I did 113 km/h (70mph) with 14/32 sprockets. Pcx 150 injector. 143cc cyl and a cam. Home made intake pipe (50mm) with airfilter. Yuminashi ecu(38770-K26-901R). The ecu ( bought it from MOTOSCOOT) Did an amazing change to the bike. No rev limit and you can modify the engine endless. No powercommander and other fuel controller needed. 120 € shipped from spain to Sweden. Recommended! Will try other sprocket setups later on and see whats best. Drive safe!
I’ve had mine going 72 three times down hill. A speed restriction comes on at 8,000 rpm in 5th. People that have had them faster have had a ecu reflash. The five speed is way better than the four speed for cruising.
Here in 2022 My 2014 Honda grom can hit 65 easily sitting straight up and 73 on a decline. I’m 6’3 156 pounds. I like the 5th gear on those newer models but man does it rob the power.
Why not use a GPS speed? I just got my 22 Grom and the Grom speedo indicates a 12% higher speed than the actual GPS measured speed. The GPS top speed of my stock Grom is 51 mph (81 km/h) on flat ground with no wind. These little machines would be so much more useful with at least a 150cc engine ... 125 is way too small ... I can't keep up with traffic outside of the city here in Canada.
Well, we did a true top speed on our dyno, but that had no wind or real rider load applied. For the road test we wanted to use a method that is repeatable by other folks so that they have a means for comparison. That is why we chose to go by indicated speed and not GPS.
I agree with it should be a 150cc. We had a yamaha zuma 125 scooter for the wife/rv and then we traded it for a yamaha 155cc scooter…. so much better in ride ability and being able to use it on secondary highways and was much more useful! It only went about 15 mph more, but so much better.
My friend who is a physics PhD told me humid air is actually less dense than dry air. Warm air is also les dense than cold air, so much so, in fact, that airplanes often swap out their propeller in spring and fall so the summertime prop takes a steeper bite since the air is thinner. Oh, fwiw, Andy moto got her groom up to 73 (she said 118 because she’s in Australia, you should check her channel out! ) but I think she said she’s 5 1 102 lbs.
Bart got one of the groms we have here to 75 with stock gearing, and mostly stock everything. This was in the draft of a car in a ridiculous tuck position for a 6'0" guy weighing 185 pounds.
I had a 150cc scooter that did 70 on a good day, tucked and I was 160 lbs. this seems to add up. I think an old two stroke could smoke em both, though.
I can do 113kmh (70mph) on my bone stock (not even a fender delete) 23 Grom on flat ground, and touched 116kmh (72mph) on a slight decline. I weigh 190lbs and had to full tuck for these speeds.
No matter the model, new bikes and cars always read a little high so that if the calibration messes up and reads lower, you're still riding relatively close to the limit
@@mclovin9151 Search it on google or something. It's not the way it is, and it is counterintuitive, but true. Hot air is less dense than cold air all else being equal.
1st off that's wrong...Hot air creates what we call in aviation High Density Altitude. High humidity does the same thing. The term High Density Altitude is actually the opposite of what you'd think. It actually means the pressure is actually acting as if it's lower than the standard (29.92 @ 15deg cel at sea level). Also performance is reduced due hot air and humidity. Hot air is thin and humidity (moisture) actually displaces the air even more. Less air means decreased performance. Most modern fuel systems compensate for that to some degree by leaning the mixture to maximize performance. When we have high temp and humidity here in Houston my take-off roll is much longer.
I enjoyed this video and the seeing the 2022 Grom in action very much. When I compare the 2022 to the 2014 and 2017 in your "which is better" video from 5 years ago, I see that the 2014, 2017, and 2022 Groms all have different appearing foot peg mounting brackets. The 2014 has two narrow bars on each side, the 2017 had a single thick bar on each side, and the 2022 goes back to two bars on a side, but the bars are now parallel. Are the differences simply changes in styling, or is there a mechanically important difference? For example, will the 2014 foot peg mounting brackets fit on a 2022 Grom? Is the mounting bolt pattern the same, and are there any clearance issues in mounting a 2014 bracket on a 2022? Thanks!
On the Grom, have you ever gone full tuck, both feet on passenger pegs, big down hill and going over 75mph with a high potential of wild life jumping out of the bushes? Kind of scary since I only had the clutch and front break to stop me.
