BMX Fork Geometry | EXPLAINED

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  • Опубліковано 22 січ 2025

КОМЕНТАРІ • 125

  • @blawruk
    @blawruk 13 днів тому +1

    GREAT information here! Very thorough and easy to understand. Thanks, Brant! This helps me with my current build; the Mongoose 'Reversal' frame. Trying to decide on a fork for it. 👍😎

  • @straightdooshbags1786
    @straightdooshbags1786 6 років тому +15

    The pictures really help! Great video. Now I understand why a steeper headtube makes a bike easier to nose wheelie.

    • @Brant_Moore
      @Brant_Moore  6 років тому +3

      Perfect! Exactly what I was going for! Thanks for the feedback!!!

  • @allTimeFavorite
    @allTimeFavorite 4 роки тому +3

    The best explanation of trail that I have ever heard.

    • @Brant_Moore
      @Brant_Moore  4 роки тому +1

      Thank you!!!! I put work into understanding it for this one

  • @KE64238
    @KE64238 6 років тому +4

    You would make a great teacher! Thanks for taking your time to make the videos you do, I learn a lot and enjoy them.

    • @Brant_Moore
      @Brant_Moore  6 років тому

      Thank you!! It’s funny because I always said I didn’t want to be a teacher. Now I kind of am

  • @jluo
    @jluo 6 років тому +3

    This was a huge help! Thanks for putting this together. I was trying to figure out how to get the steering response I wanted and this made so much sense!

    • @Brant_Moore
      @Brant_Moore  6 років тому

      Thank you for leaving the feedback! It lets me know I did a good job and that the video is actually useful for people!
      Hope to see you in the comments more often

  • @thedarkenergist
    @thedarkenergist 6 років тому +3

    Brant this was awesome. I love how you dive in and find stuff out that barely anyone knows. Really great video dude!

    • @Brant_Moore
      @Brant_Moore  6 років тому

      Thanks so much!! It was definitely a deep one to get into. I expected it to be easy honestly. Haha

  • @orestfilipov4000
    @orestfilipov4000 4 роки тому +2

    Love all your "diving deep" videos))!!!! Just started a bmx... all these help soooooo much!! Thank you Brant!

    • @Brant_Moore
      @Brant_Moore  4 роки тому

      Always happy to help!!! Thanks for watching

  • @UnitNo.2
    @UnitNo.2 3 роки тому

    Excellent video. I understand a lot of bmx geometry but didn't understand trail enough and now I do.

  • @charlielefever3518
    @charlielefever3518 4 роки тому +1

    Spent an hour trying to figure it out but you explained everything perfectly, thanks lol

    • @Brant_Moore
      @Brant_Moore  4 роки тому

      Always happy to help!! It took me hours and hours and hours just to understand it myself before making this

  • @rumblefishes
    @rumblefishes 6 років тому +3

    Great video, physics and geometry brought together nicely, appreciate the info!

    • @Brant_Moore
      @Brant_Moore  6 років тому

      Thank you for being here to watch it!

  • @ej1_drew
    @ej1_drew 2 роки тому +1

    you're a real source of information, brant! ty 👍

    • @Brant_Moore
      @Brant_Moore  2 роки тому

      Hey thank you! I’m here to help!

  • @nik_evdokimov
    @nik_evdokimov 2 роки тому

    Great explanation and research, really helpful! Thanks for putting together that article with photos and your amazing way of explaining such stuff! 😊

  • @davidrioux5488
    @davidrioux5488 4 роки тому

    Your best video! I had read and enjoyed that same article on Odyssey’s website. I like how you added the circles showing tire travel to the pictures while posting them on your video. You show full merit to the article and then more. Great comprehensive explanation narrative!

  • @alecwaltersmith
    @alecwaltersmith 6 років тому +1

    Thanks a ton man i appreciate this so much. Im newly back to BMX after a six year hiatus and trying to figure out all the crazy stuff about bikes. I follow you on insta and it brought me hear. To smart I'm sure you will have this channel blown up . Thanks man

    • @Brant_Moore
      @Brant_Moore  6 років тому

      Thanks a lot for the kind words man! Really glad this one helped you out and thanks for following on Instagram!

