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Post by tour96se on Jul 5, 2011 18:51:16 GMT -5
3- 6g 50cc rollers
3- 17g 150cc rollers
A9 cam
15/37 gears
UNIfilter
50cc silvertone "performance"exhaust
gates belt
ngk plug
i initially switched from 17g stock rollers to 12g sliders, didnt notice much, esp when swithching gears. at top speed of "67" my rpms would barely touch 6k rpms. from what I read max power comes up around 7200. so I decided to throw the stockers back in mixed with some left over 6g's from my vento zip to get the rpms back up.....the difference is night and day up to a indicated 57...i'll do a top speed run tonight.
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Post by vindicated777 on Jul 7, 2011 1:06:49 GMT -5
I'm running 3 13g, and 3 9g rollers...maxing at 55mph...i wonder if i go lighter will i get a higher top end speed ie 3 8g along with the 13g...or try all 13g and see what happens....hmmm?!?!
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Post by Saber on Jul 19, 2011 18:38:24 GMT -5
Znen T-9 150 Interceptor
I weigh 195 plus gear and stuff for work.
Stock was 17 gram rollers up shift at 4000 rpm 30mph top speed 58mph
switched to 15 gram sliders up shift at 3200 rpm 25 mph top speed 62
switched to 14 gram sliders up shift at 3800 rpm 30 mph to speed 62
Waiting on 13 gram sliders
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Post by 2010iron883 on Jul 21, 2011 9:49:46 GMT -5
I have a 2007 kymco agility 125. I have stock belt , variator and also have 16,600 k on my bike. I just now changed my rollers to dr pulley 13g sliders. I gained take off and top speed. I used to hit 68 to 70 mph and now i can hit 80. I also did put a tiny tiny bit of graphite in my slider slots. i heard yea and no to this but ive had no issues. When i took my stock ones out they had what looked like graphite or it could have been belt dust i figure eather way that didnt hurt so surely a little graphite wont hurt. I do need to relace my belt thought.
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Post by scootninja82 on Jul 23, 2011 17:23:10 GMT -5
i have roketa mc-75-150.it came with 17g rollers.i put in 14g scooter ninja sliders.worked awesome for 2.5 weeks and then wore out.im not sure if dr.pulley sliders last longer.i use a 17g/11g roller combo,it seems to work well for now.i plan to order 13g or 14g rollers soon.i would stick with rollers,unless you can get durable sliders,because they do perform very well!
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Post by edfr on Jul 23, 2011 18:11:46 GMT -5
What matters is which weights will squeeze the belt so that it climbs as high as possible up the Variator. IN addition you can put the heaviest weights in and you will LOOSE top end speed. REASON is you also have to have ENOUGH RPMS that ONCE the weights squeeze the Belt up as high as possible that the RPMS will TURN the Variator Faster for more top end speed.
So you have to match the weights AND the RPMS to get the most top end speed.
So if your RPMS reach 6000 and the belt is as high as possible say with 14g weights and your doing 50mph. If you can get your RPMS higher with the same weights you will gain more top end because the Variator is now being turned faster.
Another way is to get a bigger Diameter Variator, bigger wheel will turn a smaller wheel more revolutions for every turn of the big wheel.
Or get taller tranny gears to turn the wheel more times per one revolution of the shaft.
Lefty
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Post by robertskappasig on Aug 1, 2011 20:45:35 GMT -5
Hi all! This topic seems to be beaten to death. That said, I shall still add my own findings. I ride an '09 Vino 125, and weigh a tad over 200. The Stock rollers were 14g and I replaced them with 11.5g slider weights. There was a noticeable acceleration and hill climbing improvement. That said, its a 125 so climbing hills still sucks. I disengaged my accelerator pump too, and that seemed to help with the engine bogging. The Sliding weights, in my opinion, were a very good purchase!