Believe it or not I just slide and flipped my Grom running from cops through some back streets, lolol it was a 250cbr swap but now it’s idk, everything is ok as far as the frame, but my bike was running like shit and I couldn’t find what was wrong so I swapped my motor back to my original, which is yeah Grom motor with a koso 170 bore, and it’s still not right. It’s bogging still and can’t go past 40, idk what’s going on. My bike was catching 90 before, easy, 90 instantly, idk, can’t figure what’s wrong, I crashed at like 40, tried to make a turn and my bike is lowered, I scraped the ground and it banged and sent me sideways when it flipped.
This new Grom has a longer wheelbase than it's predecessors. It definitely helps keep it more stable at higher speeds than the previous generations of the Grom. But i can't tell you whether it will feel secure to you as that is a pretty subjective assessment and you may not not feel what i feel on the bike .
The stock tune is crap ignition wise, but for the small change in exhaust dynamics the closed loop of the ECU is good enough to keep it safe and have a small boost in power. We have since made many changes and iterations and aren't even running stock ecu
i just got my 23’ SP Grom about a week ago and i accidentally downshifted to 1st gear from 4th (thinking i was in 3rd) going around 28mph all i seen was it be red lined to the max and then i quickly shifted back up to second. What do you think would be damaged after that? It still runs smoothly the gears change smoothly and downshift smoothly so i don’t know if i should be concerned about it or not.
Will be fine, how did you accidentally go from 4th to first though? That's 3 clicks down. Did you just pull your clutch in and start downshifting multiple times? I wouldn't really go above 20mph first gear on a grom as that is basically hitting redline
I have a question for the grom community, i am 5 foot 11 inches tall and i weigh about 250 lbs, just looking to see if i could atleast see 55 mph with the grom lol, any info is helpful thank you in advance.
You will get to 55mph but if going up steep hills I’d expect 50mph. Mine is 22 grom but 450mile on her. I’m looking for an older benelli 135 as they hit 70mph easily unlike my grom
My red 2023's speedo is fast by 8km/hr at 60km/hr...just saying. I think you have the wrong bike if you're looking for speed. Its enough for me that when I ride my Grom, you feel like you're breaking the law just being on the road! Nanna is still going to scowl and pass you!
Top speed run? STOP SHIFTING UP!!! Thank you for making this but my God is it frustrating watching this video every time you start getting some speed you shift up... Unless it's bouncing off the rev limiter you leave it in forth if you're trying to get top speed
The 5th gear makes a noticeable difference with a few performance parts like E3 Diamondfire plug, ECU tune, freer flowing intake and full exhaust (and heatwrapped). The 5th gear also radically improves MPG, especially when fed more power. It's not just a taller top gear for higher top-speed potential and mpg, but the 1st 4gears are also lower and closer ratio for better acceleration. Surely you didn't buy a Grom (or Z125) expecting a rocketship, did ya? MPG is my #1 reason for wanting a Grom. I've done those mods on my Ninja 300, and noticed lots more power to bounce off rev limiter in stock 6th Gear @120, whereas before could only hit 111, 1500rpm shy of redline. The new 5speed is the best feature on the new Grom, because nobody leaves them stock! As a fellow Kawi brother, I'm sorry to say the Z125 has been outclassed and needs updating to keep up in the segment Honda owns! The 'Z' is a tad cheaper, and still great in its own ways, enjoy riding!
@@TSTindustries What I meant is that you are drafting in the video. I find on the interstate I can be ten bike lengths back (i.e. a safe distance) and still the vehicle (or vehicles) ahead breaks up the wind enough to reach and maintain higher speeds much easier. Maybe that is not technically drafting, but it's a real effect, and for me means on the occasional short trip of an exit or two on the interstate I can maintain highway speed (at least in the slow lane). Maybe it only works on divided highways, where a mass of cars are pushing air in the same direction?
Why would anyone buy this pice of junk gonna blow it up maxing it all the time lol i think its funny my crappy cruiser bike does this bikes top speed in 5 seconds for 3k you can buy a really nice used motorcycle why would you not do that instead of wasting it on this toy
The last word in your comment explains why - it's a toy. These are one of the best selling motorcycles for Honda. There are thousands of them in the wild. Countless people even have more than one. This bike isn't a "piece of junk", it's a toy that's fun and isn't meant to be taken super serious. It's also important to know that although you call it a piece of junk, you're watching videos on them...
I did 113 km/h (70mph) with 14/32 sprockets. Pcx 150 injector.
143cc cyl and a cam. Home made intake pipe (50mm) with airfilter.