  • @jowiislizzant1384
    @jowiislizzant1384 3 роки тому +1

    Thanks for the always informative and well explained videos man. I subbed!

    • @Brant_Moore
      @Brant_Moore  3 роки тому +1

      Heyyy, thank you!! I do my best!

  • @FalseInformation
    @FalseInformation 4 роки тому +1

    This was genius! I was looking for a new fork and now I know I want that offset, thanks man!

    • @Brant_Moore
      @Brant_Moore  4 роки тому

      Always happy to help!! Hopefully it helps enough to earn your subscription

    • @FalseInformation
      @FalseInformation 4 роки тому +1

      @Brant_Moore God damn right, you should have more subscribers already compared to some others who put up pure crap content and have loads.

    • @Brant_Moore
      @Brant_Moore  4 роки тому +1

      Thanks man! I try my best and maybe one day things will get there

  • @felixbilducia4956
    @felixbilducia4956 11 місяців тому

    What are the holes on the bottom of the forks for by where you put the nut on the front tire?????

  • @mikedevlinbmx7208
    @mikedevlinbmx7208 4 роки тому +1

    Very cool man. I found my ideal front end is a 75.25 ht angle with a 32mm offset fork. Keeps it responsive but stable.

  • @BlackTownie999
    @BlackTownie999 2 роки тому

    This helped me figure out that my forks are most likely bent and I need new ones, my bike is for trails...With a little street, sometimes I got pegs on it and I have a bash guard.

  • @CrisKG125
    @CrisKG125 6 років тому +1

    Great video, really interesting. BMX geometry is crazy.

    • @Brant_Moore
      @Brant_Moore  6 років тому +1

      It really is crazy. I never would’ve imagined.
      Thanks for watching man!

  • @deadbenttv
    @deadbenttv 2 роки тому

    why am I seeing a lot of street bikes with 30mm fork offset is that a happy medium for street park and dirt? such as the subrosa letum

  • @RideFlyBikes1025
    @RideFlyBikes1025 6 років тому +1

    Very insightful! Great job man!!

    • @Brant_Moore
      @Brant_Moore  6 років тому +1

      Thanks man!! This one was definitely more effort than most!

    • @RideFlyBikes1025
      @RideFlyBikes1025 6 років тому +1

      @@Brant_Moore oh yeah man! I made a frame for my senior project way back when and learning all the angles and everything was insane.

    • @Brant_Moore
      @Brant_Moore  6 років тому

      Woah you did? Thats awesome!!

  • @CianaRo169
    @CianaRo169 4 роки тому +1

    You really help me in your videos

    • @Brant_Moore
      @Brant_Moore  4 роки тому +1

      That’s so great to hear!! Thank you for being here and letting me know

  • @mathiasmobech-hanssen3841
    @mathiasmobech-hanssen3841 3 роки тому +1

    would a steep ht angle with long fork offset, and mellow ht angle with short fork offset act differently? or does it just kinda even out and feel about the same?

    • @Brant_Moore
      @Brant_Moore  3 роки тому

      In theory it could feel about the same but then there's the aspect of turning that I'm not really sure about

  • @robertburriss4130
    @robertburriss4130 2 роки тому

    @Brant_Moore I have a Kink Whip and I just ordered a set of the F-25s cause I ride street with brakes and a little bit of park. What size stem would be good for me and could you recommend one? Please and thank you

  • @eddiebmxindia
    @eddiebmxindia 6 років тому +1

    Please make a video about differences in bmx like street and fork and vert

    • @Brant_Moore
      @Brant_Moore  6 років тому +1

      Hmmmm that could be an idea

  • @j.parrish
    @j.parrish 6 років тому +3

    Damn, dude. You spent some time studying for this one! 😲

    • @Brant_Moore
      @Brant_Moore  6 років тому +2

      Had to do it! It was so interesting and confusing that I had to dig until I understood it, even if I wasn’t going to end up making a video about it

    • @j.parrish
      @j.parrish 6 років тому +1

      @@Brant_Moore Glad you did! 👍

    • @Brant_Moore
      @Brant_Moore  6 років тому +1

      Thank you man!

