Scooter Gears Explained! Primary & Secondary Kits - Which To Buy?
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- Опубліковано 1 лип 2024
- www.scooterstreet.com.au
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In this video we discuss scooter diff gears, what the primary and secondary set do, and how to work out what gears you need for your scooter!
For more information on how to work out your final drive, we have a full article on our website - link below!
www.scooterstreet.com.au/whic... - Авто та транспорт
Quality content👍
Thank you. Glad you like😁
Full gear up kit sounds beautiful when mixed with the iconic stage6 mk2 racing scream!
Couldn't agree more!
That's a great explanation of how to work out the gearing.
For a rough idea of the final drive you can mark the clutch bell, and tyre. Then see how many turns of the clutch it takes for the wheel to turn once.
Glad you appreciate it, and you're absolutely right - we have used that method before. Counting teeth can be monotonous work😅
I buy so much From you guys because I'm from Sa, didn't even know you guys had a channel 👌 legends
Very good video, thanks!
Thank you, and happy to be of service😁
Very useful video, thanks
Thank you for watching👍
A lot of people complain about the noise of the Malossi gear-up kit,due to the gear teeth being straight cut.
PN Planning are selling both primary and secondary gear-up kits with helical gears(for the Aerox 100,but maybe for other makes,I haven't checked).
I just ordered my PN Planning p&s gear-up kits from Webike Japan.
They are a lot cheaper than Malossi,also.
If their gear kits are as high quality as their 9-port,alloy big-bore kits,I'll be totally happy.
Sounds like a plan, please let us know how you go👍👍
Great work again mate
Thank you, We aim to please😁
that was good, i just went from a 125 to a 171 piston,need to do the calculations now to order parts;
the previthey are new, may keep them,have to account for that too
i guess the first thing is to open my gear box,count teeth and go from there?
it's a Shenke(same as Jonway )125
yes that is it👍
Nice
We like that you like.
Hello, thank you for making such an informative video, would you be kind enough to advise me, my bike 2000 yamaha slider, stage 6 pro 70,stage 6 hpc crank, polini 3G clutch, 21mm carb, stage 6 pro pipe. I’m maxed out at 55, what would you recommend for my gear up. Stay safe thank you
Thank you for watching and your comment. You need to find out the current gear ratio. so do this first and then you can select the gear upgrade to suit. Try for a Secondary gear and here are available options: Polini, Malossi, Stage6, Top Performance.
Hi I’ve got a Zip with a TT exhaust and they 70 cc cylinder I watched your video and I’ve been looking online and I’m thinking the 16/37 is a good choice but just want to clarify from the master if this is a proper fittingI’m looking for good acceleration and a nice top speed
Hi Leanne, depends on your factory gears. The 16/37 Primary may be a little much for you with that setup but worth a try if you're really after some more top speed. The secondary 14/47 set on that bike is also a good option!
do you know what the stock roller weights are in a variator for my Vitacci Spark 150cc
We haven't come across this model in Australia sorry, I would recommend removing and weighing them with some kitchen scales👍 at a guess from other similar models, 12-14 gram.
Hi i have a scooter with a stage 6 engine and a 22mm carburetor and a normal belt not the oversized one .
I want to change the gear box so what is the best ratio for that and did can i buy the primary without the secondary? Thank u for reading 😊
You will need to see what is available for your scooter model.
I have a 05 bugeye zuma with athena bbk yasuni c10 pipe dellorto 17.5mm carb top performance variator kit with 7 gram rollers with a malossi fly clutch and bell with a yellow 1500rpm contra spring with the medium green clutch springs on the clutch. I have no idea what the stock gearing is in my zuma. I definitely need an up gear kit but with so many different numbers with the gears im totally lost as to what to get
See here for the Malossi gear kit, oly 1 option so can't go wrong😊
www.malossistore.com/en/au/yamaha-zuma-50-2t-yazu50-M
I'm planning a Stage6 Sport Pro MK2 AC on a Adly Thunderbike 50 (minarelli horizontal) polini intake, racing membrane block with carbon membrane) polini high speed variator, polini 3g clutch scr corse Handmade, motoforce hpc crank and polini gearbox cover. I will reach about 95-120km/h, should it be enough to change the secondary gearing?
Hard to answer this, the secondary is good place to start.
I have a aprilia sr 50 factory and upgrading it to 70cc malossi kit with the malossi ecu and a racing exhaust, wich gear kit i should get for it if I want more acceleration
What year is your SR50, and the engine prefix. C361M ??
hi from the uk ... recently upgraded my bike using your zip video to put a bore on my nrg mc2 5.7g rollers ect , i want more speed from the bike what gear up kit do you recommend
We didn't get the MC2 in Australia, only the later model NRG in limited numbers, so I couldn't give you specific advice on the exact kit to use - but I'd recommend increasing around 15% if its a basic sport cylinder kit and sport/street exhaust. Count your factory teeth, use the ratio calculation and then plug in some Malossi or Polini options to work out which is going to give you the increase you're looking for. We have an article on our website (link in video description) which also shows how to work out the ratio, you can just substitute in your teeth numbers.
