Phantom 85 - Change Gear Ratio with 20" Rear Wheel Swap

In this episode, I set out to lower the speed of the Phantom 85 motorized bike with a gear change. I didn't have a larger rear sprocket on hand. So, I improvised by swapping out the rear wheel of the bike with a smaller 20" wheel as opposed to the 26" that came with it. The bike is easier to ride, feels good, and the gearing is just perfect now.

[@LAHover]

It's still alive, neat! lol... Nice little wheel swap, keep it up!

[@pulsar2121]

Thanks! Will do!

[@guyxmas7519]

Can't wait to have my build done after seeing this video 😊

[@NicksBikes]

I absolutely recommend this mod! It changes even a bog stock "china doll" 66cc into a mountain climbing MONSTER!
I did this because I needed a new wheel and 20" was all I had on hand

[@pulsar2121]

Some of the best discoveries are done by accident.

[@KoolRanqe]

I did the same because I didn't true my sprocket and sheered the axle on my 700c and the 20" had sealed bearings. Zippy little thing after that

[@leonardarola]

You nuts, anglo. Loving it.

[@mikemiller3303]

sounds awesome some of the out of balance might be coming from the piston MR. Hoover put in but if you want that engine to last that's what everyone is doing getting ready to put mine together got my chain saw piston in this week and when I compared the weight difference from the original window piston there's a half oz difference so I don't know love that pond you drove upon other hobby bass fishing lol ride safe bro

[@fr33dumb0]

What piston are you recommending? A 52mm coated?

[@mikemiller3303]

@@fr33dumb0 I put in a stihl 52mm 044ms440 big bore piston with 12mm pin bearing and made my own window in the piston got 1 phantom 2 experiment with 1000 miles on her got another one with almost 600 miles on her still running great use 32:1 opti lube 2 full synthetic 2 stroke oil temp on a hot 95 degree day around 245 cruising around 25to30 mph she'll go 46mph not good running a 2 stroke wide open for long periods of time my opinion and I've never had a engine lock on me yet for pushing it to hard hope this helps ride safe brother ps they now have a version 3 phantom no problems from what I heard so far

[@mikemiller3303]

@@fr33dumb0 yeah that's one of my main complaints was that loud popping pipe but was going to change it but I live in a small city it let's drivers know here I come lol you want to try to keep it below 30mph my opinion during first and second tank of fuel and I use the black and white fiber clutch pads they don't slip on my minaralli or phantom

[@mikemiller3303]

@@fr33dumb0 BBF channel does a good video showing what it does to your piston and rings

[@christianhunt7382]

I gotta say I was a little hard on you in your last video, but upon watching more of you channel I wish you the best of luck, ride safe, will be watching for more!!

[@pulsar2121]

Thanks, I appreciate it.

[@jameshuffield1755]

good stuff for sure. interesting about the gearing and how you went about it. safe is best for sure.

[@pulsar2121]

Thanks, I like to think outside of the box and in this case it worked out really well.

[@MotorizedChuck]

I bought 10 of the phantom 85v3 from ZTMOTO. The V3 utilizes real needle bearings and the exhaust port is narrower. It can use transfer port rise by .5mm and will be less 4 stroking in mid range.
I heard you saying 1 time your other wheel with the 44t it was wheelie prone! Lol it's a torque monster, especially with an expansion chamber! At 20mph on an xl Genesis frame

[@mozezcen-valley7555]

Looks fun all the way

[@willpresnell81]

I'm starting to think that the secret to a good TH-cam channel is a cool ass dog🤔

[@pulsar2121]

haha I'll pass the compliment along to Walter.

[@thecbc7658]

Phantom 85's aren't great daily's especially in hot weather. They are great race engines tho

[@michaelbrinks8089]

Walter is a good doggie !!!

[@pulsar2121]

Yep, he's the best.

[@lifesadventureskeepingitre1180]

I just built a ms460 with a 28 mm carb and a 32 tooth sprocket and I have not tested it yet. I'm looking for a lot of speed I was told that this gives it to me. Low rpm and high top end speed. 32 t0 1 mix ratio.

[@pulsar2121]

Undoubtedly, that should be a fast setup. Have fun and stay safe!

[@ShinyUmbreon765]

I'm gonna go out on a limb and say that the reason the brakes feel better is that the single lever had the right pull ratio.

[@johncole8501]

Thanks for video, were can i buy phantom 85cc from

[@MotorizedChuck]

Me, Motorized Chuck's bike engines

[@user-po9hv1zh5w]

Small front wheel? 👀

[@GONE4GOOD79]

Hi walter😊

[@MotorizedChuck]

22kph is 12.8mph and all these engines should fire up btwn 5-8mph. I start mine, I call it, "Divorce that damn clutch lever"!

[@doug42780]

Upgrade your pipe. Can get one off of wish app for. 90$

[@pulsar2121]

Thanks for the suggestion. However, the engine is no more.

[@fr33dumb0]

@@pulsar2121 rebuild it?

[@JoshMo1993]

I would subscribe but you keep restraining your top end and just talking. Much love.