Mastadon vs Fox 34+ - seeking real world experiences- Mtbr.com
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  1. #1
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    Mastadon vs Fox 34+ - seeking real world experiences

    Fellow fatty enthusiasts,

    I like to bike and apparently that does not translate to being able to sort through the search options on this site :-/

    Aside from the 150mm / 110mm hub situation... What real world experiences can infiltrate opinion from the trailside? I am basically re-vamping my fatty for winter trail use and want to embrace the shred.

    I've run a 34+ in the past on a Mutz, but at reeeeeaaaaallllyyy cold temps, it would seem to get the stiffs. Is the Mastadon plagued by such unfortunate outcomes?

    I also recently was brought into the 21st century and actualized that Manitou has ties to the homestate of Wisco, so I feel quasi obligated to support that scene.

    As per usual, any and all banter is greatly appreciated.

    Cheers,

  2. #2
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    How cold are you talking?

    And what types of trails are you riding at these temps? How often per week/month/year?

  3. #3
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    Biggest part of winter stiffs is oil selection. Mastodon will be good to go out of the box for cold temps. Fox 34 will need an oil change.

  4. #4
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    #noted.

    @mikesee -
    Basing my experience on last season which was 'average?' in Utah, but wicked cold for weeks on end for a good portion of it. I typically commute 4-6 miles daily on 'groomed rail trail, but not always. - post work go on another 2+ mile romp with dog on the local singletrack with varied snow conditions. Weekend days, escape to other trail clusters to get after the goods. Given the tire clearance on the 34+ I wouldn't ride after big storms b/c I'd sink w/ the 65mm hoops. I typically don't ride much above freezing so ride times are early morn/ later eve. Once the fox got the stiffs (seemingly when it dropped below 20), I swapped to a rigid fork & hammered with an 80mm rim and 4.8" tire. Sky was mostly the limit. But that squish is fun on the singletrack sessions.

    First world battle really... Just trying to enhance that kinesthetic reward on the rig !+)

  5. #5
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    You are also going to max out at 3.8 on 50mm rim on the 34.

  6. #6
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    Quote Originally Posted by Captain_America1976 View Post
    You are also going to max out at 3.8 on 50mm rim on the 34.
    Good to know ;-)
    I ran the fox 34+ for a bit of last season with a 26x4 on a 65mm hoop with sufficient clearance, but perhaps thinking if I am going to sip on some of that 27.5 good -good I won't be pushing 4.0s unless I go way skinnier on the rims...

    All these silly first world mind benders ;-)

  7. #7
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    Mastadon vs Fox 34+ - seeking real world experiences

    Iím using 27.5 x3.8 on 65mm rims with the Fox 34 with no issues at all.
    For winter, I replace the damper oil with Redline 2.5wt or ďlike waterĒ and the bath oil with Mobile 1 or any other very light synthetic. Also a good idea to clean and re-grease the dust seals with Slickoleum.

    I also have a Mastodon and havenít messed with that yet, got it last winter and it seemed to do just fine.

  8. #8
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    Quote Originally Posted by Hobine View Post
    Iím using 27.5 x3.8 on 65mm rims with the Fox 34 with no issues at all.
    For winter, I replace the damper oil with Redline 2.5wt or ďlike waterĒ and the bath oil with Mobile 1 or any other very light synthetic. Also a good idea to clean and re-grease the dust seals with Slickoleum.

    I also have a Mastodon and havenít messed with that yet, got it last winter and it seemed to do just fine.
    I would rethink using that Redline crap!
    It turns to slush at 30F and freezes at 0.
    On left is a bottle left for 8 hours at 0F
    Middle was left at 30F for 8 hours
    Mastadon vs Fox 34+ - seeking real world experiences-redline011_o.jpg

  9. #9
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    Quote Originally Posted by the mayor View Post
    I would rethink using that Redline crap!
    It turns to slush at 30F and freezes at 0.
    On left is a bottle left for 8 hours at 0F
    Middle was left at 30F for 8 hours
    Click image for larger version. 

Name:	redline011_o.jpg 
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    Funny, Iíve seen that picture before. Made me wonder before using it so I threw my bottles in the freezer for a day. They remained completely liquid. Iíve used it now for at least 3 New England winters without any issues.

  10. #10
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    Quote Originally Posted by Hobine View Post
    Funny, Iíve seen that picture before. Made me wonder before using it so I threw my bottles in the freezer for a day. They remained completely liquid. Iíve used it now for at least 3 New England winters without any issues.
    Photo was shot in NH.
    That is the 2.5W if I remember correctly....same happened with the 1W
    Never actually put it in a fork though....there are plenty of fluids that won't gell up.

  11. #11
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    Quote Originally Posted by Captain_America1976 View Post
    You are also going to max out at 3.8 on 50mm rim on the 34.
    26 x 4.0 Vanhelga on 85 mm rims fits on Fox 34 27.5+, though there's barely any clearance on the sides (talking about ~2 mm max).

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