I have become a first owner of a kent motorbike and would like to say thank you so much for your videos, I have had to scrap and save to get it,the mechanic who's put it together for me did great.. Now I can fix and tweak it to my likeing next year ..thanks once again..

I have a racing engine with performance exhaust and head and I went with the 40 tooth sprocket and I can go anywhere. hills don't slow me down at all and for everyone who rides bikes with engines buy a chain breaker they really come in handy!

I have a 36 tooth, and it's definitely ambitious in my area. I've upgraded my engine, so I can go 37mph on flat road, but even a slight grade will gradually slow me down to about 20mph. Steep hills are a problem, and require hard pedaling and great restraint with the throttle, to prevent engine damage. I popped a crank seal, so I'm currently rebuilding and upgrading it. The idea is to make enough power to get up hills without lugging the engine or popping a seal. Fingers crossed...

Why post a video, and reference a gear program / calculator, then not give the link to "Gear Rat" ???

Your videos always teach me something, even if it's a very small bit of info, I always feel I come out knowing just that much more. Do you guys sell parts? Where are you located?

In other words if you want quickness go with a bigger sprocket if you want long top speed on straight roads go with the smallest

The IDEAL for good torque is 35:1, but the MINIMUM is 21:1 to at least have ANY power under 20km/h. This is for 26in wheel sized two stroke engines.

Think of it this way. 1/44 tooth sprocket gives you more low-end torque for climbing Hills. So less pedaling. 3 6 tooth sprocket will give you more top-end. But you have to Pedal harder going up the hill. It's that simple. If I could buy 50 tooth sprocket I would. Just to pull the hills I don't need to go 35-40 miles an hour

Thank you for taking the time to teach us a few important things about this motorized bike hobby man! Keep it up also would anyone happen to know why my bikes engine vibrates really fast once I reach near top speed of my SD stinger 66cc/80cc engine?? I don't have any idea why it does that but it seems like the bike struggles to reach its full potential

the wee thing you were on about was a"wood ruff key", i would like to get an 11-tooth for the front but you`d maybe need to modify the casing at the top. it would be easier to change than the back one.?

So for someone who's carrying weight and in a very hilly area would a 56 tooth sprocket make climbing hills a little easier? I have the stock sprocket right now and I am a relatively large guy and I pull a trailer of up to 100 lbs the hills around me are substantial and I have to work rather hard to climb them which is the reason for finding this video.

changing sprockets is usfull in some circumstances but there are lots of variables to consider and the rider is the first thing due to weight of the person then the terrain eg road or offroad flatland or hill climbing

Im 350LB and I use a 44 tooth gear and I can do about 43 MPH no problems but I build strong engines !

I have BBR mag rims. How do i fit a larger rear sprocket? My brake caliper is right in the way. It seems if i go any bigger it wont fit.

Kudos to you JMP! Excellent channel; very professional.

I have a 44 the sprocket and my bike tips out at 37 mph so what would a 38 or a 40 tooth sprocket do? Is it safe to say an extra 10 mph?

there is a gear kit for 7 gear to go 60 mph it is 139.90 at a website if you search standerd gear kit for a skyhalk gt bike so you can shift threw gears

It's a crime that you didn't at least show us the top speed for common rear sprocket sizes while you had the gear rat up...just a few clicks. On a different note, there are many comments on 20 tooth sprockets and going 60+ mph...I'm adventurous AF and theres no way I'd want to do more than maybe 35 or 40 mph on a bicycle..especially one with solid suspension. All it'll take is a small pothole or a chunk of hard mud to send you over the bars and likely the hospital. I've taken tumbles on regular bicycles at full pump that almost killed me. I've taken two spills on the my aluminum china cruiser both at under 10 miles an hour and I'm still healing, still riding, but dam if my legs weremt cut to shreds by the gas tank edges as i went forward..and that's after i lined them with some red electrical tape for just that reason. Also thats whilst i wearing jeans...something to think about.

the problem with some bikes are the speedo sensor are taking the speed reading from the front sprocket, changing sprockets size may show the wrong speed on the speedo.

Good job, I liked the details you explained them very well.

Why are there no vids or reviews on 38 and 40 teeth

Ask what kind of power you have, and then you can ask about terrain. If you have upgrade parts and stuff and run at 5 to 10 horsepower, you might want to go down to a 36, or even down to a 20.

