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Scooters - 50cc => Agility 50 => Topic started by: oswaldters on October 19, 2010, 10:08:27 PM

Title: Roller Derby
Post by: oswaldters on October 19, 2010, 10:08:27 PM
So I've decided to change the roller weights on the scoot while the temperatures are still conducive to working outdoors without freezing a finger off.  What can I say, I'm not allowed to do tuning in my living room!

I want to go with lighter weights since I do lots of stop and go driving and would like a little more oomph off the line.  I seem to recall that the stock weights are 6.5 gm - but am not completely sure.

Any suggestions on how light I should go with my derestricted by otherwise stock scoot?  I was thinking maybe 5.5 or 6.0.

One other question, if I have 5 gm and 6 gm roller weights, can I alternate them so I have 3 of each and get the desired 5.5 gm effect?

Or am I barking mad here?
Title: Re: Roller Derby
Post by: blue on October 19, 2010, 10:53:55 PM
bark  bark-------I would suggest going with 5.5 and keep the same weight all the way a round.
Title: Re: Roller Derby
Post by: oswaldters on October 19, 2010, 10:55:10 PM
Yeah, I am going unconventional here.

I only have 5 gm and 6 gm weights - hate to go buy more.
Title: Re: Roller Derby
Post by: blue on October 20, 2010, 01:38:12 AM
try 5 then if that dont do it for ya try 6 im thinking 5 might be to light not sure I tryed 4.5 and that was to light.
Title: Re: Roller Derby
Post by: Rianna on October 20, 2010, 01:58:32 AM
Somebody here just got some weights not too long ago. I'm thinking it was pedro. Not sure how much he paid for them, though, because I have no memory. lol
Title: Re: Roller Derby
Post by: oswaldters on October 20, 2010, 02:00:58 AM
Yes, you are correct - I remember that!

I also remember that Pedro put up the link to the seller so I'm checking that out now.
Title: Re: Roller Derby
Post by: pedro on October 20, 2010, 02:05:14 AM
http://cgi.ebay.com/ebaymotors/variator-roller-5g-6g-7g-Dio-GY6-50cc-139QMB-Moped-/230538717351?pt=Motorcycles_Parts_Accessories&hash=item35ad2da8a7 (http://cgi.ebay.com/ebaymotors/variator-roller-5g-6g-7g-Dio-GY6-50cc-139QMB-Moped-/230538717351?pt=Motorcycles_Parts_Accessories&hash=item35ad2da8a7)
Title: Re: Roller Derby
Post by: Rianna on October 20, 2010, 02:08:51 AM
I forgot about that link! :D
Title: Re: Roller Derby
Post by: oswaldters on October 20, 2010, 02:13:09 AM
Thanks Pedro!

The only issue is I think I need the 5.5 gm rollers.  If we can do the mix and match thing (alternating the 5 gm and 6 gm rollers) this would work. 

They're a really good price for 3 sets and includes shipping too. 

Where is Word at tonight  :-\
Title: Re: Roller Derby
Post by: pedro on October 20, 2010, 02:37:59 AM
I'd run 3x 5grams and 3x 6grams.  I tired various combinations when I was dialing in my variator last weekend.  Including mixing weights.
Title: Re: Roller Derby
Post by: oswaldters on October 20, 2010, 02:41:02 AM
That was my thought as well.

I've read various things about mixing variator weights, but it seems like it shouldn't be a problem as long as you alternate the 2 weights.
Title: Re: Roller Derby
Post by: pedro on October 20, 2010, 02:45:24 AM
Thats  exactly what I did.  I only put 5-6 miles on each different set of rollers before pulling it all apart and swapping in a different set.  I didn't notice any downside to running mixed weight sets.  I did place them inside the variator in alternating weights.
Title: Re: Roller Derby
Post by: art on October 20, 2010, 06:29:56 PM
  Over time they will wear unevenly and can stress out your veriator,but works fine for tuneing.
Title: Re: Roller Derby
Post by: pedro on October 20, 2010, 06:49:41 PM
Thats good to know.  Thanks Art.  Thankfully I was able to settle on all 6 weights being 7 grams.  I'll remember that in the future though.   ;)
Title: Re: Roller Derby
Post by: wordslinger on October 20, 2010, 11:12:00 PM
...art is exactly right...

..don't mix roller weights for the long haul..

 ;)

..i ran my a50 with 4.7 gram rollers and blew the fairings off most anything i came across...

..excellent take-off, and the top speed...well...that'sa whole nuther story...ya'll have already read..

..however, in addition with the rollers i did have malossi variator, a K&N filter, modified oem exhaust and around a 1.01mm main jet..1000 torque drive spring and 1000 fly clutch springs...


..5 or 5.5 gram rollers will do you great without all the other stuff...
Title: Re: Roller Derby
Post by: oswaldters on October 20, 2010, 11:17:16 PM
Thanks all for the input!

This is good to know.  I figure I'll go with the 5's and see how that goes.  If I'm not happy with it, I can mix the 5's and 6's and see if that works for me.  If so, then I'll go for the 5.5 gm ones.

I probably won't be able to get to it until next weekend at the earliest, but I'll let you know how it goes.
Title: Re: Roller Derby
Post by: wordslinger on October 20, 2010, 11:23:16 PM
..i think you'll like the 5's os...


..i ran 5.5s with a 1000 contra (torque drive) spring setup for over 10,000 kms and loved them...

......except for the slightly sluggish take-off...

..5 grams would have fixed that...
Title: Re: Roller Derby
Post by: oswaldters on October 20, 2010, 11:26:55 PM
Then I'll go with 5's for sure.  I need the good take-off since I have so many stop signs along the way.

Gotta be able to leave some of those Viper Strykes on stop line.
Title: Re: Roller Derby
Post by: wordslinger on October 20, 2010, 11:31:08 PM
...i love it when i leave those cabin-bound travellers in the dust and they have to kick it to catch up with me...lol..
Title: Re: Roller Derby
Post by: oswaldters on October 20, 2010, 11:46:49 PM
So you don't think dropping 1.5 gm per roller is too drastic a change?

Been reading some conflicting things about how much you should change the weights - especially if the scoot is still mostly stock.
Title: Re: Roller Derby
Post by: wordslinger on October 20, 2010, 11:54:02 PM
...best way to determine what roller weights work for your setup is by investing in a roller tuning kit...



Title: Re: Roller Derby
Post by: wordslinger on October 20, 2010, 11:58:45 PM
...i have these...
Title: Re: Roller Derby
Post by: oswaldters on October 21, 2010, 12:03:02 AM
I hope you aren't riding like that guy on the label...

I did see some kits like that in my internet travels.  Might have to invest in one.
Title: Re: Roller Derby
Post by: wordslinger on October 21, 2010, 12:04:17 AM
...if i put the right rollers in the ppl, it'll do that....

..might only run 40 mph top speed tho...lol..