Aero performance question..

aerorob · Post by **aerorob** » Mon Oct 12, 2009 9:27 pm

Hey everyone, i am new to the forum and pretty new to scooters, i have some questions about my 1985 aero 50.
when i bought it it was sluggish and * while accelerating especially up incline, so i got a keli vari kit. The kit helped out aton with how the scooter got up to speed, and now i can easily cruise at about 42 gps confirmed. (i weigh 140)
My question is thats about as fast as it will go, downhill or not. i am happy with the speed, it just seems like there is more left even when im around 40. the RPM isnt all reved up, so i was wondering if there is anything else i could do to get a couple more mph out of my scooter, because i know it can with me on it.
thanks, Rob

drizzle · Post by **drizzle** » Mon Oct 12, 2009 9:31 pm

the stock gears limit it to lower 40's, unfortunately.

aerorob · Post by **aerorob** » Mon Oct 12, 2009 9:33 pm

thanks, and im guessing there arent gears for the nb50?

mr pibbs · Post by **mr pibbs** » Mon Oct 12, 2009 9:42 pm

You could try some rollers a little lighter and see if that moves the power band to a spot that can help you power through that ceiling.

42 gps is pretty good for an aero. In fact, i'm not sure how much better you can get, but 8g rollers or so might be worth a test. Are you running the 9gs that come with the keli? Stock ramp plate?

All in all, you are talking about squeezing a mph or so more out of there. The fact that you cant go any faster down hill makes me think that the stock borehas reached rev limits with the stock pipe.

Dio gears might be able to give you some more top end without needing a bore, but lots of work and not a lot of hard and fast answers. There are gears built for it, but they give a ratio of about 7.8:1 which is too tall for a stock bore.

hope this helps.

aerorob · Post by **aerorob** » Mon Oct 12, 2009 9:47 pm

thanks Pibbs. yeah im running with the 9g rollers it came with. stock ramp plate though. i might try the Polini ramp plate that comes with a few roller wieghts and try it out. If nothing happens im just happy that i have a reliable scooter that will go over 40 that is still 50cc..

mookie · Post by **mookie** » Mon Oct 12, 2009 10:28 pm

he's hooked. aftermarket guys go ahead. feeding frenzy.

Wheelman-111 · Post by **Wheelman-111** » Mon Oct 12, 2009 11:33 pm

Greetings:

Ack-tually, I can get you a couple MPH for $20 or so. That's only $10 for each MPH gained. In terms of the Speed/Dollar ratio, this is unheard of in all of Scootopia. All you need to do is....

You ready?

Buy a 90/90x10 rear tire. The MotorcycleSuperstore.com website has the Pirelli SL26 for just over $20 last time I bought one. It represents a 5% upgear compared to stock 2.75 tires.

If you have about $75, an incredible stroke of luck, and access to a heavy press you can install Malossi 67-6458 gear kit, available in any ratio you want. As long as it's 7.83:1. If you do that, you will need to bring a little more money to the table to produce the power you'll need to drive them. OK a lot more money.

Welcome. Your Aero is a classic and looks great there in the Boudoir. I take it you are single?

Mods for the '85 are just a bit more challenging than some scooters, but can be done. Feel free to ax for our help as you slide down the Slippery Slope of Modding. We're all here to help drag you down...

turtle13 · Post by **turtle13** » Mon Oct 12, 2009 11:41 pm

Wheelman-111 wrote:Greetings:

Ack-tually, I can get you a couple MPH for $20 or so. In terms of the Speed/Dollar ratio, this is unheard of in all of Scootopia. All you need to do is....
You ready?
Buy a 90/90x10 rear tire.

it may be a huge pain to mount on the rim, but the sl26's that wheelman recommended to me helped a ton in the handling dept. the only draw back is that your scoot does not sit as high on the center stand.

mookie · Post by **mookie** » Mon Oct 12, 2009 11:48 pm

hmmmn.. might just be a market for the side stand additions afterall...

Wheelman-111 · Post by **Wheelman-111** » Tue Oct 13, 2009 12:07 am

http://www.hondaspree.net/phpBB3/viewto ... all#p70304
I don't want to talk about it...

aerorob · Post by **aerorob** » Tue Oct 13, 2009 9:16 am

i would go to a larger tire, but i already have a 3.5, and that hardly clears, so unfortunately thats all i can do with that

Wheelman-111 · Post by **Wheelman-111** » Tue Oct 13, 2009 9:27 am

Greetings:

What brand of 3.50 tire do you have? They don't all fit and the 411 on one that does is valuable. Post it and I'll Sticky with Props. Snap a pic or two and achieve Scooter Immortality.

aerorob · Post by **aerorob** » Tue Oct 13, 2009 9:34 am

its just a kenda tube type 3.5 inch tire. to fit it you have to take off the little cylinder head cover and do a bit of cutting to the back of it where it would interfere with the tire. ill post pictures as soon as i figure out how to. its a tight fit.

Wheelman-111 · Post by **Wheelman-111** » Tue Oct 13, 2009 9:45 am

Greetings:

If your pics are saved on your current computer, click "Reply". Scroll down below the Submit button. Click on Browse. Find your pic. Click Upload Attachment. You can place the pic "Inline" with that button.

: AeroMetroWheel.jpg (299.09 KiB) Viewed 5315 times

That's a 90/90 which is wider but not as tall as the 3.5. Pirelli brand SL26 fit without mods.

Be careful opening holes in the cooling shroud. Should be no problem with stock cylinder but a BBK needs all the cooling air it can get, circulating correctly. Also imagine that tiny tire spinning at several hundred RPM. Centrifugal growth can make a tight fit tighter, even put on the brakes for you.

It can happen going around a corner so exercise caution or keep a spare pair of underwear in the glovebox.

devenex · Post by **devenex** » Tue Oct 13, 2009 5:59 pm

Wow, yet another sweet looking '85 Aero in Oregon! I'm afraid my poor Millenium Aero will be living up to its name as the junkiest looking BUT fastest (while still being 50cc) in the state

...if I ever get it finished

Good buy though, doesn't sound like you need to hear that from anyone now though. You've been infected with scooterphilia!

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