Yuminashi ecu(38770-K26-901R). The ecu ( bought it from MOTOSCOOT)
Did an amazing change to the bike. No rev limit and you can modify the engine endless. No powercommander and other fuel controller needed. 120 € shipped from spain to Sweden. Recommended!
Will try other sprocket setups later on and see whats best.
Drive safe!
70mph is all you could produce with all those mods??
Full tuck and full throttle! The best way to ride a Grom!
I’ve had mine going 72 three times down hill. A speed restriction comes on at 8,000 rpm in 5th. People that have had them faster have had a ecu reflash. The five speed is way better than the four speed for cruising.
Or they were going down a very steep and large hill, gravity can pull that bike a lot faster than that
Hit 73 this morning - bone stock 22 model.
I’ve hit 70mph in a full tuck before I ran out of road on a 2022 grom with a yoshi . Felt like I could probably do more though .
This is the cleanest grom on the internet 🔥
Thanks!
Would love to see a windscreen put on and see if that helps with the mph top speed.
Here in 2022 My 2014 Honda grom can hit 65 easily sitting straight up and 73 on a decline. I’m 6’3 156 pounds. I like the 5th gear on those newer models but man does it rob the power.
I look at mine as a 4 speed with overdrive to save fuel around 50-55mph
Why not use a GPS speed? I just got my 22 Grom and the Grom speedo indicates a 12% higher speed than the actual GPS measured speed. The GPS top speed of my stock Grom is 51 mph (81 km/h) on flat ground with no wind. These little machines would be so much more useful with at least a 150cc engine ... 125 is way too small ... I can't keep up with traffic outside of the city here in Canada.
Well, we did a true top speed on our dyno, but that had no wind or real rider load applied. For the road test we wanted to use a method that is repeatable by other folks so that they have a means for comparison. That is why we chose to go by indicated speed and not GPS.
if you use the bicycle feature on google maps it will route around any major highways that have a speed limit higher than 50
@@kushpaladin that is a pretty useful tip
I agree with it should be a 150cc. We had a yamaha zuma 125 scooter for the wife/rv and then we traded it for a yamaha 155cc scooter…. so much better in ride ability and being able to use it on secondary highways and was much more useful! It only went about 15 mph more, but so much better.
66 on mines. full tuck, only mods cheap Amazon exhaust, 6 inch stretch N 2.5 real lowering link. Im 5’8 165. Love riding this thing around town
its like it just shuts off in 5th will it run 58 60 for long periods
My friend who is a physics PhD told me humid air is actually less dense than dry air. Warm air is also les dense than cold air, so much so, in fact, that airplanes often swap out their propeller in spring and fall so the summertime prop takes a steeper bite since the air is thinner. Oh, fwiw, Andy moto got her groom up to 73 (she said 118 because she’s in Australia, you should check her channel out! ) but I think she said she’s 5 1 102 lbs.
Bart got one of the groms we have here to 75 with stock gearing, and mostly stock everything. This was in the draft of a car in a ridiculous tuck position for a 6'0" guy weighing 185 pounds.
@@TSTindustries very cool. Thanks!
I had a 150cc scooter that did 70 on a good day, tucked and I was 160 lbs. this seems to add up. I think an old two stroke could smoke em both, though.
“Go baby!! Go!!”
I can do 113kmh (70mph) on my bone stock (not even a fender delete) 23 Grom on flat ground, and touched 116kmh (72mph) on a slight decline. I weigh 190lbs and had to full tuck for these speeds.
That's really good for the given conditions.
In exact same conditions since I live in Florida also I got to 63 into the wind.
Done 114km/h yesterday full tuck flat road fully stock bike
I wonder what actual speed was? GPS on the handlebars would be interesting.
No matter the model, new bikes and cars always read a little high so that if the calibration messes up and reads lower, you're still riding relatively close to the limit
@Future Corpse I'd assume it more than likely has either lost calibration then or has been corrected.
It’s a really nice motorbike u have. I want this kind of bike too
2:21 Might be counter-intuitive but cold dense air increases drag as your riding through it and hot humid air is less dense and causes less drag.
But cold dry air is not dense, hot humid air filled with water is dense
@@mclovin9151 Search it on google or something. It's not the way it is, and it is counterintuitive, but true. Hot air is less dense than cold air all else being equal.
@@bwxmoto ok i will
1st off that's wrong...Hot air creates what we call in aviation High Density Altitude. High humidity does the same thing.
