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All Things Bikes and Tacos! (...and Now Vans)

Discussion in 'Sports, Hobbies & Interests' started by Gunshot-6A, Aug 10, 2016.

  1. Aug 17, 2022 at 4:30 AM
    backcountryj

    backcountryj Athlete - per @ginseng27 Google definition

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    Probably a dumb question, but I’ll ask.

    What are the drawbacks/limitations to running a 29er fork on a 27.5 frame with 27.5 wheels?
    And same question the other way…can you run a 27.5 fork on a 29er frame with 29 wheels?

    Is one more doable than the other? My small brain makes me think the 29er fork would be the more ‘universal’ of the two and could theoretically be used on either wheel size/frame.
     
  2. Aug 17, 2022 at 4:43 AM
    Dr. Doom Says

    Dr. Doom Says Well-Known Member

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    It mostly comes down to axle to crown distances and how it will affect the front end. It will have an effect on the geometry - head angle, stack/reach, bb height and wheelbase.

    Edit: To answer your question I have run a 29er fork on 27.5 bikes - visibly there is a larger gap between fork arch and tire. I dont think most 27.5 forks will clear a 29er wheel/tire.
     
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  3. Aug 17, 2022 at 5:06 AM
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    29’er fork on a 27.5 frame may result in a shorter travel fork also. My bike, in the size I bought is available as a 27.5 with a 150mm travel fork or a 29’r with a 140mm travel fork. You could obviously get a 29’r fork with 150mm travel but, as mentioned above, just messes with geometry.
     
  4. Aug 17, 2022 at 5:22 AM
    backcountryj

    backcountryj Athlete - per @ginseng27 Google definition

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    Thanks. I half speculated that a 29er fork would be the 'goldilocks' if one were to exist. That is a gross overgeneralization, and I acknowledge that individual fork/frame specs can make that assumption null and void.

    Admittedly there will be some change in geo when running an out of spec fork. My thinking is that most commoners won't be able to perceive minor affects on all the things. Similar to fork offset. Sure a frame might be designed around a given number, but I highly doubt any of us that don't strap on a number plate on the regular would be able to tell the difference in a blind test. Not unless the test is comparing say 37mm vs 51mm offset. I could see that spread being more tangible for a 'seasoned' Joey.
     
  5. Aug 17, 2022 at 5:40 AM
    Dr. Doom Says

    Dr. Doom Says Well-Known Member

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    Yeah, the key thing would be to keep an eye on A2C measurements between wheel sizes. If you are trying to find a goldilocks fork it will help when looking to keep things closest to the target. I think there is a fair difference between RS and Fox A2C dimensions of the same size, so its just another thing to keep an eye on.
     
    backcountryj likes this.
  6. Aug 17, 2022 at 8:01 AM
    ginseng27

    ginseng27 who knows?

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    not enough.
    on some frames, it is also impossible to put a 29er fork on the frame. the clearances aren'tq uite there. not only for axle to crown and crown to head tube but also the top of the fork to teh downtube when you turn. Keep some of that in mind. :) Most 27.5 frames shoudl be able to accept the 29er fork but there are a few exceptions to that rule. Especially on the smaller bikes.
     
    backcountryj likes this.
  7. Aug 17, 2022 at 8:47 AM
    SenatorBlutarsky

    SenatorBlutarsky Well-Known Member

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    Phil Wood all the way for bearing stuff!!!
     
    flash5twelve, abacall and ginseng27 like this.
  8. Aug 17, 2022 at 8:56 AM
    ginseng27

    ginseng27 who knows?

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    not enough.
    +1 for phil wood.
     
  9. Aug 17, 2022 at 9:50 AM
    mtskibum16

    mtskibum16 Well-Known Member

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    Ok what is active junky? A quick look at their site looks like it's giving cash back for purchases but how and why? What are they making money on if it's a free signup? Selling data, ads?
     
  10. Aug 17, 2022 at 9:53 AM
    whitedlite

    whitedlite Well-Known Member

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    The company you purchase from pays them. Think of it as head hunting or being a lead man. They create incentive to purchase from them and are rewarded for it.
     
    Last edited: Aug 17, 2022
    backcountryj and 113tac like this.
  11. Aug 17, 2022 at 11:19 AM
    geoyota760

    geoyota760 Allergic to pavement

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    5.29 Nitros Bilstein ICON Kansei BFG
    FS…one ride XT platforms 8140’s in ML size. $80 shipped CONUS. Trail rash from pedal strikes pictured. One left. One right.

    682C1D75-746F-4C2B-9EB5-325BB1F77FD4.jpg

    8FB998B8-791D-4A92-A368-9B2EB6D58766.jpg

    BC58CACE-1B7C-42FA-844A-2253F9AC9DB6.jpg

    PayPal or Venmo accepted.
     
    backcountryj likes this.
  12. Aug 17, 2022 at 11:27 AM
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    Jeez, those look mint compared to my pedals. My 'pedal strikes' appear to be much more frequent and severe :anonymous:
     
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  13. Aug 17, 2022 at 11:40 AM
    PhoS

    PhoS Who the f you callin a noodle?

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    no MSG
    Same, throw away plastic one-ups for the win.
     
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  14. Aug 17, 2022 at 11:54 AM
    DingleTower

    DingleTower My truck is like yer truck

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    My road pedals have more trail rash than those. :p
     
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  15. Aug 17, 2022 at 1:13 PM
    whitedlite

    whitedlite Well-Known Member

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    Pugga and 113tac like this.
  16. Aug 18, 2022 at 9:01 AM
    SenatorBlutarsky

    SenatorBlutarsky Well-Known Member

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    He did say "one ride"
     
  17. Aug 18, 2022 at 9:33 AM
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    Oh, I got that part loud and clear... Mine looked far worse after their maiden voyage. My bike seems to have a relatively low BB height and longer cranks relative to the frame size so I guess I catch my pedals and cranks a lot. For me, it's clearly all a geometry issue and has nothing to do with poor line choice :anonymous:
     
    jubei, RockiesTaco, s4nsc and 3 others like this.
  18. Aug 18, 2022 at 2:28 PM
    backcountryj

    backcountryj Athlete - per @ginseng27 Google definition

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    Not as exciting as NBD, but new tool day is still a happy day. One day closer to getting the rig ridable again…maybe bike refresh day :notsure:

    28329402-22B8-4461-B81F-8B29C2E4E438.jpg
     
    mrtonyd, geoyota760, abacall and 12 others like this.
  19. Aug 18, 2022 at 3:35 PM
    113tac

    113tac Well-Known Member

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    Mostly Stock for now, 265 75 16 Falken AT3W, Tinted fronts...
    Do the i9 tools work with a regular press? That one you have looks massive
     
  20. Aug 18, 2022 at 4:26 PM
    backcountryj

    backcountryj Athlete - per @ginseng27 Google definition

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    I honestly don’t know what would be a normal press haha. The one in the pic is just an Amazon cheapo headset/BB press I ordered for the poops and giggles. It’s def way too girthy for the I9 drifts, but the headset ones that came with it are where I think the value lies.

    I’ve got a redneck garage press set up that will work for the F/R hubs, but is still too big for the freehub drifts. I’ll either install utilizing the ole rubber mallet tap with caution, or I’ll order this one.

    Wheels Manufacturing Economy Bearing Press https://www.amazon.com/dp/B004YWGMXY

    5D654DE1-AF92-43AE-B626-0F6233D99E49.jpg
     
    113tac, Dr. Doom Says and Pugga like this.

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