Im running a 171cc kit on my gy6 ruckus with a 12x8 rear wheel. What would you recommend for me?
HI Rob, I have no experience with the Ruckus. It depends on what your chasing? Some are looking for more acceleration some are looking for more top speed...
Hi there 🙂
I like you're video's 👍😊
I have a Piaggio Zip Euro 5 with a Malossi 80cc cylinder but my gearing is still stock. My top speed is 60kmph but i have plenty acceleration.
Is there a way to change my gearing so my top speed will improve a bit ?
My local dealer said that they don't know any gearing options that fit the Piaggio Euro 5 engine with the 10" wheels that the Zip use 🥺
(My complete setup is)
Malossi 80cc cylinder with Malossi ECU
Stock air filter box but with Malossi foam
Malossi air filter tube
Malossi variator but with piaggio belt
I don't have the torque driver yet , but does the Malossi torque driver also increase the top speed or only the acceleration ?
🙂
Yes you do need the gear kit with this model. What you need to do is find the part number for the Euro 5 Piag Zip gears and compare them to the Euro 4 gears. If they are the same then you can use the Euro 4 gear kit from Mlaossi. www.malossistore.com/en/au/piaggio-zip-3v-iget-50-ie-4t-euro-4-2018-2020-pizi3v50-M.
Torque driver assist yes.
U need good brakes too those stock kits wont hold long when u need to make a quick stop.About the gear sound use good oil
Thanks Bro✌
Hi do you know about the same thing but with a mo2 typhoon 125 2 stroke engine with a 172 kit. Im stuck at if i need to just change the secondary gear to the malossi one nd leave the primary gears as they are thanks in advanc
No, sorry I don't know the answer. You will need to do some research. Remove your gears and count or look at the parts diagrams. Also see what is available firstly for this model.
Ok mate no worries I'll have to keep researching untill I get to the bottom of it 😅 but really appreciate your reply thankyou. Also video was a good whatch helped me some what understand it abit more than I did 👊🏽
Hi. I own malaguf12r 2008y. I changed allmost everything. Naraku 70cc with stg6 pump, stg6 clutch with bell and variator, reed valve and collector. I wanna to change and gears. Can u tell me what gear should I pick because I can’t understand what is the rotations and the teeth’s 🤷🏻♂️🤷🏻♂️
Find your scooter on the Malossi website and select the secondary gear kit.
I’ve got a gilera stalker with a 70cc malossi cast iron kit fitted standard 17.5 carburettor ( jetted to suit ) and malossi red sponge with standard airbox, also got 5.7G rollers and yellow clutch springs. My scooter tops out at 60-65mph but screams it’s nuts off so I don’t like going that quick very often. I’m just wondering which gear up kit should I get. The gearing is standard piaggio currently.
The set up sounds really good! The gear kit, well it depends what is on the market for your engine, Malossi do a 13/48 Secondary for GS. Look into the secondary gear kit and check out our Gears Video to gain an understanding of how the ratio will effect the outcome.. ua-cam.com/video/Wfuqm95sBaY/v-deo.html&ab_channel=ScooterStreet
@@scooterstreetau Thankyou yes it runs very well and lifts the front end up with no problem I just don’t want it screaming at me when I’m going flat out 😂 do I need to do both primary and secondary gears or just the one
@@dexietyy7922 You could consider changing the rollers or upgrading the Variator to over range. 2 stroke are supposed to scream..
@@scooterstreetau might have to or I might get the stage 6 primary gear kit as it’s already pressed together, I might put slightly heavier rollers back in not sure yet
@@dexietyy7922 Do the math with the Primary gear too get a final ratio, good luck👍
Awesome video, sadly not relevant to my scooter, as it doesn't have two wheels at the back with a differential in between.
Thank you🤩
Dude what the hell are you talking about it’s a scooter
HI, help, i have an Aprilia SR150cc 4 Strokes and i would like to gear it up. Any recommemdation please?
I am not 100% but Polini may have a suitable gear.
Always very helpful!! I was wondering what you guys think about adding a gear up kit to my piaggio zip 2t. Has got the malossi sport 70cc kit with TT vince exhaust and malossi multivar 2000. Do you think putting the malossi 15/38 gear kit would do any good ? Thank you
Thankyou and yes that's a great idea! Or a 14/47 secondary.
@@scooterstreetau Thank you for replying. What do you think about the malossi 16/37 gearup kit ?