The term High Density Altitude is actually the opposite of what you'd think. It actually means the pressure is actually acting as if it's lower than the standard (29.92 @ 15deg cel at sea level). Also performance is reduced due hot air and humidity. Hot air is thin and humidity (moisture) actually displaces the air even more. Less air means decreased performance. Most modern fuel systems compensate for that to some degree by leaning the mixture to maximize performance.
When we have high temp and humidity here in Houston my take-off roll is much longer.
@@muhammadsteinberg If I remember correctly cold air = more horsepower which means faster motorcycle.
Off topic the steering stem nut I need that in blue can you help me find it?
I enjoyed this video and the seeing the 2022 Grom in action very much. When I compare the 2022 to the 2014 and 2017 in your "which is better" video from 5 years ago, I see that the 2014, 2017, and 2022 Groms all have different appearing foot peg mounting brackets. The 2014 has two narrow bars on each side, the 2017 had a single thick bar on each side, and the 2022 goes back to two bars on a side, but the bars are now parallel. Are the differences simply changes in styling, or is there a mechanically important difference? For example, will the 2014 foot peg mounting brackets fit on a 2022 Grom? Is the mounting bolt pattern the same, and are there any clearance issues in mounting a 2014 bracket on a 2022? Thanks!
5 eller 4 växlad låda?
I've hit 73 with cheap Amazon exhaust fully tucked
I've had 75 mph outta mine but I was on a pretty steep downhill and got a tow from a van for the last 10 seconds or so
I got mine to 71 mph in 5th gear in a tuck flat ground,but I only weight 115 lbs
I'm 6'2" 356lbs and hit 78 last weekend. This bike is a missile if you know how to ride.
😂😂😂 This was NOT a professional rider on a closed course. This guy just got his learners permit.
@@TSTindustries Take it away. He don't know how to ride.
@@Tapport so your morbidly obese and go faster down water slides 😂
No way. Lol
78 Kilomoters per hour right??
Dude they look so fucking fun to drive!!!
Extremely fun!
On the Grom, have you ever gone full tuck, both feet on passenger pegs, big down hill and going over 75mph with a high potential of wild life jumping out of the bushes?
Kind of scary since I only had the clutch and front break to stop me.
This had me dead😂😂😂
Believe it or not I just slide and flipped my Grom running from cops through some back streets, lolol it was a 250cbr swap but now it’s idk, everything is ok as far as the frame, but my bike was running like shit and I couldn’t find what was wrong so I swapped my motor back to my original, which is yeah Grom motor with a koso 170 bore, and it’s still not right.
It’s bogging still and can’t go past 40, idk what’s going on.
My bike was catching 90 before, easy, 90 instantly, idk, can’t figure what’s wrong, I crashed at like 40, tried to make a turn and my bike is lowered, I scraped the ground and it banged and sent me sideways when it flipped.
Be careful what you post publicly.
Does the grom feel secure At those speeds
This new Grom has a longer wheelbase than it's predecessors. It definitely helps keep it more stable at higher speeds than the previous generations of the Grom. But i can't tell you whether it will feel secure to you as that is a pretty subjective assessment and you may not not feel what i feel on the bike .
You guys are ruining the stock tune with the full exhaust?
The stock tune is crap ignition wise, but for the small change in exhaust dynamics the closed loop of the ECU is good enough to keep it safe and have a small boost in power. We have since made many changes and iterations and aren't even running stock ecu
i just got my 23’ SP Grom about a week ago and i accidentally downshifted to 1st gear from 4th (thinking i was in 3rd) going around 28mph all i seen was it be red lined to the max and then i quickly shifted back up to second. What do you think would be damaged after that? It still runs smoothly the gears change smoothly and downshift smoothly so i don’t know if i should be concerned about it or not.
Will be fine, how did you accidentally go from 4th to first though? That's 3 clicks down. Did you just pull your clutch in and start downshifting multiple times? I wouldn't really go above 20mph first gear on a grom as that is basically hitting redline
I have second generation MSX . I test riding that but I reach 112 kmh top speed. What worng with you .... I think GORM and MSX .EU and Asia Export.
Our speedo reads in mph
@@TSTindustries ohhh .... Sorry bro ... My false 😅 .
Hey I know that road SR 472 right?
Yep!
I have a question for the grom community, i am 5 foot 11 inches tall and i weigh about 250 lbs, just looking to see if i could atleast see 55 mph with the grom lol, any info is helpful thank you in advance.
