Setting up Magura Thors?

giantjason
giantjason Posts: 89
edited July 2010 in MTB workshop & tech
have been riding on some 2010 Magura Thors for several months and really struggling to get them setup correctly. Does any one have any advice?

i am around 13st and have them on a Turner 5Spot.

I seem to be getting lots of brake dive and they blow through nearly 3/4 of the travel when just riding along resulting in no travel left for the bumps!!

i have tried a range of pressures from 70-120psi with no success. I have also correctly pressurised them by turning the FCR.

What are people running as their air pressure and rebound settings. My next tweak will be playing with the compression damping to see if that works but i think that by turning the damping on the fork will lose its plushness.

has anyone any ideas?

Comments

  • supersonic
    supersonic Posts: 82,708
    Set your sag, ideally around 25%.

    Now play with the damping. There is no right or wrong, just what suits you. The comp damping is there to help prevent dive and bob.
    GT ZASKAR CARBON TEAM

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  • giantjason
    giantjason Posts: 89
    doing a search on the internet the compression damping should be used more as a pedal damping instead of reducing brake dive.

    will increasing the compresion damping not result in the fork losing small bump compliance?

    i tried setting the fork at 25-30% sag but this appeared too soft.

    If i speed up the rebound will this help reduce the brake dive?
  • supersonic
    supersonic Posts: 82,708
    It can be used for both. Brake dive is from slow speed compressions and this is what the adjustment will help prevent. If the fork is packing down, less rebound will help.

    Increasing the damping may stifle some small bumps, but you can't prevent dive any other way with this fork.
    GT ZASKAR CARBON TEAM

    VOODOO CANZO

    Come and see me at https://www.facebook.com/biketyke/
  • giantjason
    giantjason Posts: 89
    what do you mean by 'packing down'.........is this the fork sitting lower in its travel?

    at what speed on the trails does the low speed compression become ineffective? e.g. will my fork regain some of the suppleness at higher speeds of compression that was lost at low speed due to the compression damping having been increased?
  • supersonic
    supersonic Posts: 82,708
    Does the manual not explain any of this?

    If the rebound is too slow, then the fork will not have extended for the next hit. So over a lot of close hits it will get further into the travel. This is NOT the same as brake dive.

    The speed of your bike is not what we are talking about here, but the speed of compression of the fork. Big drops and square edged hits are high speed impacts. Brake dive and bob are slow speed. Increasing the low sped compression.

    Looking at the features, the damper adjustment is a low speed platform type damper which creates a lockout, which can be turned completely off. This should not be effected by high speed compressions, but will set how the fork reacts to low speed hits and what force is required to move the fork.

    Again best to experiment.
    GT ZASKAR CARBON TEAM

    VOODOO CANZO

    Come and see me at https://www.facebook.com/biketyke/
  • richg1979
    richg1979 Posts: 1,087
    Maguras do have a very linear compression much like a coil and does make them very plush but you will get a bit more bob and dive than say fox and RS wich ramp up after the 50% of travel.

    Im running wotans and dont use any platform appart from uphill out the saddle hammering and dont find bob or dive any prob, it is there but does not affect the ride any way.

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