Upgrading A Cheap Mountain Bike With The Cheapest Parts On Amazon

Upgrading A Cheap Mountain Bike With The Cheapest Parts On Amazon

I’m using the cheapest mountain bike parts from amazon to upgrade this Diamondback Overdrive. Let’s talk about it.

Cheap mountain bikes and mountain bike upgrades

Does that mean Making a trip to Walmart? Amazon, or Facebook Marketplace?

Lets talk about it. And break down some of the best options currently

If you recently acquired a mountain bike craving you might be interested in a high value low budget bike but soon find out there are only so many options available. Buying new in shop, hopefully a bike shop, but more than likely a walmart. Buying new online, again more than likely walmart but amazon and other retailers like bikesdirect are an option. Or the last option… buying used. The best option is facebook marketplace.

Out of the 3 the best value for money will go to buying used on Facebook marketplace. And really, this video isn’t about where to buy.. it’s about how to cheaply upgrade your mountian bike from parts available on Amazon… and aliexpress if you’re willing to wait.

At the time of this video I was able to upgrade all the important parts of any cheap mountain bike upgrade build for under $100. Including Seatpost, Seat, Grips, Chain ring, Shifter, chain and brake lever. These part’s will drop weight and make a more dependable, higher performing bike. These parts were the cheapest on Amazon that I could find available in the U.S. If you are international these prices may vary.

The cost analysis of this build is as follows.

Diamondback $100

Grips $5
Seat $14
Seatpost $15
Chainring $10
Shifter $15
Brake Lever $5
Chain $15

SUB Total : $179
Time/Labor 10 hours @ $10 per hour: $100
Total: $279

Just a note: The Overdrive 27.5 sells new for around $500 if you can find it. With a used build like this you’ll likely encounter imperfections to the bike of interest. For example, this bike had pretty bad paint chipping on the top tube that would potentially turn a buyer off and most notably the wheels on this particular diamondback were a bit out of true but still workable and the front hub had some noise. None of these issues are going to stop you from enjoying the trail but they’ll likely be parts you would upgrade as your riding progressed.

Now that you have a good Idea of the cost.. Let’s jump over and see what the bike looked like when I first picked it up!

What do you think of this transformation?

Although they are simple upgrades, the bike looks much better. And more importantly will perform better.

Let’s take a closer look at the parts and break it down.

We are still rocking the stock 8 speed Shimano Altus in the back. Note that this is not a clutch derailleur so modification may be necessary to tension the chain for heavier trail riding.

Things to look for in a used mountain bike are a crank set that already has removable chain rings bolts this way you are saving money by just adding a narrow wide chainring. Rather than needing to replace the entire crankset.

The stock pedals are something you may want to upgrade but these seemed to have life left in them and for a more urban MTB they will do the trick.

Like I spoke about earlier, the wheels aren’t the best but they are workable. Arisun Mount Bona tires…. Never heard of them. But they’ll roll.

And here we have the cheapest seat and seatpost combo on Amazon. The seat has the general outline of a road or mtb saddle but the proportions are just slightly bigger than what you’d expect. Again, this will work for urban cruising or maybe your preference is a more cushy seat. Either way… $15 is $15.

And probably the best value here are these lock on grips for $5. For any bike out there adding a fresh set of grips will seriously change the feel of the bike.

Overall this mountain bike build is a great option for anyone new into MTB or wanting to learn bike mechanics. I don’t think this is the best option if you’re looking to shred the trails without issue though… so If that is something you are looking to do check out my full suspension mtb build I am currently working on to get an idea of pricing for something more high end but still on a budget. This style build is perfect for urban riding, with some light trail use. But the most important part here is the platform you choose. Something like this highly upgradable diamondback overdrive is perfect because you’ll be able to make it a serious performer if you put some more money into it.

But that’s it for this build.

Make sure to Like and Subscribe if you enjoyed the video.

I post every week and it’s a huge help from viewers like you to support grassroots programming like this.

Shaka Mahalo yall!


  1. Sim Dude on August 23, 2022 at 12:52 am

    Good job ! Saddle is ok but on the ugly side tho imo. How does the grip feel?

