Roller weights or sliders again

[jdowpe]

Genuine Buddy 50.
Not a 125 which appears to get most of the talk in the forums.
I'm sorry to bring it up again but apparently weight and sliders vs. rollers is not a science but an art.
I have the 50 and everyone is generally impressed with its acceleration, but being a tinkerer, I want more. If I am correct, the 50 uses 8.5g rollers from the factory. I purchased 8.0g sliders based on research in this and other forums.
I don't believe I got anything from it but higher RPM once I am moving. I don't feel the cutover to the variator from the centrifugal clutch like I used to. You know the RPM drop that seemed to start pulling? I believe this small change took me out of the sweet spot. Top speed about the same.
Could 0.5g really take me above my sweet spot in the engine? What if I go the other way to 9g-9.5g (the max available), will I see a big drop in acceleration?
I guess what I'm looking for is other's experience so we can build a database on the 50's, seems to be a lot already for the 125's.
Today I would say the original setup from the manufacturer is better then what I tried based on research. Figures, they built it!
Anyone have better data?
Thanks so much,
JIM

[bigbropgo]

Not sure if you have browsed through the rattler/rough house part of the forum. But the buddy 50 and rough house share the same motor.

[bluebuddygirl]

My understanding is the weight differences change performance. The only real advantage of sliders is they last longer. Because they do not roll, it is not important that they stay round, and roller weights tend to develop flat spots and then stop working the way they are supposed to.

[jdowpe]

I have learned that the original Buddy 50's were shipped with 8.8g rollers. Newer ones ship with 8.0G. My local dealer suggests 7.0g rollers/slides with 10 pound contra spring for best overall performance. I'll try it and post. He says the standard out-of-the-box setup is for best fuel economy and reliability.

[rick71454]

http://www.unionmaterial.com/rollerweight6.htm

Hello BuddyLand:

I found out that the company Union Materail Company LTD in Taiwan makes the Dr Pulley products. That link above is an animated video showing how Dr Pulley sliders work as compared to regular round roller weights.

Beside a slower wear rate on the sliders, they also push the variator to a higher gear ratio, which would or should equal more top speed.

If you can buy them locally, you can order them from this nice company Buggy Parts NW, located in Albany Oregon. Check out their website. The have instruction videos and are very helpful by email and phone.

www.buggypartsnw.com


Thanks
rick71454

[ender07]

If you really want more top end and acceleration without going up to a BBK 70cc kit then try the Genuine Stage 1 Performance Kit. It is a really nice set if you only want bolt-on type upgrades. If you don't want to drop all the money on the exhaust you could upgrade the pieces individually but unless you have the exhaust for the higher powerband you might get more acceleration but not the top end and probably more wear on your belt.

Initially I got the 6.5 gram rollers then I got the 2000 RPM clutch springs and lastly I got the 1000 RPM contra spring when I installed the stage 1 kit. I moved to 5 gram rollers when I got the full kit installed.

[brianwheelies]

Based on other forums, you want to go with same weight sliders, possibly .5 grams more.

Same weight will give you slightly higher rpm everywhere as compared to stock. .5 more will give slightly higher rpm at take off and be similar to stock everywhere else.

There is more friction on the slider so it takes more weight to get it to move like the rollers.

That increase in friction is what causes that smoother transition of the rear pulley.