Jump to content

emil

Members
  • Posts

    13
  • Joined

  • Last visited

Contact Information
 
   
  1. Ok. I thought the mechanical spring did absorb all static loads. It
  2. I can really recommend this link: http://www.gasgas.com/Pages/Technical/trials-suspension-tips.html
  3. A few beers make things a little harder (or easier)... That was a good solution! I will try that next time when I have measurement help in the garage.
  4. I always start by measure total distance with both wheels off the ground. Then I measure static and race sag from that point. In my case, free play in linkage will affect the results. It seems like the linkage worn out pretty fast on Gasgas. My bike does still have the original chain, but the linkage is loose and mowing about 20 mm. I agree David, torque settings should be included to every new bike.
  5. Thanks David for a good answer. I've also had some enduro bikes, latest was a KTM EXC 200 -08. Like you say, in enduro there is plenty of information regarding suspension. With good suspension settings on an enduro, it's much easier to ride faster. I'm a beginner at trial, but I know the importance of suspension. That
  6. When reading threads about race sag, everyone seems to agree that 1/3 is a good adjustment for the shock. The forks seems to be somewhere between 1/3 and 1/6. Do people use to have the preload nearly maximized to obtain 1/3 at the shock on Gasgas bikes? For me it seems like the spring is too soft when the preload has to been maximized, but that might not be a problem? I can add that I had the exact same problem on my previous Gasgas 125 -07. I am very careful when measuring sag and I have done it before on some enduro bikes without problem. I'm sorry for questioning a lot of question on this topic, but I really want to know how it works.
  7. Even if the preload is maximized? My manual says that the total stroke front is 177 mm and 164 mm rear. Then sag should be 59 mm front and 55 mm rear. I measure from the rear wheel axle, vertical to the rear fender. To achieve 55 mm at the rear, the shock preload must be compressed to its bottom. This seems strange when my weight is 65 kg and the bike is designed for over 70 kg.
  8. Thanks Jon for a good answer and a good article! I will follow your advice and try to test till I find a good solution. I just thought it was strange that I had to maximize the preload of the shock to obtain 1/3 race sag.
  9. Race sag is measured when you are standing on the bike with all riding gear. This link explains it better: http://www.gasgas.com/Pages/Technical/trials-suspension-tips.html Should I post this thread in "general trials talk" or somewhere else? I thought this was a common problem.
  10. The static sag is zero at the rear, when race sag is 1/ 2.5. To achieve 5-10 mm static sag, the race sag will be far from 1/3. Should I adjust the static sag and don't care about the race sag? I appreciate all the help I can get!
  11. I've only been riding trial for a year now. I haven't adjusted the suspension at all to this point. Now I want to start adjusting my suspension, and that's from a good starting point. I will check static sag tomorrow. What race sag should I start with at the forks (1/3 or 1/6)?
  12. I've been searching on sag settings in many threads and now I'm very confused. Many people are recommending this article by Jon: http://www.gasgas.com/Pages/Technical/trials-suspension-tips.html. The strange thing is that Jon says to adjust the race sag for the front forks to 1/6 of the total travel, but almost every thread in this forum says that 1/3 is the measure to go after. It's a big difference between 1/6 and 1/3, what value should I try to adjust the forks to? The total travel is 177 mm and the race sag is 43 mm with zero preload, somewhere between 1/6 and 1/3. Is that a good value, or should I adjust it? Another confusing thing is that my rear spring seems too soft. My bike is a GasGas 300 Raga -08. I've read that this bike is build for about 70-80 kg. My weight is 65 kg so the spring should be to hard for me. To achieve 1/3 race sag at the rear suspension I have to preload the spring to the bottom. With maximum preload the static sag will be around zero. Do I need a stronger spring even if my weight is bellow 70-80 kg? I really appreciate all help I can get to solve my problems.
  13. Can someone give me a tips what I should do. Yesterday I opened the right crankcase om my gasgas 270tx. After that the gearlever were hard to push upwards and downwards. //Emil
×
  • Create New...