Fork cap options / sheared comp screw
  • Davro-one
    Posts: 1
    Joined: Sun May 24, 2020 1:19 am

    Fork cap options / sheared comp screw

    by Davro-one » Sun May 24, 2020 1:28 am

    Hi guys sorry to open with a “ can anyone help post “ but I’ve recently bought a set of Showa crf450 forks ( I was told 2014 ) but looking at them I think that they are 2002-2005 - the issue I have is that the comp adjuster on one of them is totally chewed up - took the valve out and tried to free the needle which ended up shearing - can find anything in the zeta catalogue , therefore my question is “ what’s my options ? Does anyone have a serviceable valve out there or are these scrap ?
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    JimDirt
    Posts: 3916
    Joined: Sat Nov 25, 2006 6:31 pm

    Re: Fork cap options / sheared comp screw

    by JimDirt » Sun May 24, 2020 8:40 am

    Welcome to the site !! \:D/

    If they are in fact 05 - 08 forks then they are 47mm and Showa with 30mm pistons , if they are 03-04 they have 20mm pistons , if they are 02 they have 10mm pistons , none of which will fit in the other cartridge , so removing the cap assembly from the cartridge will tell you if it is 05-08 , anything later will need the matching triple clamps to fit , if they are 05-08 then you have to change the Fork Cap Assembly (The top part in the picture below which is a 02 with a 10mm piston as you can see in the top part all the way to the left side with the small O-ring on it near the nut for the valving , if it were a 30mm 05-08 it would have a piston about the same diameter as the Free Piston which is the part with the bushings and the larger O-ring right next to it on the left of the piston , but the middle part in the picture **the adjuster you damaged** can be replaced separately , but can not be bought at Honda separately , so you would have to find a used one at a suspension shop , or search EBay)
    Image
    The top part can be found on EBay or suspension shops may have some used ones laying around to sell , Honda does sell the complete part but depending on the actual year , it might be available new from Honda or it might not , 05 is not available , if it is a 06 it is and is $108.00 ,if it is a 07 it is $110.00 , if it is 08 it is not available from Honda ...... so knowing exactly what year they are is a major issue , as the internal valving is different , so if you had 1 - 05 fork , and the Fork Cap Assembly of a 07 fork , the valving would be different on each , racing , it would be a major issue , play riding not so much , but still might be noticeable ... , and again , same goes for buying used on EBay or used from a suspension shop ..

    If they are 2014 forks , then they are Air forks and 48mm KYB , and are completely different and would not fit without swapping triple clamps and would most likely be the Zeta parts you were finding
    2020 CRF450R
    02 CRF450R
    2006 CRF450X
    Image
    Weiser , Idaho

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