewhere in between, it won't make the bike unrideable. Going for example from 64 to 63 won't be as drastic as going from 64 to 59.
  4. zero knowledge

    Fork Rake on 27"(650b)forks, marketing wank or needed?

    Trail (mechanical) will increase by less than 6mm if you go from a 26 to a 27 rim and use the "same" tire. And since this is the Downhill forum, in steering feel that is roughly equivalent to slackening the head angle by 1 degree or raising the crowns by 20-25mm. It can be felt by some of the...
  5. zero knowledge

    That maxxis tire they just came out with that no one seems to give a shlt about

    It's not that hard to try it - just put it backwards on a trail that braking is not that critical. I've done this with a slightly worn MM in the spring. It's not a huge difference until you start to push it. On the limits of traction the tire let's go a bit later and rapid changes of direction...
  6. zero knowledge

    Spring rate change by cutting springs??

    In theory the spring rate is inversly proportional to the number of active coils. So if you halve the number of active coils, you'll double the spring rate.
  7. zero knowledge

    Cheap ISIS crank with removable pedal inserts?

    The pedal inserts in the Gravity Maximus are splined, so you can easily take them out with a hammer.
  8. zero knowledge

    Element technic nickel-wide flat bar

    The relationship between Total, Up, and Back sweep is: cos(T) = cos(U).cos(B) So a bar with 9 degrees total sweep, rotated to give 5 deg upsweep will provide 7.5 deg of back sweep.
  9. zero knowledge

    DW's new suspension design. the split pivot.

    You are right, but probably missing that the rear brake (and essentially the rear wheel) is attached to the seatstays, #2. That's why the IC is #15.
  10. zero knowledge

    Weird Code Issue

    This reminds me of a conversation I had last year with the head engineer at Formula. Discussing brakes of course, he was surprised at Sram's decision to use magnesium for Codes. He mentioned that they were having problems in the past with B4 SL mag brakes forming micro-bubbles because of the...
  11. zero knowledge

    DH Brake Poll

    On steeper tracks I have experienced lack of power with Saints and Juicys I have ridden. I'm with weak hands and was used to Gustavs in the past. This past season I rode Oros and they were powerful enough for me, even in Champery, and The One with 180mm rotor was more powerful than Oro with 200...
  12. zero knowledge

    Do pros all run tubeless?

    As far as I know, some of those guys were running tubes, because they preferred the feeling over tubeless.
  13. zero knowledge

    Reviews: Vivid, D24s, Twenty6 Levers

    I remember that discussion and just re-read it, but the symptoms with mine seemed a bit different when that was happening. After leaving the fork for a while, it was fine afterwards. This led me to think that it wasn't a stuck plate, since Udi's needed intervention. The cause might be the same...
  14. zero knowledge

    Reviews: Vivid, D24s, Twenty6 Levers

    Udi, have you ever had inconsistent damping with running a lot LSC? I had problems with the oil staying up in the damper and not draining fast enough on rebound - that's with 1 or 2 clicks from fully closed. This left me with no damping initially and then a harsh transition back to damping...
  15. zero knowledge

    Any one have time on Hope Motos or the new formulas?

    I have ridden the new formulas and was really impressed. In my experience The One with 180mm disc is more powerful than Oro with 200mm. Out of the two new formula models, I found The One to be more powerful than Mega.
  16. zero knowledge

    New Formula Dh/freeride Brakes

    The One w/180mm disc is more powerful AND lighter than Puro w/200mm disc. Amazing brakes, and with a number of different linkages for the lever you can have a on/off brake (for Matti and Cedric), a very progressive one (for Greg and Nico), or something in-between.
  17. zero knowledge

    30 mins of Schladming WC on Eurosport 2

    "On 7th August Eurosport 2 will send a report at 6.30 pm (CET, that is 16:30 GMT) about the World Cup Event in Schladming. This is the first time that a report about the Nissan UCI Mountainbike World Cup will be broadcast in Europe."
  18. zero knowledge

    30mm verses 50mm stems handling

    What determines handling in a bar-stem combo is hands/grips position relative to the fork steer tube (look at your bar-stem combo as a whole thing). So bar tilt (along with back- and up-sweep) will be another variable to the handling characteristics. As an example, a 30mm stem with bars tilted...
  19. zero knowledge

    Marzocchi Roco low speed compression..

    What is your weight and spring rate? Does that redline mixture provide you with light enough compression and rebound damping? Right now I'm using motul shock oil, which is 16.1 cst@40C and redline's like water is 5.5 cst@40C. I'm still playing with removing some shims and swapping others. From...
  20. zero knowledge

    Marzocchi Roco low speed compression..

    I tried a Roco on my Sunday and the stock valving provides too much damping for both compression and rebound. You will have to change most of the shims if you want it tuned properly. I cannot source some of the shims needed and for now I'm just experimenting with removing some of them in order...
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