  2. ns671fr on August 23, 2022 at 12:55 am

    They really took 10hrs for those parts? Find a new bike shop lol

  3. HalfWaffles on August 23, 2022 at 12:57 am

    Eh… 50/50. I mean, the paint chips doesn’t really matter if you just want to shred, but components wise, I honestly think you would’ve gotten a better/newer bike if you were to buy a new one in a local bike shop. For example, the Shifters, Cables, The frame, the wheels, the spokes. It really depends on what you want to do, but I think you did pretty good on giving this bike a chance to get ridden again and a chance to breathe into trails!

  4. Tiger mu on August 23, 2022 at 12:59 am

    I got my bike for 25$ at goodwill. And when I check the real price it was around 200

  5. Budget_MTB on August 23, 2022 at 1:00 am

    The rear wheel is wherlmaster one off of amazon I just got for my bike

  6. Lobo Cira on August 23, 2022 at 1:03 am

    i have the 2013 Overdrive Sport with hydraulic brakes. Everything is stock and the rear derailleur broke (chain came off, got tangled in ripped it clean off). I have two options, leave the front as is and replace rear set (cassette too) or go with a decent upgrade to a 1 x 11 gear set. Any thoughts? I’m a 2-3 times per month trail rider with limited budget. I’d love your opinion on what I should do with gears but leaning to 1x gear set so I don’t have to mess with the front. Hoping to do what I can for about 200. Thanks!

  7. Danny Smith on August 23, 2022 at 1:05 am

    Awesome video!

  8. Account error on August 23, 2022 at 1:10 am

    If my bike was worth £10 for every hour I put in it it would be worth well over a grand or 2

  9. Salty Mons on August 23, 2022 at 1:11 am

    That’s a hella expensive for the labor. Demn… In our country it would only cost around 10$-15$

  10. Timothy on August 23, 2022 at 1:14 am

    Nice job on the small upgrade to make the bike rideable. Like you said if someone wanted to make it trail worthy they can always make their own upgrades. Will say you got a good deal for decent bike.

  11. MTB Budget Builds on August 23, 2022 at 1:14 am

    You explained this well, I’m also into the budget MTB side of things from big box stores and amazon and even wish for smaller things. Keep up the videos and please check mine out if you enjoy budget content

  12. Andre 2020 on August 23, 2022 at 1:14 am

    Any good shifters under $15??

  13. Andrew Singleton on August 23, 2022 at 1:14 am

    See I have kinda considered doing this. Pick up a cheap bike and put parts on as needed to make it rideable and sellable second hand.

    I’m just concerned I am making a mistake and I sell a lemon.

  14. GrizzlyRising News, Politics and opinion. on August 23, 2022 at 1:16 am

    Making old broken things, new and usable again is one of my main mantra’s.

  15. Bruce Chastain on August 23, 2022 at 1:18 am

    Great video. I think you nailed it with urban mtb riding. Reminds me of the first trek that Seths bike hacks had.

  16. Jorge Gonsalez on August 23, 2022 at 1:19 am

    I bought used for 300 on fb. upgraded with 1200.00 from Amazon parts I didn’t went for the cheapest parts so you can lower that number but I love my bike after everything I did to it. Specialized pitch comp 27.5.

  17. kirk stevenson on August 23, 2022 at 1:20 am

    Enjoyed this video. Some good ideas to take forward. Said before, I like what you’re doing, and how you go about it
    As long as you keep enjoying, keep going! 🙂

  18. Austin Daly on August 23, 2022 at 1:22 am

    10 hours ??Doing what ?

  19. shanmugam shankar on August 23, 2022 at 1:32 am

    I don’t have any cycle m…

  20. Your Own Adventure on August 23, 2022 at 1:32 am

    Bold and brash? Or Belongs in the trash??

  21. MechanicalDave79 on August 23, 2022 at 1:39 am

    Great video I bought this bike 3 years ago and wanted to do some upgrades and was totally looking at Amazon for parts

  22. J D on August 23, 2022 at 1:40 am

    Is a fork upgrade a necessary upgrade?

  23. Chris Horbatt on August 23, 2022 at 1:41 am

    Good tips for low cost upgrades

  24. Yadi Everything on August 23, 2022 at 1:43 am

    Cool video

  25. Tyler Willson on August 23, 2022 at 1:47 am

    Ive always wanted to try something like this lol. Good vid!