You will get to 55mph but if going up steep hills I’d expect 50mph. Mine is 22 grom but 450mile on her. I’m looking for an older benelli 135 as they hit 70mph easily unlike my grom
My red 2023's speedo is fast by 8km/hr at 60km/hr...just saying. I think you have the wrong bike if you're looking for speed. Its enough for me that when I ride my Grom, you feel like you're breaking the law just being on the road! Nanna is still going to scowl and pass you!
What about a OG grom!! Lol cuz that’s what I got!! Yo!
We kicked around a few of those back in the day. They are gone from our custody at this point.
74 no tuck, 4 gears - new versions are lacking.
You must weigh 90 lb and be going downwind
@@TSTindustries 165 and pretty steady day
Top speed run? STOP SHIFTING UP!!! Thank you for making this but my God is it frustrating watching this video every time you start getting some speed you shift up... Unless it's bouncing off the rev limiter you leave it in forth if you're trying to get top speed
This bike is for fun not for speed
This guy needs his license taken away looooool
@@Tapport we get it you ride a lot and are a professional and are better then everyone else.
My 186 holds 70 np
looks to be struggling to hit 70
2020 honda grom going down hill hitting rev limiter on four gear at 73mph.
I'm disappointed given the hype of the 5 speed... My 16 Z125 easily matched this 22 Grom.
I had a 16 z125 only up to 67 on the limiter I've hit 70 so far in the wind tucked
The 5th gear makes a noticeable difference with a few performance parts like E3 Diamondfire plug, ECU tune, freer flowing intake and full exhaust (and heatwrapped). The 5th gear also radically improves MPG, especially when fed more power. It's not just a taller top gear for higher top-speed potential and mpg, but the 1st 4gears are also lower and closer ratio for better acceleration. Surely you didn't buy a Grom (or Z125) expecting a rocketship, did ya? MPG is my #1 reason for wanting a Grom. I've done those mods on my Ninja 300, and noticed lots more power to bounce off rev limiter in stock 6th Gear @120, whereas before could only hit 111, 1500rpm shy of redline. The new 5speed is the best feature on the new Grom, because nobody leaves them stock! As a fellow Kawi brother, I'm sorry to say the Z125 has been outclassed and needs updating to keep up in the segment Honda owns! The 'Z' is a tad cheaper, and still great in its own ways, enjoy riding!
Its much easier to hit 70 when drafting.
It is...but it is also much more dangerous
@@TSTindustries What I meant is that you are drafting in the video. I find on the interstate I can be ten bike lengths back (i.e. a safe distance) and still the vehicle (or vehicles) ahead breaks up the wind enough to reach and maintain higher speeds much easier. Maybe that is not technically drafting, but it's a real effect, and for me means on the occasional short trip of an exit or two on the interstate I can maintain highway speed (at least in the slow lane). Maybe it only works on divided highways, where a mass of cars are pushing air in the same direction?
Can’t wait to get my Grom I work so close to home
So is this Grom going to be your commuter?
We have electric unicycles that go that fast 🙄
pretty slow my lil duke 200cc is cheaper and would kill the grom ,, the groms are cool looking lil bikes though
peccato si possa mettere un solo like...
Dang same speed as the 2017 SF. 5th gear unneeded. Wow. What a let down.
I will admit that we did see 70 a few times with the wind behind our back.
It’s definitely not a let down. It’s way better cruising than the old bikes
@@knifenates8747 keeping up with traffic is SOOOO much easier. That extra gear keeps you in the powerband which is awesome.
Extra gears don't mean extra speed, just gives more convenient power. Keeps you in the powerband.
@@SpaaaaceMaan 👆👆 this!!
this engine is too weak Honda should revise its copy
The engine is part of the minibike magic. Honda makes bigger bikes if you want more power.
Haha It’s a grom bro
Why would anyone buy this pice of junk gonna blow it up maxing it all the time lol i think its funny my crappy cruiser bike does this bikes top speed in 5 seconds for 3k you can buy a really nice used motorcycle why would you not do that instead of wasting it on this toy
The last word in your comment explains why - it's a toy. These are one of the best selling motorcycles for Honda. There are thousands of them in the wild. Countless people even have more than one. This bike isn't a "piece of junk", it's a toy that's fun and isn't meant to be taken super serious. It's also important to know that although you call it a piece of junk, you're watching videos on them...