3 Rapid-Fire Mountain Bike Tuneups

If you've been following along, you've seen these bikes before. Now, they're back in the shop for some much-needed tuneups!

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Music in this video is from

[aaronthewhiz]

We need a compilation of Seth distributing sealant by wildly bouncing the wheel around

[Durwood]

As someone who rode a Trek Marlin 8 for two years and broke the front and rear axles at least once each, I can tell exactly how it happens: riding it like a trail bike. Marlins are cross country bikes and are not intended for chunky technical trails, and certainly not big drops and jumps. I'm riding a Roscoe 9 now with much beefier thru axles, and I couldn't be happier.

[Vastafari]

Your bike repair videos are among the best content on the entire Internet. You're a fantastic educator!

[TroySmith-wxmq]

I recently became a bike mechanic at a local non-profit bike shop, I had no formal schooling in bike repair and my education on the subject is almost entirely made up of what I've learned watching all your videos for the past several years. Thank you so much for everything I've learned from you Seth!

[koekum]

I had this same problem with computer hardware. After fixing someone's computer or even giving them one, you become the owner of all their problems.

[The_Iainternet]

I’d love to see a video where you get the kids you gave the bikes to along to service them and teach them how to look after their bikes!

[Johnmichael]

Rapid fire cmon I want an hour long video

[doorot]

Seth. Just wanted to say I have no mountain biking background, but I randomly came across your channel one night. After binge watching both of your channels for a couple of weeks, I have bought a bike to learn and get into the hobby. Just wanted to say thank you! Highly enjoy it.

[iamjessieray]

Seth, I just want to let you know that I genuinely learn so much from your bike repair videos. I am still very much a beginner but I am learning to wrench on my own bike which has already saved me quite a bit of money. It isn't till you start working on them that you realize just how simple bikes are, especially since mine don't have any hydraulic components!

[yourchillgamer]

I love how Seth explains how to replace, repair, and to see how theres a problem on the bike, PLEASE do more! You have saved me hundreds of dollars worth of repairs with your videos!!

[speedsk]

I love all of the Berm channels, Seth. I'm gonna be doing my first big ride in a very long time in Chequamegon-Nicolet National Forest in Wisconsin all because this channel inspired me to do it.

[littleshopofrandom]

See this is the problem giving out bikes, you become the free repair man :P

[andybidlingmaier]

" This time these bikes are leaving my house for good. " FAMOUS LAST WORDS. 🤣🤣

[NonLegitNation]

YT is your best friend when it comes to learning how to repair and maintain your bike. I firmly believe a person shouldn't own a bike unless they know some basic maintenance. I don't attest to know how to do everything but I would say I can repair and maintain 95% of the problems on a bike and the place I learned to do that stuff is through years of watching YT videos. I'm sure plenty of people disagree with me, but those people are probably the ones who don't know how to repair and maintain their bikes. I work at a retail store and assemble bikes and a couple months ago we had someone return a bike because they got a flat tire. If you can't fix a flat tire then I'm sorry, you shouldn't be riding/owning a bike.

[madtownangler]

I remember once when I bent my seatpost on my BMX bike my dad took a metal rod and pounded it into the seatpost tube to the right height and I put my seat back on. This was about 1990 or so. We also used a crescent wrench as a spoke tool.😊

[jonasboone]

I'm a full time mechanic, thinking these would be the last video's i'm wanting to watch after a days work. Yet, you always make me laugh (in a good way!). Also, use a magnet for them lil ball bearings. :D

[adamspivey]

Love the video and love what you do for bike people. You are indeed a treasure to your community.

[NoodlesSoucy]

Your videos have helped me so much in my personal bike repairs and those in the local community over the past few years, just wanted to say thanks!

[djsercy]

The Marlin 4 can be swapped from a freewheel to a cassette (I converted mine from a 3×7 to a 1×9), but for most people, doing that isn't worth the effort considering how you'd have to do a full drive train and brake swap in the process (the stock shifters and brakes are integrated into each other) and you'd need a new rear wheel. I did it with mine to see if it was possible and bike rides great

[theboysneverstop]

I love how Seth is already amazing at bouncing those wheels around the shop