What parts fit your mountain bike? (I won't tell you to just Google it)

What parts fit your mountain bike? (I won't tell you to just Google it)

Mountain bikes have a whole lot of parts, and sometimes it’s not so straightforward finding the ones that fit. People message me all the time asking what parts fit their bike, and so I’d like to think they did a lot of Googling and struck out. What do you even Google search? Is there a better way? Today, we’ll cover the basics!

Yes, this video is way oversimplified and at times, flat out dismissive of details. I know Sram and Shimano 12 speed MTB chains aren’t “perfectly” compatible. Some bikes have freewheels and don’t take cassettes. There was a time where no bike took a thru axle. You could in theory buy a 12 speed HG cassette which would be incompatible with Microspline, which I omitted. Yes, rims have widths too. Older bikes have rim brakes. Valve caps aren’t universal—especially since some riders are going back to shrader. In our original footage I went on forever about wheels and Boost, but we edited it down to a minute because it felt overwhelming and counterproductive. In the end I didn’t feel these caveats would be important to someone who doesn’t have enough experience to Google something. This will hopefully be a simple and welcoming way to get them started out. Thanks for understanding, and feel free to include more info below because the comment section itself is a valuable resource.

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50 Comments

  1. Diablo Canine Tactical on September 1, 2022 at 1:38 am

    good vid. great info, always!!! keep it up. question; why do you always quote amazon instead of hard working americans that also have online stores and shops, a few extra bucks to help support private business instead of the celestiant machine… just saying.



  2. C Lowe on September 1, 2022 at 1:41 am

    Excellent video! I am new to MTB parts, but have been riding off and on for years. I have a 2005 Giant Reign 2 and I am trying to convert to a 1x. I under stand what parts I need, but not sure what to get. MTB parts are very confusing. I am coming from MX and there is much more standardization with MX dirt bike parts.



  3. An Unjust Peace / A Just War on September 1, 2022 at 1:41 am

    Gewgal couldn’t give me a clean answer on the measurrments of ISO 6 bolt standard for disc brake rotors.and hubs.

    I bought some rotors from a China based supplier that sent me disc rotors where the bolts measured 39mm and didnt fit the 44mm hubs.

    The supplier said i was wrong and they were right.

    Geewgal couldn’t provide an answer, giving me results for automotive and aircraft.

    so i went to the Shimano website looking for schematics and long and behold 44mm

    i had to intentionally mispell.geeewgaal because the powers that be kept auto deleting my comment



  4. Victor Randolph on September 1, 2022 at 1:44 am

    Hey Seth, you’re a good guy.



  5. Phil Moore on September 1, 2022 at 1:44 am

    can you use ethanol to bead a tyre, like they do to car tyres in Greenland



  6. RICK on September 1, 2022 at 1:44 am

    You have the best bike channel on YouTube. Thanks for taking care of us🤠👍



  7. StarNightBTW on September 1, 2022 at 1:45 am

    valve caps dont always fit I ordered some and they didnt fit my bike 🙁



  8. Bruce C on September 1, 2022 at 1:46 am

    Great video for beginners. Been Mtn biking for 30 years and it’s a blessing that the internet grew along with biking. Used to be so simple. Now I swear I spend more time on Google than I do working on the bike.



  9. Jake Y on September 1, 2022 at 1:46 am

    I have two questions but it doesn’t matter bc no one will see it anyway but I’ll still ask.
    No. 1 How do u know what size rotor the mount for the brake caliper is on a fork.(if that makes sense.)
    No. 2 how do u know if rims and tires are tubeless ready?



  10. cokesucks on September 1, 2022 at 1:47 am

    Hate to say, but Park Tools is taking people for a ride selling that 20 dollar junk caliper for 75 bucks. I love the content, though.



  11. EVO on September 1, 2022 at 1:48 am

    I’ve had various bikes, pedals come in all kinds of axle threading sizes, so not all pedals will work on all cranks. They can be either 1/2 or 9/16 though in recent years 9/16 is becoming the standard thankfully we landed on something finally, now if other things could do the same..



  12. DDGB on September 1, 2022 at 1:50 am

    Very informative video. Thanks!



