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Fox Podium rear shock test rider needed for Beta Factory

Discussion in 'Trials' started by Vintage pro, Jan 13, 2020.

  1. Vintage pro

    Vintage pro Been here awhile

    Joined:
    Sep 26, 2013
    Oddometer:
    290
    Location:
    Stallion Springs , Ca
    Looking for a test rider for a prototype Fox Podium shock I'm going to build in the next month. I will do the initial testing and will want a test rider from the age of 18 to 35 years of age and at rider level of Advanced to Expert level, that ride at the top of there class. The shock will be built for Beta Factory model bikes from 2017, 18,19 & 2020 factory t2 models. Rider weight between 140 to 190 Lbs. The std. EVO uses a different shock and linkage.

    Attached Files:

    #1
    DyrWolf likes this.
  2. motobene

    motobene Motoing for 49 years Supporter

    Joined:
    Mar 9, 2013
    Oddometer:
    7,402
    Location:
    Wichita Mountains SW Oklahoma
    I'm the perfect candidate for providing high-level feedback. I'm a mechanical engineer with a design and build career supplemented by decades of trials competition and off road riding (Beta 390). I win most of the local events. Older and crusty, so there's that.
    #2
    Huzband likes this.
  3. heffergm

    heffergm Been here awhile

    Joined:
    May 23, 2019
    Oddometer:
    435
    Location:
    USA
    I can mention it if you don't sign up 'bene (although why you wouldn't is beyond me ;) ). We have one expert on a factory Beta. Our champ who rides Beta rides a modded standard model.
    #3
  4. heffergm

    heffergm Been here awhile

    Joined:
    May 23, 2019
    Oddometer:
    435
    Location:
    USA
    I don't know who you're responding to, but let me re-write my response so as to lessen doubt regarding my reading comprehension:

    I can mention it [to our local Beta riders] if you don't sign up 'bene (although why you wouldn't is beyond me ;) [my assumption being Bene has a Beta kicking around. Since he replied, I made that assumption). We have one expert on a factory Beta. [I'd ask] Our champ who rides Beta [, but unfortunately he] rides a modded standard model.
    #4
    Norman Foley likes this.
  5. motobene

    motobene Motoing for 49 years Supporter

    Joined:
    Mar 9, 2013
    Oddometer:
    7,402
    Location:
    Wichita Mountains SW Oklahoma
    The Beta I have is not a trials bike :-0
    #5
    Norman Foley likes this.
  6. Vintage pro

    Vintage pro Been here awhile

    Joined:
    Sep 26, 2013
    Oddometer:
    290
    Location:
    Stallion Springs , Ca
    Will be starting cutting apart and modifying shock after taking data. 102_0341.JPG
    #6
    MATTY, Norman Foley and Brewtus like this.
  7. lineaway

    lineaway Long timer

    Joined:
    Oct 1, 2011
    Oddometer:
    11,890
    Location:
    nm
    I like it!
    #7
  8. motobene

    motobene Motoing for 49 years Supporter

    Joined:
    Mar 9, 2013
    Oddometer:
    7,402
    Location:
    Wichita Mountains SW Oklahoma
    Nice looking shock. Sounds like you're going to cut it off and remote mount it like you do with your long-travel steel-body Ohlins shocks. Is the shock shaft oversize? Maybe it just looks like it.
    #8
  9. Vintage pro

    Vintage pro Been here awhile

    Joined:
    Sep 26, 2013
    Oddometer:
    290
    Location:
    Stallion Springs , Ca
    The shaft is 5/8" or 15.7mm, body I.D. is 37mm. The valve shims have a 12.5 mm I.D. where the Ohlins have a 12mm. I have most of the machine work done and may be able to test by the end of the week if I don't race Sat. at Glen Helen Raceway.
    #9
    motobene likes this.
  10. Vintage pro