    • @j.parrish
      @j.parrish 6 років тому

      @@Brant_Moore Ur welcome.

  • @tylerdurden1790
    @tylerdurden1790 6 років тому +1

    Thanks dude. Love your videos.

    • @Brant_Moore
      @Brant_Moore  6 років тому

      Thank you for being here to watch them!

  • @mrbuffchunky9459
    @mrbuffchunky9459 2 роки тому

    Very helpful, thank you!

  • @lalshortshot2051
    @lalshortshot2051 2 роки тому

    I have a 21 top tube and its a bit to bog for me but i love the frame would using a r15 be better for me?

    • @Brant_Moore
      @Brant_Moore  2 роки тому

      The fork will shorten your wheel base but won’t make the bars feel closer

    • @lalshortshot2051
      @lalshortshot2051 2 роки тому

      @@Brant_Moore will that result in easier hops?

  • @mchamema
    @mchamema 4 роки тому

    Good video man. Great job.

  • @trailwomanrc
    @trailwomanrc 3 роки тому

    The rake, trail, and offset destabilizes rotation for flatland tricks. It would nice to find a geometry where flatland can be done with a bike still somewhat capable of other styles of riding.

  • @trenton_ws6212
    @trenton_ws6212 6 років тому +1

    Do rear hubs like unsealed and sealed bmx hubs. And would it be possible to keep the hub shell from the front hub and put in sealed bearings and a new axle?

    • @Brant_Moore
      @Brant_Moore  6 років тому +1

      I would highly doubt it would work without some heavy modification of the hub shell.
      For the time, effort, and money involved, it would probably be more worth it to buy even the cheapest sealed hub you can find.

    • @trenton_ws6212
      @trenton_ws6212 6 років тому +1

      @@Brant_Moore thats what i was thinking because i looked at a hub i had apart and its just like any unsealed bike it has cups to hold the balls so it wouldnt fit sealed bearings but i wanted to see if there was any cheap way to do it thanks

    • @trenton_ws6212
      @trenton_ws6212 6 років тому +1

      @@Brant_Moore and btw i love your intro music

    • @Brant_Moore
      @Brant_Moore  6 років тому +1

      No problem man, happy to help and thank you!
      Thanks for watching as well!

    • @mikejoned7148
      @mikejoned7148 6 років тому +1

      This is the harsh reality of box you get what you pay for instead of trying to make something into something that was not made to be that way. I am a old man in a young men's sport but have seen a lot of changes in bmx over the 2 decades I have been in this bmx life. Get this Huffy bikes made a strong come back and everyone wanted one the TL88 Todd Lyons signature frame. Unfortunately most of you don't have any clue who this bmx savage is. Bmx in the late 90s early 2000. I feel was the best time and it was lit. Dan's competition 199$ got you frame and FORKS didn't matter the company. Getting a S in m homes with pitchforks for $200 and it actually cost more if you wanted the frame painted it was more or less Chrome all the time some people in Hamel know what I'm talking about but I don't know guys all you young uns the other future BMX don't let us old saltdogs down

  • @maxjohnson6701
    @maxjohnson6701 4 роки тому

    Thankfully I found this video I order snafu forks that have 20mm off set and then realized I was running 30mm offset before and was worried they wouldn’t fit but this video explained it and not I realize what offset it.

  • @jaysenjohnivanturner1972
    @jaysenjohnivanturner1972 Рік тому

    Great Job Boss.

  • @lorenzoscott2648
    @lorenzoscott2648 4 роки тому

    Okay I need your help I’m buying the 2021 sunday Aaron Ross complete but I want a black fork for it what fork do I buy

    • @Brant_Moore
      @Brant_Moore  4 роки тому

      Another Sunday or Odyssey fork! Make sure they have a lifetime warranty. Both come in black

    • @lorenzoscott2648
      @lorenzoscott2648 4 роки тому

      @Brant_Moore thanks

  • @dancetrance101
    @dancetrance101 3 роки тому

    How do you think this effects fakies? I feel like I notice instability the most during fast fakies and fakie carves. Do you think trail still stabilizes and self straightens during a fakie or does it flip and do the opposite because the motion is backwards? If it does the opposite maybe a steep fork would give a smoother fakie with a added benefit of a tighter carve. Thoughts?

