Are 4-Stroke Bike Kits better than 2-Stroke Kits? Let's find out!

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  • Published on:  Monday, October 29, 2018
  • In a previous video ( ), I built and tested a 2-stroke bike engine kit. For $120, it turned out to be a great kit! It does require a little bit of upkeep and maintenance. In this video, I put together a 4-stroke bike engine kit and then compare it to the 2-stroke bike engine kit. We test top speed, ease of use, noise, amount of exhaust smoke, and several other things. I purchased the kit from Amazon for $189. I don't normally provide links to the products I test, since I'm not an Amazon partner and my goal isn't to sell products. These kits are also available on many other websites. So, recommend shopping around for a better price. Thank you very much for supporting the channel by watching the commercials and through Patreon support.
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  • Dmitriy Staroverov

    Dmitriy Staroverov

     10 hours ago

    Hey does it have transmission problems?

  • Rowley Jefferson

    Rowley Jefferson


    Greg’s gonna break my arm again after this present

  • Christian Fischer

    Christian Fischer


    Or you put an electric assist kit on the bicycle instead because it accelerates quicker, goes faster, requires less maintenance, costs less in the long term, and doesn't smell like a burning tire the whole time.

    I fucking hate those things, seriously people, stop ruining bicycles with this garbage.

  • Wakey wakey Games and bakey

    Wakey wakey Games and bakey

     2 days ago

    So every time you stop you have to re-clutch the 2 stroke?

  • daily reacts & interviews

    daily reacts & interviews

     3 days ago

    The biggest advantage is not having to mix 2 stroke oil in with gas I seen people ruin there motors

  • vincent poulain soulayrac

    vincent poulain soulayrac

     3 days ago

    Thank you for all your videos ! But I have a question about my 2stroke engine : which wire for the ignition ? Where the white goes.. and for the circuit breaker ? Thank you a lot and (i have the same engine than you so its easier to understand!)

  • Rob The Bob

    Rob The Bob

     3 days ago

    Yes it has more storks! My GF keeps asking for more storks so it must be better

  • Kino


     4 days ago

    why is the 2stroke slower ?

  • Wayne Eddy

    Wayne Eddy

     4 days ago +1


  • Wayne Eddy

    Wayne Eddy

     4 days ago +1

    I WANT ONE..

  • Samuel pyke

    Samuel pyke

     5 days ago

    I know it's an old video but is this legal to ride on the road like do I need a motorcycle licence

  • jake the minibiker

    jake the minibiker

     5 days ago

    Do a weedeater bike next (friction drive)

  • MeadowFarmer


     5 days ago +1

    It was a good build, but removing the heat shield at 7:00 probably isn't such a great idea. The engine does not rely on motion for air flow like a motorcycle. It has a fan on the flywheel which circulates air. The heat shield directs the air around the front of the piston. There will be some cooling while in motion, but the air flow in the front of the cylinder probably won't be as efficient or as reliable with it removed.

  • Stianofp


     6 days ago

    How about a mini-rotary engine, is it possible?

  • James Harrison

    James Harrison

     6 days ago

    . Something like that ,two stroke is the way to go. Sucks a little more fuel but definitely will outperform. Strokes are a lot smaller and lighter also. But the four-stroke will perform better at low rpm

  • Lachlan Curtis

    Lachlan Curtis

     7 days ago

    Put nitrogen on the 2 stroke bike

  • Doom Slayer

    Doom Slayer

     7 days ago

    Is the accelerator cable the same thing as the throttle cable?

  • Morgan Sedge

    Morgan Sedge

     7 days ago

    I enjoyed the video very interesting 4 stroke is cool too... I noticed that you didn't use a filter on the intake of the gass(petrol) but you did on the 2 stroke why? And although you didn't show it did you test both kits on road and across field ?

  • Zach Taylor

    Zach Taylor

     7 days ago +2

    Interesting that the top speed was so similar on both motor setups

  • Reed Stemen

    Reed Stemen

     7 days ago

    For anybody watching this and preparing to do install themselves, you CANNOT use lock washers over a slotted hole without using a properly sized flat washer between the slot and lock washer. The groove of lock washer will inevitably end up in the slot at some point and prove useless. Luckily he used loctite on the threads, but it would have worked fine with the addition of a flat washer. I am a print press technician and have seen this scenario many times. It’s cheap and easy insurance.