  13. Le dush on September 1, 2022 at 1:52 am

    Years ago on a live stream, u literally said to me "oh wait, let me Google that for you" snarky tone, and yet didn’t. You were with alex or brian, i cant remember…. Im not pissed about it, but u have done it. 😁✌



  14. northy Land on September 1, 2022 at 1:52 am

    Bill Nye is a trained mechanical engineer. His science is questionable.



  15. Calix Sebastian on September 1, 2022 at 1:54 am

    1:36 bro, seth looks like my dad. anyways, this helps alot!



  16. Pat on September 1, 2022 at 1:57 am

    good job of not diving into the deep details – really, no sarcasm.



  17. john rus on September 1, 2022 at 1:59 am

    This has been really really helpful as someone who has been out of bike game for over 10 years! Thinks that were normally resurved for only very high end bikes are now main stream or things that didn’t even exist in my day.



  18. Erick on September 1, 2022 at 2:00 am

    Great video man! Just a suggestion but I think that a BB video should be in order. When I started mountain biking that was such a pain in the rear!



  19. John Frahm on September 1, 2022 at 2:00 am

    I thought Oscar answered the DMs. 🙁



  20. megapet777 on September 1, 2022 at 2:01 am

    Unless you have random bike which doesn’t have manufacturer’s website xD



  21. Brett Fluharty on September 1, 2022 at 2:01 am

    Minimum Insertion, like an Indie Punk band. Logo is probably a fist. 3:20



  22. Bruce Warren on September 1, 2022 at 2:01 am

    I had not noticed this video before. It is wonderful and I expect to tell many people about it.



  23. JMAAS on September 1, 2022 at 2:02 am

    this is all good info, and i support folks wanting to learn home mechanic skills, but sooner or later you’ll learn the hard lesson that when in doubt, your local bike shop knows best.



  24. Dan on September 1, 2022 at 2:03 am

    I’ve noticed this phenomenon in TikTok comment sections; where people will ask a simple question that could easily be answered on Google but choose not to and instead wait for someone with the knowledge to have a short conversation with them. I don’t mind much hopefully it’s a sign that the Internet is becoming friendlier



  25. Guy shaashua on September 1, 2022 at 2:04 am

    l love how Seth’s uses his own measurements for critical things like 85 different wheel widths or a full comprehensible video will be 9 days long



  26. J. Mark Andrews on September 1, 2022 at 2:09 am

    This saved me a lot of headaches! Getting ready to source used frames for single-speed mtb and will use your overview to guide my search. Thank you! Mark in Oregon



  27. Carl C Hedemalm on September 1, 2022 at 2:13 am

    6:33 if youre buying a DT Swiss wheel and is wayyyy toooo drowsy to check if its centerlock or 6 bolt, just buy the wheel and a 6 bolt rotor, DT Swiss has a 6 bolt to centerlock adapter thats included per MTB wheel, pretaped for tubeless and a valve stem included too



  28. Zekester xd on September 1, 2022 at 2:13 am

    There is only one catch to the handle part. That’s the "gripshift" shifters. Those take special sized handles iirc



  29. Samuel Kollár on September 1, 2022 at 2:14 am

    the easiest thing you can order are grips or pedals



  30. Me 2 on September 1, 2022 at 2:16 am

    bill shill bye 😷😷🤮🤮



  31. NearEDGE on September 1, 2022 at 2:18 am

    The more or less correct way to measure a handlebar without calipers is to wrap a string around it in a single look then draw a line at one point on the on the loop so that both ends of the string have a mark. The distance between both marks is the circumference of the handlebars. To convert that circumference to diameter you divide by pi.



  32. Corn4Life on September 1, 2022 at 2:20 am

    you know you’re screwed when he says grips fit basically anything, but the grips you ordered were too big 😅



  33. SAnto on September 1, 2022 at 2:20 am

    What if it’s a vintage frame was made when there wasn’t a website



  34. Booped Nose on September 1, 2022 at 2:22 am

    Could you tell me what kind of computer I need to run google…..? I am just kidding just kidding I kid I kid…..



