Modern Vespa

Do I need to reset the ASR after putting a new rear tire on my 2017 300GTV? I suspect the answer is yes but then the question is how.

I found several suggestions on how to do this on a 300GTS and each involve the ASR switch on the right handlebar. Well, my GTV does not have an ASR switch....

Several online searches on this came up empty.

Thx in advance

Don't think that GTV has ASR so nothing to calibrate

Good question. I had assumed it did because one of the warning lights on the dash includes the 'ASR' letters.....?

No asr on a 2018 i put Some 13 inch on it

Just found the right ScooterWest video to answer my question. Adding the link below in case someone else is looking for how to do this.

There are two parts to the procedure:

Step 1: Initiate the calibration mode indicated by the flashing ASR light and
Step 2: Go for a short ride at a steady, specific speed until the light stops flashing.

According to Robot, ASR and its calibration procedure were introduced for 300 models in 2015. The separate ASR switch on the handlebar was added in 2018. At that time, the steps on how to initiate the calibration mode also changed.

Here is what he describes (starting @5m43s and continued 8m21s) for the 2015-17 models:

Step 1: Start the scooter. ASR light will turn off.
Step 2: Turn off ASR by pulling on and holding in a brake lever and pushing (and releasing) the start button once. The ASR light will now come on steady.
Step 4: Pull in and hold the brake lever again and then push and now hold the start button until the ASR light starts flashing. FYI: Mine started flashing after about 5s. When the light starts flashing, you can release the start button as well as the brake lever.
Note: If you don't hold the start button in until the light flashes, you simply turn ASR back on (light off) and not enter the calibration mode. So you need to hold it in until the light flashes.
Step 5: Ride the scooter at a steady 20mph speed until the ASR light stops flashing. FYI: Mine stopped flashing after about 200ft.

And just like that, the calibration is completed

Thank you Robot and ScooterWest!

Note: He only talks about 300GT"S" models in the video but, as demonstrated, my 2017 GT"V" has the same system and uses the same steps as the 2015-17 GT"S" models.

Must be a USA thing

Interesting.... I did not know either that there are regional differences like that. Thanks for the feedback.

by the way, the user manual for my gts does say how to calibrate the asr. did you check your gtv manual thoroughly?

No. Unfortunately I have misplaced it. Tried finding a copy online but no luck. That's when I decided to put the question here on the forum.

enter your VIN and email here and you can download the correct manual for your model

https://manuals.vespa.com/

It worked, thank you very much for that link. I now have the manual and it does describe the process.... 👍

Supertjeduc - where did you get the screen for your GTV? It looks great!

Dealer , is the screen for a new gtv , painted it with a spray can

Aha - so the screen for the new GTV fits the older GTV? Super