    • @Brant_Moore
      @Brant_Moore  3 роки тому +1

      Hmmmm, im sure it does but my brain cant compute how right now. haha I would think mellow would always be more controlled but not 100% sure

  • @420bandit
    @420bandit 7 місяців тому

    As a mountain biker, i never wouldve thought of taking my bmx on the trail lol. Just started givin bmx a try. 35year old, wish i started as a kid.

  • @davidvanvliet193
    @davidvanvliet193 6 років тому +1

    Awesome info! Thanks man!

    • @Brant_Moore
      @Brant_Moore  6 років тому +1

      Thank you for being here to watch it!!

  • @lucianonotarfrancesco4443
    @lucianonotarfrancesco4443 4 роки тому +1

    Very interesting. I’m thinking of getting a WTP Reason 2021, and I was wondering if its apparently extreme geometry would make it a bad choice for a beginner, what do you think? It has a 76 degrees HTA and 15mm fork offset.

    • @Brant_Moore
      @Brant_Moore  4 роки тому +3

      When you’re first learning you haven’t developed a sense of what you like yet or what tricks you’ll do, so most likely you’ll just ride it no problem and learn just as well as on any other geometry.
      Then once you start to learn some tricks and get better you’ll slowly start to figure out what geometry you like and that’s when you start changing things or even realize that you want to keep it the same

    • @HighVybeTribe
      @HighVybeTribe 2 роки тому

      @@Brant_Moore agreed 👍

  • @dustinrouse4130
    @dustinrouse4130 6 років тому +1

    Great Video

    • @Brant_Moore
      @Brant_Moore  6 років тому +1

      Thank you! I spent literally all day on it. haha

  • @gkillgkill1908
    @gkillgkill1908 6 років тому +1

    Thanks this really helped

  • @559rigogonzalez
    @559rigogonzalez 6 років тому +1

    wow very good video

    • @Brant_Moore
      @Brant_Moore  6 років тому

      Thank you! A lot of time and thought went into this one

  • @mcskillby
    @mcskillby 6 років тому +3

    Thank's Brant, I always thought it was the angle of my bars that caused this effect. Now I know why each of my bikes handle differently from each other.

    • @Brant_Moore
      @Brant_Moore  6 років тому +1

      Happy to help any time I can! Thanks for being here to watch!

  • @papi_dan
    @papi_dan Рік тому +1

    This is pretty much a fool-proof guide to understanding the relation between the headtube angle and the fork's offset. If someone doesn't get it, it's because they don't want to get it. Call me weird but my headtube at 76.5° and my fork being an odyssey r15 makes for a beautifully twitchy and squirrely steer

    • @Brant_Moore
      @Brant_Moore  Рік тому

      Thank you man!! I did my absolute best with this one and trying to explain things in an understandable way. The whole concept and relationship between the offset and trail is inherently confusing to the point that I wasn’t sure if I even understood it. Haha

  • @z3rodarkness523
    @z3rodarkness523 5 років тому

    Great vid new sub

  • @jakobw135
    @jakobw135 4 роки тому +3

    You just CONTRADICTED (at the end), what the evidence supposedly shows: MORE offset - LESS trail = twitchier ride. LESS offset-MORE trail = stable ride. Make up your mind! :-)

  • @Sgt.MajorDani
    @Sgt.MajorDani 15 днів тому

    I like doing faceplants, so I went from a 30mm offset and 75° headtube on a 20,5" frame to a 74.75° Headtube and 15mm offset on 20.7" frame on my new bike.. Not even ready yet, still building, but i presume i will notice some differences 🤣
    I believe It might remind me more of my Wildcat Mini bmx than my standard size one when doing nose manuals or riding faster than walking speed 🤭

