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  (#31)
GP Champ
 
shiphteey's Avatar
 
Posts: 3,234
Join Date: August 1, 2006
February 11, 2019, 03:40 PM

Quote:
Originally Posted by beatle View Post
70? I'd think 55 might be possible on these, but 70 seems impossible out of a 1/8 liter 4 stroke that revs to what, 7k?

67.6 mph bone stock Grom.


https://www.youtube.com/watch?v=_BVr_EPaPVc


Not hard to break 70 mph with a sprocket and pipe.


Gemini Motorcycles (Sterling, VA)
www.GeminiMotorcycles.com

ZX14: 222 mph
ZX12: 229.6 mph
ZX10: 202.8 mph

ZX9: 177.6 mph
ZX6R: 180.8 mph
EX650: 130.7 mph

EX300: 114.7 mph
EX250: 122.4 mph
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  (#32)
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Posts: 459
Join Date: May 21, 2015
Location: Springfield, VA
February 12, 2019, 07:21 AM

That's encouraging. I think it's only a matter of time before I pick one up. Despite my cheapness, I'll probably pass on the used Grom and just pick up a Monkey straight away. Not sure if it's worth trying to deal on one over the winter or if I should just wait until the spring. Looks like all of them are just selling for MSRP.


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  (#33)
whoa preppy......
 
Scot's Avatar
 
Posts: 7,057
Join Date: May 20, 2005
Location: Fredericksburg, Va
February 12, 2019, 07:33 AM

that top speed is atypical. You might hit that top speed, but a reliable, usually achievable speed is 55. I would base your traffic ventures on that as a top speed. At 67mph on level road, you're a fly's fart away from 60mph again.


2018 Z125 Pro
2016 Concours 1400
2018 Ninja 400
2013 Moto Guzzi V7 Racer
2019 Honda Monkey
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  (#34)
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Posts: 459
Join Date: May 21, 2015
Location: Springfield, VA
February 12, 2019, 08:00 AM

I'd be happy with 60. The parkway speed limit is 50 and would let me get most places. I am already dreaming of tossing the bike in the back of my truck and doing some of the routes on AppalachianBackroads.com this coming season, but it would be nice not to have to truck the bike everywhere.


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2008 Triumph Street Triple (track)
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  (#35)
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February 12, 2019, 10:26 AM

To be clear we are talking about fully tucking down. Yes sitting upright I'm sure upper 50s or low 60s.



I was quoting peak speeds so you have an idea of its potential. Much like most of the magazines don't publish peak speeds while sitting upright....





Well except for Gold Wings....Superhawks...and the like....


Gemini Motorcycles (Sterling, VA)
www.GeminiMotorcycles.com

ZX14: 222 mph
ZX12: 229.6 mph
ZX10: 202.8 mph

ZX9: 177.6 mph
ZX6R: 180.8 mph
EX650: 130.7 mph

EX300: 114.7 mph
EX250: 122.4 mph
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  (#36)
whoa preppy......
 
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Posts: 7,057
Join Date: May 20, 2005
Location: Fredericksburg, Va
February 12, 2019, 11:12 AM

We could see from the video. Also, your tucking down and my tucking down are very different. lol. Chicken wings keeps me from attaining the Shiphteey lean in. By like, a lot.


2018 Z125 Pro
2016 Concours 1400
2018 Ninja 400
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  (#37)
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February 12, 2019, 12:01 PM

urightrayray


Gemini Motorcycles (Sterling, VA)
www.GeminiMotorcycles.com

ZX14: 222 mph
ZX12: 229.6 mph
ZX10: 202.8 mph

ZX9: 177.6 mph
ZX6R: 180.8 mph
EX650: 130.7 mph

EX300: 114.7 mph
EX250: 122.4 mph
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  (#38)
Licensed Rider
 
Posts: 215
Join Date: August 3, 2007
Location: Spotsylvania, VA
February 12, 2019, 12:08 PM

Quote:
Originally Posted by Scot View Post
Shiphteey nailed it with the motor comparisons. I'll add that I prefer the motor in the grom. It's a little lazier and less manic.



I added a Yoshi cam and 170cc KOSO kit. I took the KOSO kit back out and went back to 125ccs. The BBK was great from a power perspective but had a fair amount of piston slap. It also overheated on a 70F day. I tried tuning it with an auto tuner, still predetonated, and decided no on it. I may revisit it. For now, it's 125ccs with a yoshi cam.



The Z125 is nice because it has an actual oil filter. The grom needs to have the clutch cover removed so you can clean the spinner and internal filter.

Also, the Grom is more comfortable to me once you deal with the seat issue and has a bigger aftermarket.
The Honda guy at the booth this weekend said the monkey and the grom shares the same motor so the aftermarket bits should work either way. Maybe worth some homework.
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  (#39)
whoa preppy......
 
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Posts: 7,057
Join Date: May 20, 2005
Location: Fredericksburg, Va
February 12, 2019, 12:30 PM

internal motor parts, indeed. Just not exhausts/intakes so much. Also, any body/suspension mods not so much either. Lots of that stuff is different.


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  (#40)
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shiphteey's Avatar
 
Posts: 3,234
Join Date: August 1, 2006
February 12, 2019, 03:47 PM

Word is Groms will break 100 mph when worked.


J got his to over 110 on GPS!


https://www.youtube.com/watch?v=48LrYCj1LpA


Gemini Motorcycles (Sterling, VA)
www.GeminiMotorcycles.com

ZX14: 222 mph
ZX12: 229.6 mph
ZX10: 202.8 mph

ZX9: 177.6 mph
ZX6R: 180.8 mph
EX650: 130.7 mph

EX300: 114.7 mph
EX250: 122.4 mph
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