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Post by celm on Aug 3, 2011 10:50:56 GMT -5
what is the advantage or perfomance in using 2 differnt weights of rollers?
im a 200 lbs guy, i think i am at like 50 km/h and its at 7000 rpm. i want to be at sy 50 km/h with less rpms.what size rollers u recommend?
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Post by mbailey12001 on Aug 10, 2011 22:13:41 GMT -5
Just changed my stock 17g weights to new hocca 12g revs are higher, top speed same acceleration has increased. As far as I am concerned (If anyone cares) do a CVT tune up and stop!!! By the way I have a 150cc Milan. Life is good!!!!!!!
Peace
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Post by doug250 on Aug 15, 2011 18:13:49 GMT -5
Does changing the roller/sliders void a warranty?
Just got a new GrandVista and it comes with a 2 year warranty.
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Post by wildfire8 on Sept 15, 2011 17:34:14 GMT -5
I've got a new Hoca teflon variator...mixed 3 12s and 3 13s..max speed 55 well that's the fastest i've gone still with throttle left...amazing right..i'm thinking what can i do to make a bit more top end..maybe...62-65 mph..drop to all 12s? Then from there i have 8gram and 9gram rollers...too light maybe? Don't want the engine screaming at me!!! What size are your rollers for the Hoca Teflon Veriator? Are the the same as stock gy6 18x14? Just changed my stock 17g weights to new hocca 12g revs are higher, top speed same acceleration has increased. As far as I am concerned (If anyone cares) do a CVT tune up and stop!!! By the way I have a 150cc Milan. Life is good!!!!!!! Peace What size are your 17g? 18x14? Are they in good condition? How much you want for them? |
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Post by Doug in San Diego on Sept 15, 2011 21:52:54 GMT -5
What is everyone's thought on 9g weight?
My local shop swears that 9g is the sweet spot. Seems very light for a 150cc
Thought?
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Post by dubcity on Sept 19, 2011 18:55:55 GMT -5
Good info and good info. Jus got a 150T-26. It only has 95 miles on it now but I want some better top end speed. . The take off is crazy but falls off when it comes to top end. Its there a mileage preference to do the slider or roller change? Or can I go ahead and do. Thanks to all I'm new to the site and need a few parts as well. Need the floor mat for my feet which covers batter and the grab bar.
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Post by dubcity on Sept 20, 2011 10:16:51 GMT -5
Is there a certain tool we would need to lock the engine from moving? If so where can i get it at? thanks
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Post by playermike on Nov 5, 2011 0:12:39 GMT -5
Is there a certain tool we would need to lock the engine from moving? If so where can i get it at? thanks Power impact wrench......I got mine from Harbor Freights Tools |
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duane
Junior Dawg
Posts: 7
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Post by duane on Nov 11, 2011 13:11:43 GMT -5
scoot: 2007 Lance GS-R 150 Me: 200 +/-, +10-30 lbs of school stuff and tools. Stock: 14g, decent acceleration. Changed to: 11g great acceleration. 10g with racing variator, even better, just about as good as it gets. 14g with racing variator, good, better than stock, but 11g with stock variator was a bit better. in order of best acceleration, from slowest to fastest: 14g, stock variator --> 14g, racing variator-->11g,stock variator-->10g racing variator (best). My top speed was uneffected by any of these mods, with the exception of +1mph when I added the racing variator. Aero |
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Post by gysixxer on Mar 10, 2012 9:55:04 GMT -5
Rider = 240lbs
scooter = 150cc
Upgrades = BBK, A10 cam, Variator, 842belt, 30mm Carb, Intake, Exhaust, Rejet, CDI & Coil
Top Speed = 63mph
Swapped stock weights for Dr. Pulley Slider 10g and 14g mix in a NCY Variator. At the time i loved the accel. and the top end was 63mph. Recently i swapped out for some 9g Rollers, and noticed a huge difference. Faster take off and top end stayed the same 63mph. Did not loose any top end. ( I have a lot rollers i plan on tuning more later) Also gonna try my a12 cam and see if there is a difference as well...
