Kymco Downtown 300i 0-150km/h Dr. Pulley

Kymco Downtown 300i 0-150km/h with and without Dr. Pulley sliding rollers (videos taken at the same part of the road). The sliding rollers improved the acceleration generally (0,5sec faster at 0-100). Top speed was also slightly improved.

Category:

Autos & Vehicles

Tags:

• kymco
• downtown
• nikita
• 300i
• dr.
• pulley
• sliding
• rollers
• 0-100
• 0-150
• km/h
• scooter
• acceleration
• modification
• tuning

[aesopppp]

δεν υπαρχει διαφορα στο 0-100....

[sibigr]

@aesopppp υπάρχει. όταν με τα pulley είναι στα 100, με τα μαμά είναι στα 95.

[Kelvin4292]

In my opinion this test is not that convincing because lighter rollers often cause better acceleration and top speed. There must be a third test with 14g stock rollers!

[sibigr]

@Kelvin4292 Lighter rollers cause better acceleration but reduce top speed. This test is done to show that dr pulley rollers improve acceleration but don't affect negatively the top speed,in some cases thay can increase it! If I used 14g stock type rollers the top speed would be less than the one achieved with 15,5g stock rollers.

[mazyngaz]

i'm italian, sorry for bad english... in the video is clear that downtown runs on differents routes...in the drpulley session you see vibrations...hovewer 1,5 grams in minus change prestations also without dr pulley rollers..

[sibigr]

@mazyngaz no, it's exactly the same route, the same distance on the same street, the vibrations are because I haven't fastened the camera very well. the advantage of dr pulley rollers from original rollers is that the dr pulley don't affect negatively the top speed.

[subwoffer]

did you change any other components ?

or just the rollers?

[donmistral]

While changing rollers for dr pulley's is there any need to modify other things ?

[CloudchaserShaconag]

That's good to know. I already have a 2009 GV250 and I'm considering trading it in on a D300i in a couple years

[TANWare]

My questions would be do the rollers adversly affect gas milage? When cruising at 55 MPH on stock rollers I usually see 5,000 RPM at 66 MPH about 6,000 RPM, does this then increase the cruise RPM as well?

[SRT480]

impressive! i am trying to get these for my bike now but seeing it in action is very cool

[koumatrix]

in how much seconds it catch 100km?