@@ST-9788 Calculate the gearing as in the video before fitting that one.
Hey, I have a few questions.
I have a 50cc gilera runner upgraded to a 70cc MHR cast iron cylinder.
I recently changed the gearing from 1:13 to 1:11 by changing the primary gears.
I gained 10km/h but it bogs down at that speed and it also screams alot (the variator rollers are 7,6g).
Do you have any advice?
The straight cut gears do make a turbo noise at high speed, is this what you mean Screams?
Also try to retune the carby jet. Booging may mean you need the next jet size. Do the pen test adn make sure the belt hits to top position in the Variator.
@@scooterstreetau ow yes, I love the turbo sound but with screaming I mean that it's revving too much
@@zekzygaming5128 Ok ok, try heavier rollers, BUT you need to do the Pen test first and then go heavier by small increments. If it is reaching the top then you may consider the secondary gear kit. You could also up the rear tyre size.
@@scooterstreetau yes I'll try the pen test first. Thank you very much mate
@@zekzygaming5128 Good idea👌 Very welcome.
I'm thinking of upgrading my 80cc to a 150cc plus maybe 180cc or something along those lines however I primarily want to increase the top end by installing a smaller final gear but no one is able to tell me what the max size that fits in the case and will the scooter be highway worthy? For some reason no one in the scooter community cares about the highway.
The parts manufacturers have a range of set gears so you are limited as to what you can fit.
Look at the available gears for your scooter and go from there. Compare what you currently have and gear up accordingly.
@@scooterstreetau I get that part, but are you aware of any gy6 scooters that are highway worthy where they don't have to be at full throttle to keep up with highway traffic?
@@Micscience I am not aware of any. This is where you step into a 250- 300cc.
I have an Aprilia sr 50 r 2021 euro 4. Which primary and secondary could I put in to extend the transmission to 50 cc. She currently has 11/50 secondary and 13/46 primary. While older models have fast transmission
Check out the Malossi website, all gears are under the Transmission category.
www.malossistore.asia/EN/aprilia-sr-carb-50-2t-lc-2004-piaggio-apsr0350-M#INGRA
@@scooterstreetau what gear ratio would you take from malossi for 50 cc
@@suzukigsxr8856 It depends on what you want, I would change the secondary if I wanted higher top speed. We made the video so you can work it out at home..
@@scooterstreetau now my secondary is 11/50. How long can I extend the transfer to the secondary? Can I gain speed at 13/48?
@@suzukigsxr8856 Do you want to gain top speed or acceleration?
hi what would be some good gear for a 70cc polini 2 stroke vento so i can get up to those 80mph number, i have a pretty good decent setup i’d say, i have the big bore kid with polini exhaust, polini variator and malossi clutch, 21 keinhen carb,, coil and cdi only thing stock in crank and magnet,
You would consider going to a higher class (race type) cylinder and exhaust and upgrade the gearing too.
@@scooterstreetau okay,, what do you recommend?
@@curlschannel7379 Find out what is compatible for the model and then go for the race cylinder and exhaust, we do not have a Vento in Australia ( possibly rebadged as something else) but it looks like a Minarelli based engine so go down that track. What part Brands have you previously fitted?
@@scooterstreetau yes minarelli, it’s a QMB40 if i’m not mistaking it’s the long case, it was completely stock, and i miss typed something it has a 28 mikuni carb, kinda big but it rips, anyways it was completely stock then i added those parts like a 72 polini kit and exhaust,, the variator is also polini i think i’m running on 6g rollers right now,, with a hard spring on the clutch, i’ve also realized people have there pulley belts loose, is that how it’s supposed to be? because mine is on pretty tight,, i can’t get it on the variator unless i open the clutch a bit, is that good?
has the stock 16/49 primary gear and i added a stage6 15/39 secondary, for top speed, it raised up to maybe 56mph let’s say 60, i know it goes faster because i’ve seen a honda elite 72cc go 79mph and that’s where i want to get at, i don’t what there setup or gears look like though
Yamaha aerox with stage6 mk2 kit with everything best secondary gear ratio
You need to follow the guide, work out your factory ratio first. No short cuts unfortunately.
What would you recommend for top speed a 15/41 gearing or 17/40 for malossi primary it's for 10 inch wheel also on a stock secondary gearing???
15/41 gives 2.73 rotations per cycle which is sufficient for 10inch and a performance set up.
@@scooterstreetau sow 15/41 primary gear for top speed it is on a stock secondary gearing
@@NotSOFast597_ dont apply, not enough rpm.
