Need Advise: LXV 125ie + 187 KIT Roller weight
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Hooked
2018 GTV300 sei giorni, 2012 LXV 125ie and V90
Joined: 11 Mar 2018
Posts: 216
Location: Eternal Spring Country/Guatemala
Sun May 12, 2019 5:06 pm quote
Hi everyone,
I am a bit confused on the correct weight of the rollers. I have a 2012 LXV 125ie injected with the malossi 187cc kit. What weight should I use?
Thank you!

Last edited by ValVitola on Mon May 13, 2019 4:11 am; edited 1 time in total
Hooked
2018 GTV300 sei giorni, 2012 LXV 125ie and V90
Joined: 11 Mar 2018
Posts: 216
Location: Eternal Spring Country/Guatemala
Sun May 12, 2019 5:10 pm quote
I did see this in the wiki, but not sure if because of the kit I should use a different weight. Thank you!

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Ossessionato
LXV 150 Midnight Blue (SOLD)
Joined: 06 Dec 2010
Posts: 2548
Location: Bangkok
Sun May 12, 2019 5:26 pm quote
Conventional wisdom says 85-90% of original for performance.

I had a LXV 150 so for me would be 10x .9 = 9g or 8.5
But for performance on a GT200 you need 10.7 x .85 = 9g.

But for the 187 kit with more HP you need to go up a bit so I think back to original 10g would work.

But remember your 125 has lower gearing than 150 and GT200

With a gear up kit
Quote:
The 8 gr. sliders really let the motor rev quickly, the 9 gr. sliders were too heavy.
http://modernvespa.com/forum/topic152637?highlight=187+kit

Depends on riding style/type and expectations

Someone else will be along shortly maybe with empirical info.
Hooked
2018 GTV300 sei giorni, 2012 LXV 125ie and V90
Joined: 11 Mar 2018
Posts: 216
Location: Eternal Spring Country/Guatemala
Mon May 13, 2019 4:18 am quote
I currently have 19x17- 8.7 grms. My impression was that I needed to go down to 8grms, That is my confusion. Not sure if because the kit, I have to go up. The vario is the original one.
Thank you on advance
Sponsor
Granturismo 218
Joined: 04 Feb 2013
Posts: 5064
Location: South Carolina
Mon May 13, 2019 6:03 am quote
What's it doing and what do you want it to do differently? When you start to modify bikes, there is no exact formula for weights in your variator. How much you weigh, where you are going to be riding, what else you've done to the bike are going to determine the weights that are ideal for you. If you are going to be going up and down mountains, and not hitting long straights a lot, you need different rollers than if you are sitting on a long straight road and trying to maintain a high speed.
Now that you've been riding it, make a change and ride it again for about a week. Decide if you like the difference in the way the bike performs, or you don't, and then you will know which way to go as far as heavier or lighter.
Hooked
ET4 187
Joined: 14 Mar 2017
Posts: 323
Location: Germany
Wed May 15, 2019 11:46 pm quote
ValVitola wrote:
I currently have 19x17- 8.7 grms. My impression was that I needed to go down to 8grms, That is my confusion. Not sure if because the kit, I have to go up. The vario is the original one.
Thank you on advance
Hello ValVitola, I have the 187 kit for my ET4. I do have the longer primary gear ratio installed though.

First I had 9g. Dr. Pulleys....not good.

I went back to the 8g. Dr. Pulleys I had originally....very good.

The scooter revs up a little quicker, better acceleration. Also, the top speed has not changed at all. Plus, slow cruising around the neighborhood, the lighter weights make a more comfortable engine performance. The gear changes quicker, so this is also a plus point to consider.

I recommend 8g. Dr. Pulley weights.

This is just my opinion, and what I've found out to be best for my weight and how I like my 187 set up.
Hooked
2018 GTV300 sei giorni, 2012 LXV 125ie and V90
Joined: 11 Mar 2018
Posts: 216
Location: Eternal Spring Country/Guatemala
Thu May 16, 2019 4:26 am quote
Thank you both!!
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