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Curious where everyone is from , for altitude. Down here in Texas I can do 63 on flat while aero tucking (w/headwind) and i wieght 215... just wondering if altitude has anything to do with it.
 
160 pounds...58mph sitting straight up. Bone stock. 25 miles on odo. Hearing that a $400 exhaust and a $120 intake only gives roughly 3mph makes me regret my order.
 
30 miles brand new bike
I weigh 230lbs

flat ground hit 62mph


I think I did 63-64 down steep hill but at that point I had 100 miles on it and didn't want to push it too hard since its still in break in

I dont think it will go any faster then it is now, but that was what I was expecting from it anyways
 
Almost 200 miles on mine and in a full tuck down a hil got 65mph out of it. On the flats I'm getting between 59-60mph. When I go out riding with my son on the back we normally get to about 55 or so on flat.
 
So I have close to 200 miles on mine - 3/4 of which was the first day getting it home. My fiancé has had a grom for about 4 months. A lot of times we would have two grooms to mess around on - slipstreaming and racing - I had no issue getting one of those up to 74 mph and pretty much winning all the time since I am 50 lbs lighter. Now the pro is a different story- I've had that thing pinned on a long down hill and can not get past 68. It does kick off which I'm told is a rev limiter - but I have really tried- I ride back roads so I have the space and its not happening...at least not in its stock condition
 
A stock 125 cc engine will only yield so much power, just as a 50cc, 150, 250 or 500cc will. My 2017 ProZ125 performance is very compatible to our 2004 Yamaha 125 Vino with some 17,000 miles on it. I only have some 75 miles on my Z so far. Top Speed is based on Rider's Weight, Type of road (flat, hilly, new pavement, rough pavement), wind speed and direction and a variety of other items such as tire pressure. Our Vino may reach 63 mph on a steep downhill run and you should find the Z in the same range. So you see, Nobody would publish a Top Speed based on such differing conditions....
 
I've got a few small mods but I'm getting about 67 mph, GPS confirmed at about 9.8-10k on a flat, full tuck. Tested it last night at around midnight as it was much cooler. (I live in TX) running slightly bigger tires, intake/ full exhaust system, Bazzaz Zfi and 15t drive sprocket if that's helps. I'm 5'8, 180.
 
I'm 6 foot 270 lbs and I can get my Z up to 63 on the flats and 66ish down hill.

My Z now had around 250 miles on her so I can cruise between 58 and 62 depending on the wind.
 
I've got a few small mods but I'm getting about 67 mph, GPS confirmed at about 9.8-10k on a flat, full tuck. Tested it last night at around midnight as it was much cooler. (I live in TX) running slightly bigger tires, intake/ full exhaust system, Bazzaz Zfi and 15t drive sprocket if that's helps. I'm 5'8, 180.
even with 14t sprocket u can hit 67mph..I did try that 15t didnt give me any extra top end result even in downhill..but missed out alot on torque power..thats why decided to put back my stock 14t that way I can do up hill with no problem..
 
even with 14t sprocket u can hit 67mph..I did try that 15t didnt give me any extra top end result even in downhill..but missed out alot on torque power..thats why decided to put back my stock 14t that way I can do up hill with no problem..
Same here. I went back to 14.
 
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