Modern Vespa

are they limited

I get to 69mph and the scooter is holding back I use to have a Peugeot and it carried on going to 73mph and when I went downhill it did 80mph

but my piaggio even downhill wont go past 69mph it sounds like it kills the engine if I try go past 69

its similar engine to gts 125 and similar others

or is it the variator or clutch that's limiting the top speed

Hi, I believe the engine electronics has a built in rev limiter, and it sounds as if you`re hitting it! An indicated 69 mph on a 125 isn`t to be sniffed at though.

125cc engined bikes (scooter), just like any other newer bikes have a speed limiter, as hexatony is saying. The usual top speed range for most 125 bikes varies between 62 and 70mph. Some might go just a bit faster but not many. Remember that your Speedo won't be entirely accurate. An indicated 70mph is likely to be nearer 65-67mph actual. But this too can vary quite a bit and might be out by up to 10%, so indicated 70mpoh might actually be 63mph. What I'm saying is that your Peugeot Speedo was probably very inaccurate, registering very optomistically.

Seeing as how a new 300 only hits about 80ish mph 69 mph on a 125 is pretty impressive. Yes there is a limiter AFAIK but I don't think I'd want to go much faster on a smallie.

so if I upgraded variator do you think I could get abit more

also my speedo is accurate slightly which by wind its 2mph I think in uk I went past a speed sensor on the street showing 33mph when I was at 31

i know now they making scooters and 125 bikes quicker to 80mph

my old cbr 125 tuned did 80mph so real speed be about 78mph

i was going to do my test but i did a price check on a 300cc and it wasn't worth it so i decided to keep doing cbt every 2yr


what i find daft is uk should make all 125 least 33hp as certain scooters and bikes are slow for getting upto speed

funniest thing is when i had a Peugeot i had for 2yrs never cost nothing in repairs but since i had a piaggio in nearly 3yrs its cost me a lot so for so im starting to regret getting piaggio

Well my GTS 300 fully run in (6,000 km) won't do more than an indicated 120 km/h (75 mph), so I'd say you are doing pretty well already on your 125cc!
I suspect the electronic speedo on mine is more accurate than the older cable-driven speedos.
Cheers - Jim.

It's a rev limiter, not a speed limiter. You have to figure out a way to get more speed out of the same RPMs. Most of the methods that work well will cost you acceleration.

if you are hitting the rev limiter going downhill... try less throttle and more tuck!

Probably more than a few factors involved here, as other have chimed in with.

My own anecdote: fastest I've gotten up to to is a "true" 85mph (indicated just a bit south of 90, with a 2-3mph error rate), level ground to mild descending grade. This is with the Euro-spec flyscreen installed.

This. Malossi does a ignition control module that raises limit. Overrange variator if anybody makes one would also give you a bit more.

http://www.malossistore.eu/digitronic-dig-el-contr-for-veh-with-immobilizer-piaggio-carnaby-125-4t-lc-euro-3-leader-m28fm-5512341-pica125-M-P

That's the module I use in my GT200. It raises the limit by about 500 rpms, if I remember correctly.
We just had a module made for us that eliminates the limiter completely. It's pretty neat.I'm still playing around with it and will probably stick with the Malossi module for the Scooter Cannonball.

[quote="bluecloud" Overrange variator if anybody makes one would also give you a bit more.
[/quote]

I don't believe there is any space in the crankcase to allow the belt to go any further without rubbing.
Unlike some Hondas