LIGHTER ROLLER WEIGHTS = MORE SPEED (FASTER SCOOTER EPISODE 16)

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This seems to be the cheapest price I can find for 19x15.5mm Roller weights for the HiPer 2 Engine:

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Thank you for the huge jump in subscriptions! I certainly don't know everything about scooters so please share your knowledge with me but I will try my best to document my modifications so you can do the same to your bike.

With all the engine modifications complete and put behind us, I am excited to begin transmission tuning. The factory transmission is designed for the perfect balance between fuel consumption, engine longevity, and performance. For my application, however, what I need it maximum performance at the sacrifice of more fuel - (It's a 50cc bike and fuel consumption is frankly the least of my concern!) So with that said, most manufacturer install stock roller weights that are far too heavy. It turns out Piaggio uses 6.5g stock roller weights in this 2005 Piaggio Typhoon. Leo Vince supplies 5.8g weights so might as well give it a try before I purchase even lighter roller weights! Piaggio report this engine makes peak horsepower at 9500RPM. With that said however, Leo Vince never really supplied any information at which optimal RPM this expansion chamber exhaust pipe is designed for. However, it's elongated shape and reviews on the internet tends to suggest this pipe is made for the higher 9000+RPM. This video will show you how to install the Leo Vince 5.8G roller weights into the transmission. Hope you enjoy!

Think of engines as an air pump. The more air you can get into the combustion chamber, the more power there is available - with the proper fuel mixture. Our previous modifications showed you how to allow the engine to suck in more air per stroke while the expansion chamber in the exhaust works to keep that air fuel mixture inside the chamber from escaping. Obviously, this power will come at the sacrifice of more noise, poorer fuel mileage, and more engine wear. Therefore always modify your motorcycle at your own discretion based on your own needs. Check out my other videos in the meantime to make your 50cc scooter much more useful and fun to ride in the city!

Hope you find this video helpful and please like & subscribe for further scooter tuning videos!

If you want your bike to bury the speedo needle like ours did in Episode 1, subscribe and stay tuned for future episodes. We will show you how to destrict the bike from factory, install the Leo Vince ZXR exhaust, open up the intake, and modify the transmission. Come along with us as we transform this little 50cc scooter from a slow and boring bike to a fast and peppy machine that will do circles around traffic!

Other bikes that shares the same platform/engine includes Vespa, Piaggio, Aprilia, Peugot, Gilera, TPH, Typhoon, LT50, LX50, ET50, Scarabeo, Stalker, Zip, Fly, etc.

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[delahayenator]

Also depends a bit on the pressurespring in the torquedriver and the type/brand of variator. With a standard vario my kymco dj with same exhaust (tecnigas) ran best with 5.8 rollers. With naraku vario 6 works beter to keep it in the powerband. I use a heavy pressurespring and clutchsprings in a standard torquedrive and clutch.

[spiderrootacpiratespotmaromba]

It depends on the set up of the scooter. If you are in stock mode you will lose high end speed and increase take of. You have to get a mid range to get take of and high speed at the same time mixing heavy and light weights in variator example: 1 heavy roller: 1 light roller and so on and trie diferent grams... been ther donne that! PIAGGIO NRG 1995.

[xDMGx]

Your videos are great, i’ve learned heaps in the last hour or so going through the scooter mods. Awesome job, thanks so much!

[juliusolsen]

Lighter rollers give it a better start hevy rollers give better topspeed

[creatornavi]

Your clutchbell is burnt, means that your clutch is slipping (draging) and your belt is already first gear, here's an idea for you to learn, cvt transmission is RPM dependent, if your just replacing part without knowing your PowerBand it's useless, the belt must be touching the bushing of pulley side so that you have your first gear better acceleration, to do that you have to add washer to the bushing before the drive face to increase the gap depends how thick you need, for belt to touch the bushing, second thing modifie your torque drive slide piece pin slot to make open, and close of the tourqe drive wider/narrower so that you increase your low end n top speed, third thing center spring of the cluth the harder the spring rate the more duration of every gears, (manual transmission analogy) same with the clutch spring again cvt is RPM dependent so that putting a harder spring to build RPM if your stock 1000rpm center spring 1200 rpm clutch spring is a good combination, ROLLERS are for you to work on, just use straight weight and don't do combination thank me later.