  • @mikejoned7148
    @mikejoned7148 6 років тому +1

    This is something I have always had a problem with. 22 years of riding and getting the front wheel and stem all lined up straight. I run PITCHFORKS and a custom front wheel Relic hub and laced to a envy rim and Profile stem and Relic bars. I was told by a very good source that no FORKS are dead on point there is always a little off by like maybe 2 hairs

    • @Brant_Moore
      @Brant_Moore  6 років тому

      In researching for this video too I found out that head tube angles on frames aren't every perfect either and vary a degree one way or the other as well

    • @mikejoned7148
      @mikejoned7148 6 років тому +1

      @@Brant_Moore thanks for the time 🚵

    • @Brant_Moore
      @Brant_Moore  6 років тому

      Anytime man! Always here to help and chat about bmx

  • @Ewat69
    @Ewat69 10 місяців тому

    should have gotten into how your bars come around faster with less rake and how you can spin 360 faster too

    • @Ewat69
      @Ewat69 10 місяців тому

      shorter wheelbase = faster rotation because everything is more centralized

  • @prspider2003
    @prspider2003 3 роки тому

    I actually understood that 😱

  • @giacobmx
    @giacobmx 4 місяці тому

    i went from a 35mm offset fork to a R32 fork, and i drastically felt the difference, it was way more twitchy (then i switched from a 20.8 frame to a 21 so this balanced the things). Still, after seeing this video i don't understand well why on the internet everyone says that in mountain bikes a longer offset is less stable.......

    • @x88868
      @x88868 Місяць тому

      What brand has a 35mm offset?

  • @richardmurillo7795
    @richardmurillo7795 3 роки тому

    Makes sense

  • @_0v.r
    @_0v.r 6 років тому

    There's a flaw with this. This is all based on the bike staying still, and perpendicular to the ground, and doesn't take leaning into a turn into consideration. If you ride in a straight line, and turn your bars 45°, the lack of trail on short offset/steep ha is more likely to force your bars to 90°, sending you otb. You almost always lean into a turn. The best way to really feel that difference is when trying to fakie slider. With more trail your bike will want to turn, less trail the front wheel is more likely to slide.

  • @Booyuaaka
    @Booyuaaka 3 роки тому

    Thank you I just bent my drop outs and need new forks

  • @COBALT_iLLADELPH
    @COBALT_iLLADELPH 5 років тому

    Got pitchforks on my bike

  • @RonnieRawdawg
    @RonnieRawdawg 6 років тому +3

    75.75 HT + 15mm forks and i mostly ride street but i also ride trails its perfectly stable, not crazy at all. people over exaggerate

    • @Brant_Moore
      @Brant_Moore  6 років тому +1

      Everyone is different. Stable in the trails to you, might be highly reactive and twitchy to someone else.

  • @pauljames1978
    @pauljames1978 6 років тому +1

    All depends what you ride the most if you ride dirt all the time get some R32 forks if your more of a ramp guy R25 forks or some primo or animal or fiend Process IC forks for street riding \m/

    • @mikejoned7148
      @mikejoned7148 6 років тому

      FBM CB4 ARE THE BEST ALONG SIDE WITH THE PITCHFORKS AND STANDARD. ANYTHING ELSE IF YOU RIDE HARD SNAPPING FORKS IS NO FUN

    • @pauljames1978
      @pauljames1978 6 років тому

      @@mikejoned7148 I had some pitchforks back in 1999 and broke them never had the money to get fbm parts and standard bykes forks that why i sed odyssey fork they have lifetime warranty on breaking and bending \m/

    • @mikejoned7148
      @mikejoned7148 6 років тому

      Fair enough

  • @Chefkhev
    @Chefkhev 3 роки тому

    #Thankyou

  • @robertkrikava1
    @robertkrikava1 5 років тому

    SCIENCE!!! Kangaroos can not jump backwards. Doesn't really any barring to this, but atleast you can say ya learned something else.

  • @jacklystackly
    @jacklystackly 4 роки тому

    Trying to explain forks: well yes, but actually no

    • @Brant_Moore
      @Brant_Moore  4 роки тому

      Haha then make a video and explain it better. This was done with days of research to make sure it was correct.