  35. jerryrig on September 1, 2022 at 2:22 am

    Bill Nye is not a science guy he has 0 training in science of any kind, he went to MIT for engineering. He just found a Grift posing as a science guy



  36. kosta aggelatos on September 1, 2022 at 2:23 am

    This is all nice and logic, but what happens if we wont to upgrade some parts on our MTB or even road bike, Lets say a cassette – from a 11-32 teeth to a 11-36 teeth or a 11-40 teeth. Can i do? do i need a different rear delailluer and what kind? So these questions cant be found. Theres 1000 videos on youtube how to change a tyre, 1000 how to change a bottom braket and so on. But not much on up grading our bikes with proper details. Now i live in Greece on an island, i went to the bike shop the ather day and asked for ball bearing for my hubs i said 6.35 mm which is 1/4 inch, he said we dont have free bearnig only sealed — but you can pull them freely [apart] i asked what size are they – so he measered and said to me they are 6.35mm. The ball bearing. Ok i will have 6. Got home and pulled upart one of them got 7 ball bearing from one so i measered them also and i got 6.32 or 6.33mm. Now my bike is not a high end bike worth thousands of euros, but still a wont some professional help. What im trying to say many places around the world we dont have professional bike shops they are just trying to sell you anything they can. So how do we find all information our selfs ???



  37. Leander Berg on September 1, 2022 at 2:23 am

    For Shimano cassettes there is micro spline as well, not just HG. Afaik Shimano 12 speed uses micro spline.



  38. Areola Dan on September 1, 2022 at 2:23 am

    Today in incredible power moves: Seth implies that he is the Bill Nye of mountain biking.



  39. Luciano D'Ambrosio on September 1, 2022 at 2:23 am

    what if i have a 2015 bike and i cant fino any info?



  40. Frogmanpipes on September 1, 2022 at 2:24 am

    My bike has a 1 1/2" head and a 30.9mm seat tube.



  41. Berm Peak Express on September 1, 2022 at 2:25 am

    Yes, this video is way oversimplified and at times, flat out dismissive of details. I know Sram and Shimano 12 speed MTB chains aren’t “perfectly” compatible. Some bikes have freewheels and don’t take cassettes. There was a time where no bike took a thru axle. You could in theory buy a 12 speed HG cassette which would be incompatible with Microspline, which I omitted. Yes, rims have widths too. Older bikes have rim brakes. Valve caps aren’t universal—especially since some riders are going back to shrader. In our original footage I went on forever about wheels and Boost, but we edited it down to a minute because it felt overwhelming and counterproductive. In the end I didn’t feel these caveats would be important to someone who doesn’t have enough experience to Google something. This will hopefully be a simple and welcoming way to get them started out. Thanks for understanding, and feel free to include more info below because the comment section itself is a valuable resource.



  42. Andy North on September 1, 2022 at 2:26 am

    Don’t take any advice from Bill



  43. Bushtrail Freedom on September 1, 2022 at 2:27 am

    Which "cheap" (air) suspension should I choose for my hardtail ? Now it’s 100 mm SunTour spring.



  44. Injest101 on September 1, 2022 at 2:27 am

    Love this video is a total beginner. Things that seem trivial to you are very useful to me



  45. GmailNexus on September 1, 2022 at 2:28 am

    Hack: If you don’t own callipers, use an adjustable wrench in combination with a ruler



  46. Evan Brom on September 1, 2022 at 2:29 am

    Small tip. Find the page / pdf manual for your bike online and save that to your cloud storage / email your self so it will be easy to find long after the brand changes their website.



  47. coquito on September 1, 2022 at 2:29 am

    So, you’re telling me that I can’t put a 11 speed casette on my 1×9 bike?



  48. Jesus Rivera on September 1, 2022 at 2:30 am

    Just bought my first MTB. I’ll be looking. Ack to this video a lot. Thanks.



  49. Paul Schreiber on September 1, 2022 at 2:34 am

    Would love to see a road bike version of this video. Is there another channel you like that has a Seth for road bikes?



  50. P H on September 1, 2022 at 2:36 am

    Good day,
    Can I get a vid on how to customize a mongoose status 2.2 mtb… Can find any sensible vids on mods for it…
    Thanks ✊