    Vintage pro Been here awhile

    Joined:
    Sep 26, 2013
    Oddometer:
    290
    Location:
    Stallion Springs , Ca
    Getting close to putting together, body shorten 4mm, 4AN fittings installed to shock body hat & remote reservoir in the correct position fully cured. Using a Ohlins bump-cushion and simular valve stack. 102_0345.JPG
    #10
    wheelieman14, Navin, Brewtus and 2 others like this.
  11. Vintage pro

    Vintage pro Been here awhile

    Joined:
    Sep 26, 2013
    Oddometer:
    290
    Location:
    Stallion Springs , Ca
    Shock ready to test. 102_0347.JPG
    #11
    carknocker, Buschog, Zuendapp and 5 others like this.
  12. Vintage pro

    Vintage pro Been here awhile

    Joined:
    Sep 26, 2013
    Oddometer:
    290
    Location:
    Stallion Springs , Ca
    I installed on my son's 2018 Factory with the Factory link to do initial testing to see the differences over the Ohlins I build. May be stiffer in some of the areas I will need to adjust out internally, later I'll install with the STD. EVO link because that link has more leverage at the first 1/3 of the movement.

    Attached Files:

    #12
    GTC, jonnyc21, carknocker and 2 others like this.
  13. Vintage pro

    Vintage pro Been here awhile

    Joined:
    Sep 26, 2013
    Oddometer:
    290
    Location:
    Stallion Springs , Ca
    The shock has been fully tested and I am extremely satisfied with the outcome. Shock was internally changed 4 times to get my approval on performance, little things like reservoir pressure-volume from 210 psi to 180 psi to help keep rear planted against hard slick surfaces for better traction. This was set-up for the STD. EVO link as I don't like progression in the Factory link. I'm still looking for a rider to test in Advanced to Expert level. 102_0359.JPG
    #13
    Brewtus likes this.
  14. NZRalphy

    NZRalphy I'm not half as good as I think I thought I was

    Joined:
    May 14, 2011
    Oddometer:
    1,246
    Location:
    South of the North, NZ
    Your chain is too loose.
    #14
  15. lineaway

    lineaway Long timer

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    Oct 1, 2011
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    11,890
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    nm
    Nope, his bike is in gear.
    #15
    Huzband and jonnyc21 like this.
  16. Vintage pro

    Vintage pro Been here awhile

    Joined:
    Sep 26, 2013
    Oddometer:
    290
    Location:
    Stallion Springs , Ca
    That's right, perched on a 4ft log it needed to be in gear to keep it in place. The question 102_0360.JPG ' what happens when a shock shaft diameter goes from 14mm to 16mm? ( efect on shock )
    #16
  17. jesusgatos

    jesusgatos fishing with dynamite

    Joined:
    Nov 17, 2006
    Oddometer:
    2,742
    Location:
    santa cruz mtns, ca
    Nice work! Turning an old TLR200 into a lightweight trailbike, adapting CRF swingarm, running a Fox evol air shock off a snowmobile, in a single-sided twin shock configuration. Haven't even begun to think about timing, but this is motivating.
    #17
  18. Vintage pro

    Vintage pro Been here awhile

    Joined:
    Sep 26, 2013
    Oddometer:
    290
    Location:
    Stallion Springs , Ca
    Never liked air shocks because of the heating of the air inside the chambers. Send a picture of the shock and the eye to eye length.
    #18
  19. irishgb

    irishgb Adventurer

    Joined:
    Jan 31, 2014
    Oddometer:
    51
    I would like to be considered for the test , I would be able to compare it to my Ohlins long travel "R'' Racing shock that I have been using on my Beta Factory 300 for almost 2 years , with fantastic results !!!! I will provide my impression and compare it to the Ohlins If this is of interest to you please PM me for more details Cheers irishgb
    #19
    Zuendapp likes this.
  20. Vintage pro

    Vintage pro Been here awhile

    Joined:
    Sep 26, 2013
    Oddometer:
    290
    Location:
    Stallion Springs , Ca
    I'm glad you accepted the challenge, will be sending to you in the next two weeks. I'm sure you have some perspective to post here.
    #20