[GabayBuhay]

Thanks for this video of yours, it really helps me a lot. 👍🇵🇭

[thijsiphone]

LIGHTER ROLLER WEIGHTS = MORE SPEED. that made me laugh.

[brendenlee]

Lighter rollers = more top speed? Nope in all cvt's: lighter rollers=higher acceleration less top speed. Havy rollers=lower acceleration but higher top speed

[wilsonkee]

First Xmax250 using CVT. the hype of light and heavy roller got me confuse. based on one weight, should one choose the roller weight where RPM hits almost where the peak HP of a bike. in this case factory spec max power at 7, 000rpm, hence i should be changing or not change should my rpm hits 6, 500-6, 800rpm ? if that is correct, am confused as my RPM odometer shows 8, 800rpm red line. my biggest dilemma, should i based on 7, 000 or 8, 800 rpm.

[smilernok]

its about finding the sweet spot, , so that you can acc. with best rpm all the way from 0 -> max speed, ,, belt must not slip = heating issue

[JDMz]

Always pinch the belt so it's slack and free moving behind the variator. Also to get more mph use a few shims between the variator.

[natvega]

My 150cc gy6 has 13g weights from the factory, cold start 1600rpm warmed up 2000~2300. It takes off at 4000rpm like a clutch on a 5 speed so what are 13g weights mean?

[briggaskin]

The guy is showing you the results he is getting on his own scooter...if you are getting mad because you don't agree with his tuning then ignore it. Why the squabbling? If you know better then make your own you tube vids. Think about it....you are raging over a strangers tuning method? Why do you care? If you know better then your scooter will be faster. Interesting videos no matter what

[matari]

As always great video. Very well explained. I like the idea of weighting all the rollers and place them across from each other depending on their weight

[ryann]

I use an old tennis shoe to hold the kickstarter gear while i remove it, works well, free

[isabelhughes]

I have the same scales but mine are covered in drug residue....

[leohobbleohobb]

well i ca see by your last awnser that you are essentialy going for what i explaind.what is the engines powerband?is it only hp or only tork or a cobination of both?by only changing the rollers to ligther ones you make the tranmision hold lower gear with higer rpm.so the engine rews more before the cluch in the back engages and the wheel moves.rigth?i am saying that it is a cobination of cluch spring tention in the back and rollers should bee done at the same time.by losing tention on the 2-3 small springs for2-3 cluch shoes it engages at lower rpm if you tighen them or change collor springs(they are often collor coded)to hevyer springs it engages with higher rpm.if your weel starts to go at max hp as you indicated is the same as saying you want to get the wheel moving at max rpm.then you have only about 500rpm for the redline.if you mean that it should catch where the engine curves powerband is at max you look at the tork curve.it should start to move the wheel where the tork has max peak.around 5-6000rpm or 7000 one some.if it engages at let say 6000rpm you have around 4000rpm to get thru the cvt gear range so you at max rpm 9000where hp max is and 500 more before the redline.i revisit cvt regularly to bee shure.have done this for 40years.if you can point out where i am wrong i gladly corect after i have confirmd by teksbook on cvt.you comment i anwserd to was you sad litgher rooler so it engages at max hp wich is meaningless.you have no more rpm to go on as soon as the bike move then

[MrBerenguer]

Hi Thks four your exllente video I have a Peugeot V-Clic 50cc 4T whitch best size rollers you recommend four best top speed thank you 😮

[xarisspiratos]

Nice video!!!
I have a vespa lx 50 4 time stroke, stock weight is 6.1 i think.
Which weight do you think is the best for some more acceleration but not lossing top sped?

[alphavaughn]

Any tips for roller weights for Yamaha Aerox 155cc? It's a straight 13's (stock). My RPM is stuck at 8000 and the limit is 10000. How can i maximize my RPM to 10000? What rollers would i use? 11x3 and 13x3? Or 12x3 and 13x13? Thanks! 🙏🏻