I do not recomend the Mix of Sliders or Rollers. I dont think it makes a true difference....Just my .02
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Post by scoota spry on Mar 20, 2012 23:26:02 GMT -5
150cc
Running 14 g HOCO racing
135lbs
and very noticable Top End speed!!
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Post by skuttadawg on Mar 20, 2012 23:55:37 GMT -5
You can use a band wrench to hold the variator from moving when removing and installing the nut .
My Echarm had 12 rollers that had just started to develop flat spots at 5,500 miles and went with 12 gram Dr Pulley sliders . Well initial takeoff was a tad less , had a more steady climb accelerating and top end went up from 70 ( ECU limited ) to 75 mph . I would like to try 11 or 10s for faster takeoff since with EFI I smoke any with a carb and my Echarm is unsafe above 60 mph with such a wet noodle suspension and strong engine is nuts . I hate the roller rattle noise and sliders are much quieter , last longer and go faster with more gear variations of the CVT than rollers .
You can mix diff weights like 9 and 10s to balance out to be 9.5 for example . I had 6 gram in my 2T 49cc , tried 4 grams were too light as it over revved and lost top end so I mixed to make 5 and it worked better uphill and only a fraction less on top end . I am geared low but can wind up to 50 mph ( radar test said I am registering 4 mph faster on my speedo than the radar displayed ) at 8,500 rpms .
I am 200 lbs and I can hit 60 mph up a large hill with passenger on that is my size on my Echarm , but still sketchy above 60 with a passenger or alone as it has too much weight on the rear and the front skims around like a motorboat across waves
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Post by mcallisterdu on Apr 3, 2012 16:13:14 GMT -5
125cc generic chinese (not sure of actual manufacturer, title says Baldwin but I think its a Wildfire)
Stock 14g
Upgraded to 12g with stock variator- noticed huge acceleration difference, but seems like I lost 1-2 mph on top end.
175lb rider
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Post by Globs on Apr 3, 2012 17:07:30 GMT -5
SYM Joyride 200i evo:
Stock has 20x15 at 13.2g
Upgraded to 20x15 at 14.5g Dr. Pulley sliders.
Nearly 7kmh more speed, same acceleration, pulling away now closer to the max-torque and max power middle area of the revs. A more relaxed cruise, a worthwhile improvement. Will now top 120km/h on demand unless riding into a strong headwind.
SYM GTS300i evo:
Stock has 25x22 at 18g
Upgraded to 25x22 at 19g Dr. Pulley sliders.
Now cruises at 130km/h without issue, and has a much better pull away from the line and responds better to mid-speed acceleration. Much more balanced for the road now.
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Post by twiztedxtasy on Apr 5, 2012 15:20:04 GMT -5
Ill throw my results in here. I have a Short case 125cc tng Milano.
At first while my acceleration was amazing to 35, the engine was screaming when i reached 45.
i decided to do a larger variator as well as change my rollers to 12g, so i went with the hoca teflon coated variator, with rollers ( soon to be sliders ) after all was said and done, my rpms dropped quite a bit, and i barely lost any acceleration and my top speed easily hits 52+ gps verified.
While i did lose some acceleration, the biggest thing i noticed was that i lost a ton of engine braking due to the much lower rpms i was running. now my brakes feel really bad lol
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alandok85
Junior Dawg
'Fix it or die' scooter repair.
Posts: 11
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Post by alandok85 on Apr 5, 2012 15:55:17 GMT -5
Hey guys I weigh 300 lbs and near the weight limit for my kymco super 8 150cc, it came with an HP variator and 13gm rollers stock but I found that 11 -12g gives me better hill climbing ability and faster take off from a dead stop, however the lighter I go the harder it is to reach Max speed. At ten grams I lose a few MPH at top end and it takes forever to go from fifty five to 63.