Be awesome if you could provide a link to the program or upload it to mediafire.

I cant find GearRat, can someone send me a link or tell me where to get it !

I have a 2 stroke, and i am placing it on a Huffy Nel Lusso Cruiser bike. Somehow the Hub nut cold froze to the bolt and it is not coming off. Do you happen to have a rear axle for this type of bike, and how much would you charge me for that. someone told me it would be better to put a Free Wheel on the back. and put a hub mount instead of what comes with a 2 stroke kit. The one i purchased is a 36 tooth, and the hub mount is a 1.5 " Diameter .. please let me know what my best option would be...

10 Years late but number 899 to like the video

Dope I have the high compression chamber looking for something to take the torque off the back rim I'm riding on flat ground and I'm on my third rim

ive wacthed many vids and couldnt help you helped alot

I couldn't find Gear Rat either, but did find this site instead. Just input your year, make, model, etc., and click on Load Gearing, and the program sets up everything for you. You make changes in the spaces provided and go from there. The site has a lot of cookies that my ad blocker on Firefox doesn't like, so I had to go to the site using Explorer instead. Deal with that part on your own if you so choose. The website is gearingcommander d ot com. Pretty impressive information it gives out.

Whats the biggest sprocket you can get & how fast it will go. I what this to ride around my property some of it is hilly. Im not interested in speed.

Bro, you need to readjust the engine so the carb float is level. It needs to go down and tiltedup, front up some, and same for back. It ill run much better, trust me I have built over 42 bikes.

Can i put one of this on a flip folp hub be for i buy one 1.25 hub will it work

hello. I was wondering if you have some advise. I have a motor like in your video that I've put 3000 miles already and changed the camshaft and bucking bar. I made a video about it if you see it I hope I gave out good advise. My question is , is there anything else I should change at his point..? The ball bearing? how do I get that out? the chain? mine looks good. I'm too chicken to open my motor like I see yours. Any help is appreciated .

can you go small to the same ratio on the rear axle gear as the same as the front on a go cart my has the torque converter on it to but dosent want to pull up a hill or take off fast any info

my motorcycle have 21T drive gear & 70T clutch gear.im using 14T on engine & 47T on driven sprocket.what is best sprocket combination to be use in order to run faster?

On eBay Google sprocket adapter and sprocket for motorized bicycles they go from 32 tooth all the way to 44

sir please answer this. if i have ratio which is 52/19=2.7:1 and then i change to 47/17=2.7:1. who is the lightest one?

I have a large 54cm road bike frame running on 700cx32 wheels.rather hard,tall,thin wheel. I am 6ft,but only 185lb. My 80cc engine has performance carb bbr and expansion tube exhaust.now with a 44tooth sprocket,will I climb steep grades ok? My city is like San Francisco hills. Or would I be good with a 41?

I pulled the bucking bar to grease it, and bearings came out. Any suggestion on how to putt them back in place. Thank you.

Cool tutorial!!

"Jears" got me.

just ordered a 68 tooth for my X2 110cc drag bike

I Google the name GearRat and I got nothing where is this website or app would like to know more

I would like to make a motorized fixie, I had the idea of using the flip flop hub sprocket with 16 teeth, I know it's small bout how fast would it go?

THANKS juice, hey this is unrelated to drive ratio but I notice in the vid that you have a welded area in the clutch section, I have noticed this in other vids, is there a weak spot I should know about? LOL

I have a 5 hp gas engine with a 10 tooth clutch and want to know what would be a good rear sprocket for this (a 420) chain would a 54 tooth or a 60 tooth sprocket give me more pulling power? thanks. p.s. love your u tube demos.

woodruff key is the little half moon key you was trying to work out 👍 lol

I m riding hill climb in using cb 125 bike in srilanka what are the most suitable sporcket for my bike.

hello sir..i got a ns150 kawasaki, im 61 kl. what is the best combination of sprocket should i install?

For anyone interested, soon I'll be uploading videos of my 38.1:1 5HP 2 stroke motorized bicycle with top speed of 60km/h on the top gear. Teaser is up right now.

I need to buy a chain suggestion? Something tight and we'll made.

