scrambler Posted March 23, 2014 Report Share Posted March 23, 2014 I recently bought a 2013 Ossa 280i. It's better than I ever hoped it could be. Lovely to ride, and lovely to look at. I'm not even having any trouble starting it! I'm a relative novice to trials, and my previous bike had no clickers to adjust the damping front or back. So now I have this wonderful top end suspension, but not a clue how to set it up. And as you probably know, adjusting the Ohlins shock is a little more involved than just reaching down and twisting a clicker. So some guidance on some initial settings would be much appreciated. If it helps, I weigh about 68kg. Quote Link to comment Share on other sites More sharing options...
ric h Posted March 24, 2014 Report Share Posted March 24, 2014 This should get you started.Important tip...remember where it was,Make notes. http://www.gasgas.com/Pages/Technical/trials-suspension-tips.html Quote Link to comment Share on other sites More sharing options...
scrambler Posted March 25, 2014 Author Report Share Posted March 25, 2014 The thing is, and this is my only criticism of the bike, the rear shock adjusters are impossible to get at without partially dismantling the bike. So ideally I would like to set the damping somewhere close to optimum using other peoples experience, (this is starting to make me sound lazy) and then just get out there and ride. Quote Link to comment Share on other sites More sharing options...
jsp Posted March 25, 2014 Report Share Posted March 25, 2014 nigel birket uses the sag method Quote Link to comment Share on other sites More sharing options...
canada280i Posted March 25, 2014 Report Share Posted March 25, 2014 I have the shock adjustment guide pout out by OSSA Canada, PM me your5 e-mail address and I will send to you if you don't have it, contains a couple of tricks that avoid some of of the dismantling Quote Link to comment Share on other sites More sharing options...
robp247 Posted April 11, 2014 Report Share Posted April 11, 2014 Anyone got any tricks to stop the thread moving round when trying to compress the spring?? Quote Link to comment Share on other sites More sharing options...
scrambler Posted April 13, 2014 Author Report Share Posted April 13, 2014 Anyone got any tricks to stop the thread moving round when trying to compress the spring?? Yes. I wrapped some old rubber transmission v belt around the threads and clamped it in a vice. Why did they make the shock like that? I set the sag at 1/3 of the suspension travel. I took a guess that the travel is 175 mm as I couldn't find the spec for that anywhere. Quote Link to comment Share on other sites More sharing options...
pindie Posted December 9, 2018 Report Share Posted December 9, 2018 (edited) Anyone ever find an easy way to adjust shock rebound? I can get to the comp adjustment ok but rebound has proved a non starter from the side. Do I need a long bubble end Allen key and do it from above with the spark plug removed? All sorted. It did need a long ball end for rebound adjustment and a cut down one for compression. No longer quite so crashy. Edited December 13, 2018 by pindie Quote Link to comment Share on other sites More sharing options...
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