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Post by photowiz on Apr 7, 2012 22:43:31 GMT -5
My wife and I got 2 Roketa MC75-150 scooters last year. Since then I have been making small changes. Here is the final result that gives us a great ride. I added an electric fuel pump (My gasket) I'm running 3 - 14 and 3 - 16 gram weights. The belt is standard. I've been running oil with boric acid for 2000 KMs. I have removed the stock air filter, added a K&N filter using PVC to make an adapter from the original tube and the filter. I use a PVC reducer to restrict the airflow. Now at 50 MPh or around 7000 RPM the engine slows down dropping 1000 to 1500 RPM while the speed increases. I have been able to hit speeds of 70 MPH without over revving. It cruses great at 50 - 55 MPH. My wife's has only been doing this since I have been using boric acid in her oil. We did a 75 mile round trip last weekend in the Texas countryside with no problems. It was a great ride. We are both running Bridgestone 130/70-13 on the rear and Pirelli 130/60-13 on the front. The scooters ride like we are on a cloud. For detailed info you may contact me. The additional saddlebags and windshield just add to look and ride. Enjoy your ride, they are the best. My facebook www.facebook.com/thedesignwizard |
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Post by mattcar27 on Apr 30, 2012 15:00:19 GMT -5
i have 17 gram roller weights im 150 pounds 5,10 i do not have rpm gauge so i can never tell if im hitting full power do you think bringing them to about 14 would give me better takeoff my topend is great i have gotten it to 68 gps so it flys but i want a little more power off the line how low does 17 gram weights hold the rpms......I have a no rev limit cdi also if that makes difference
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Post by jeffmwood26 on May 3, 2012 17:38:17 GMT -5
just put in some 13g sliders over my stock 11g rollers and i gotta say i like them 5 miles an hour gain on the top speed. My rollers already had flat spots after 600 miles just put in some synthetic in and its running better then when i put it together out of the box with a new carb of course Jonway MC_D150F
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Post by nuggzy on May 3, 2012 20:18:09 GMT -5
2011 150 cc. jonway, gy6 157qmj
135 pounds
13 gram rollers stock
i bought my scoot brand new of course started to upgrade the next day any bolt on upgrades i could do i did. list of upgrades, nyc cold air intake ,free flow exhuast,performance cdi,and coil,iradium spark plug, current stabilizer,re jet the carb from 105 to 120 main jet ,1500 clutch springs and 1500 commpression spring think i might try 2000 springs see what happens..for the variator i went to dr. pulley with 11 gram sliders from stock 13 gram rollers and kevlar belt and found not to much but better take off from stand still and alot more smoother ride through the rpms still alot of punch about 35- 40 mph. topping out at 65 mph .i have now went to 9gram rollers from 11 gram sliders to get a heck lot more take off and good cruise speed stil hitting 60 mph smooth..maybe lost a lil top speed .but get there alot faster .more experiments to come keep ya all posted..
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Post by takkddinnderay on May 5, 2012 2:36:40 GMT -5
Pardon me for being new to this forum. I however have a question. Newbie Question: So i have a 2008 ChuanL LB150T-12 What are the standard stock weights and rollers?  Main Question: I'm trying to upgrade it to carry two people. So i guess since i weigh 150 and my Girl Friend weighs 130 i would have to stock for a 280 LBS. person or would i stock for myself? I'm trying to remain on topic for this.  |
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Post by jogi on May 10, 2012 2:28:52 GMT -5
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Post by ltdhpp on May 10, 2012 20:01:31 GMT -5
I just installed the NCY CVT kit - the other parts skew my results I'm sure but this kit has 10g rollers ( had 13g in mine) and 1K torque spring. My RPMs used to putz around 5K until I got to 40-45, but now they zip right up to around 7k and stay there. Acceleration much improved. Noticeable hill climbing improvement. It gets to 40-45 a little quicker but I haven't taken it on a larger road yet to check top speed. Attachments:
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