My bike is Making a clunking sound as the front sprocket on the engine turns. Any idea what it could be juicemotoparts?

Hey, I'm thinking of going from a 4 stroke to a 2 stroke because 4 stroke transmissions are crap quality & a bitch to work on & had my 4G transmission brake on me for like the 3rd time this year. plus I hear 2 strokes are much faster anyway. Now I'm wondering, could a 2 stroke motor sprocket be adjusted to clear a wider rear tire so I can align it properly with my rear sprocket & so the chain can clear my rear tire? 4 stroke mounts made this easy by having slots drilled into the mount to allow the whole engine to be moved if needed but 2 strokes don't seem to be able to do this in the stock mounting configuration.

What's the name of the key that secures the 10 tooth sprocket? Where can I order one? Thank you in advanced!

So if you want to change the size of your sprocket you have to change the gear ratio?

I modify my bike, but I do assist went it come to climbing up hill.

I wondering about the ratio, if the result of 4/8 and 6/12 =0.50 , then the speed-torque-acceleration will be performance the same or something will be difference. According to the same ratio but difference sprockets, then how can we know which one are better or appropriate to use? Thank you so much.

Great job. Loved the video. 👌👌👌❤️

i have a 68 tooth sprocket on my Go-kart axle. i need a smaller sprocket for my electric motor. my teacher said from around 10-15 teeth will do but i don't know if any sprocket size is ok soo what do i buy for it?

i he a 28 tooth rear sprocket on my 49cc two stroke motor and its slower then the 44 tooth stock sprocket why is that????????? my bike is a 700c 28" tire road bike and I weight 190, roads flat could you tell me why????

My 44 tooth will do 35.4 but I have a dellerato carb and a better cdi...

Can u move the drive sprocket around on the shaft for chain alignment?

My clutch is sticking and it won't engage

I'm pulling up 36 online the kit comes with a 44

Where can I find GearRat?

Hey bro, I have a 200cc Bajaj Pulsar and it reaches easily 113 Kph. Sometimes it reaches 125 kph but because my corroborator needs to clean up and engine is well firm, it doesn't vibrate. I would like my bike to run 150 kph. what sprocket(s) size(s) do I need?

Nice video, you are very knowledgeable

Thanks a lot. Helped a lot.

i would like to see the gear ratio program i dont see it or can find it

you want more power? Turn that HEAD 180°.

What rear sprocket I can use with a 12T sprocket for the engine??

I have a 14/50 in my yamaha r6 2002 was that a good idea?

Can you increase the size of the front sproket wheel? The one in the engine....

The bigger one will still not go as fast as the smaller one it's just quicker in the beginning

I'm 376 lbs. My bike gets up to 75-77mph

i have a cg150cc eagle bike an I have a 17 at front and 34 at rear will it cause any harm

I got a 35 tooth and the chain ain't fitting right! What's wrong with it?

Donnie they mount to the manic mechanic hub sprocket system, you can find them at pirate cycles. Com..

if i lower the number of teeths on my driven sprocket, will changing the air filter from the stock one to an professional air filter balance everything??

can u make a vid about how to take the engine 10 teeth sprocket off ???? plsss man plsss i really appreciate tht

the moter in funt of u is a 90cash moter the ones i get r 180cash and ther rings and alll the studs rrr 2 times as big as yrs what she sed

40-43 mph on a stock engine 36 tooth sprocket but i guess im a pretty light rider

For racing tricycle 16-48 =3.00

38 teeth small sprocket and 38 teeth Large sprocket how is faster bike small and Large

What ever happend to this channel? Why did it die

Why wouldn't my motobike go faster if I made my machine a 110cc its only making 80 just like my old bike

Cool!

can it go 40mph?how?

I'm like 93 pounds so what would be a good gear ratio for me

Not on a 100cc

I have 12-28t 65+

👍👍

so less teeth=more speed?

What happens if you put a ten tooth to a ten tooth? 😂😂

Jesus.. settle down and focus bro.. Folks that dont know this stuff are totally lost right now...

Bro you're so hard to listen to do you talk much? Terminology is screwed up too choppy you should have practiced

Work on commentating please

Wow u r bad at simple ratio calculations.

Ummmm ummmm ummmm ummmm ummmm ummmmm ummmmm

Crap info. Way too many assumptions.