@@scooterstreetau don't worry I am currently using the 17/40 gear now I'm gonna go with 15/41 for top speed my scooter is a Yamaha jog short engine with stage 6 mk2 racing 70cc , yasuni c21, mvt digital direct 19 ignition stage 6 hpc crank 360 polini manifold Keihin 28mm carb malossi transmission*
@@NotSOFast597_ That makes a huge difference when you have a set up like that. You should mention that earlier👍
What Do yo think about a yasuni carrera 10 , is a 19 mm good?
Are these gears or exhausts? Carbys?
@@scooterstreetau Yasuni carrera 10 is a exhaust,and the 19mm is a carb
@@xaff4414 Yasuni produce very good products so I would say the parts you mention would be of good quality.
What gears are best for zip 15/38 or 16/37
2.53 vs 2.31. It will depend on your set up and your engine power.
My aprilia sr 50 r goes 93 when it reaches max speed the engine shuts off is it some blockage
You will need to investigate > start with the piston , fuel, air, electrical.
hi i have aprilia sr50 my setup is gianelli reverse exhaust and malossi multivar 2000 what gears sould i use pls help
Fit a 70cc kit before the gears.
@@scooterstreetaui wanted to keep it 50cc. will the malossi gears help my top speed? and what gear ratio to use
@@kokimafija Really? Ok, check the fitment on the Malossi website for your model.
@@scooterstreetaustock gears are 14/43 and its saying to put 16/41 and now i don’t know will i get better top speed or better acceleration or both
and thanks for helping i appreciate it ❤
@@kokimafija You need rpm to have any effectivness.
Hi,i have an Aerox,just replace the stock exhaust and first gear slowly move after revs,when i put the stock back first gear revs,what îs the problem?
Which exhaust did you fit? If you have fit a performance exhaust the engine will move slowly from the start UNTIL you make adjustments and parts changes too the main jet, the rollers and the clutch spring..👍
@@scooterstreetau i put leovince TT
@@33ato92 Did you tune the engine? see previous reply.
@@scooterstreetau no,its original 50cc
I change the mein jet 72 up to 85 now its move From the start,But 85 its not big for 50cc?
Hello sir… i have kymco 125 cc…i want a top speed gear installed… pls! give the gear Ratio to acheive it . Thank you!
What is current gear ratio and what is available for your model?
@@scooterstreetau its a stock gear. my scooter brand is Kymco here in Taiwan
It is impossible for me to know 🤷 There are over 20+ different model of Kymco 125cc.@@dcharmz5915
its a jockey SR model
We dont have this model in Australia, I am sorry I can't help.@@dcharmz5915
Is 15/41 good for Adly gta
Compare against the original ratio.
Primary : 16T ori
Second big 56T ori
56:16 = 3.5
Second little : 12T ori
Final : 35T ori
35:12 = 2.92
10.22
15T. if i change the primary
56T
3.73.
X.
2.92
10.89 this go higher
So the higher the better acceleration i get? And less top speed?
Not much gain as a %. yes.
@@scooterstreetau is it worth it to change the primary? Or just play with heavier roller? I just want better acceleration
It depends on your target.@@fikriaero9287
what KIND of speed seems to be an issue some want more top end others just want better performance UP TO the regular top speed
The gears can give a higher speed at the same rpm when compare to the original gearing.
@@scooterstreetau exactly folks are going at it backwards imo(i did too!) they start with carburetor and then variator weights on to the big bore gearbox last now im thinking thats first if you want SPEED i want the big bore to get me up to 35 a little quicker its a stay the hell out of the way of traffick issue for me lol
@@steveboshakis2751 Nice work🙌. Some of the models have gearing for accelerating and these are very responsive to a gear up kit. Kymco ZX and SYM Jet are a perfect example. When go fast parts are installed they over rev and then the gear kit has the perfect application.
Скажи пажалуста. Я хочу паставить 70куб целиндор на sr50r. 2t карб. Каленвал выдержит?
Привет, приятель, как дела?
Если коленвал и подшипники не изношены, то все в порядке. Если вы сомневаетесь, что коленчатый вал в хорошем состоянии, то да, его необходимо заменить. Установите новый кривошип, подшипники и уплотнения.
@@scooterstreetau огромное вам спосиба и за ваш труд и профессионализм. Вы человек от бога.
@@serzikpetrov9391 Так мило с твоей стороны, спасибо тебе большое, друг.
What about a yamaha aerox 100cc
The principles are exactly the same. If you remove your factory gears, count the teeth and calculate your final drive ratio. Once you have, have a look around to see what's available and plug those numbers into your final drive calculation, then compare to the factory to see what percentage difference each makes, and which will be appropriate for your setup😁
14:39 is faster top speed than 14:46. Hi you claim that it would result in a slower top speed ! Savi English man from the state's ?
Can help me please?
?
lol broused the comments & so many people are link F the math just tell me! Also probably just a aussie term but its not a diff - as in a differential. If anything its a gearbox.
👍