05-09-2024, 12:15 PM | #16 |
Join Date: Jan 2018
Location: NC
Posts: 230
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Orion RXB 190L
The Orion RXB 190L is about as close as you can get to what you’re looking for, but again, it’s the 5 speed ZS190 engine, not a 6 speed. It’s street legal and powerful (@ 16HP stock; some say 18) and only 178lbs, but again, it’s street legal pit bike with a dirt bike seat and essentially what is a racing engine. ZS190 engines are known to be higher maintenance and finicky (i.e., starter chains breaking).
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05-09-2024, 06:08 PM | #17 |
Join Date: Sep 2022
Location: Ohio Valley
Posts: 745
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I can't help but think that if you consider how much work is actually done for the amount of fuel consumed, they are all incredibly inefficient. Is that a fair statement?
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2022 Hawk 250 |
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05-09-2024, 08:50 PM | #18 | |
Join Date: Aug 2013
Posts: 290
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Quote:
If you compare it to a roketa mc 05 127, or a Grom, both getting well over 100mpg, any bike will look poor in comparison. The first bike being geared very aggressively for higher mpg/lower rpm per mph. The Vader 150 is quite poor in it's gas mileage. Granted, I ride it at 6k rpm most of the time, and get a solid 60mpg out of it, while it gets closer to 80mpg when keeping it between 3 and 5k rpm. This engine should be able to do 100mpg easily at 40-45mph (doing ~ 4k rpm. A lot of the China bikes have lower performance when they're: a- Air cooled, and, b- not fuel injected. Mainly because they'll run a pretty low compression ratio. If there was only an easy way to increase compression ratio on pushrod engines... Especially people in colder regions will benefit from this (higher gas mileage, same or better performance). |
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05-25-2024, 10:06 PM | #19 |
Join Date: Aug 2013
Posts: 290
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Seems like another contender (5spd) is the magician 250.
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05-25-2024, 10:20 PM | #20 |
Join Date: Aug 2020
Location: Australia
Posts: 1,407
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there are reports of 100cc bikes in India getting 100kmpl/235mpg.
But that's India. I can't say the models off the top of my head but that 100cc segment is cutthroat over there... You would not be going particularity fast by western standards. |
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05-26-2024, 09:37 AM | #21 | |
Join Date: Aug 2013
Posts: 290
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Quote:
A 4 stroke carbureted bike, ideally reaches up to 120, and that's with heavy overgearing. Fuel injected bikes can reach up to 150mpg, because they can lean out the mixture so much when power isn't needed and load is low. So, reaching 200+mpg, may be possible on a mountain trail downhill. |
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05-26-2024, 02:08 PM | #22 | |
Join Date: May 2021
Posts: 355
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Quote:
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05-27-2024, 02:49 PM | #23 |
Join Date: May 2021
Posts: 355
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Ok since no response I assume it’s the problems that I’ve seen on YouTube about this bike. Shucks this looked like it would be a great bike
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05-27-2024, 06:22 PM | #24 | |
Join Date: Aug 2020
Location: Australia
Posts: 1,407
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Quote:
https://www.chinariders.net/showthread.php?t=33943 |
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05-27-2024, 07:07 PM | #25 |
Join Date: May 2021
Posts: 355
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Orion Powersports RXB 190L Long boring pissy rant, on You Tube from Joe B. is what I was thinking when I posted.
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05-27-2024, 07:48 PM | #26 |
Join Date: Aug 2020
Location: Australia
Posts: 1,407
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Seems decent enough. There are some quirks with the ZS190 that should be addressed.
The starter chain is typically shipped dry and can snap. The shift star cog has a habit of popping off and should be looked at. But otherwise seems like on ok 'big pitbike' for the street. I would look for a vertical engine frame alternative though as this will open up far more engine upgrade options... horizontal engines have their place...So if its a platform you prefer then realize the zs190 is about the peak with racing options squeezing a little more... https://www.orionpowersports.com/ori...embled-tested/ |
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05-27-2024, 09:33 PM | #27 | |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,624
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Quote:
https://www.jtsprockets.com/catalogue/sprocket/JTR210/ You can see if this matches the boltpattern on your EX.
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-NOS 2020 KTM 250SX (2-stroke motocross) |
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05-28-2024, 06:50 AM | #28 |
Join Date: Aug 2013
Posts: 290
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I just looked at the KLR250 and the XT250, and wonder if, and how much better their performance is than the Chinese bikes?
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05-28-2024, 07:08 AM | #29 | |
Join Date: Jan 2020
Posts: 277
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Quote:
A buddy of mine has the previous RXB150L. The MCO did indeed say "motorcycle." It should theoretically be street legal but my state gave him some static over not coming with a chain guard from the factory and it also arrived without a license plate mount or plate light, both of which we had to fabricate. That wasn't too tough. The seat is a plank. You may as well ride it standing up, or you should invest in a pair of those padded undershorts for bicyclists. The reason it's not a big seller is probably because, for the 150 at least, it is comically tiny for adult riders and is also geared/powered so that it maxes out at a screaming 45 MPH. It is also very squirrely on pavement above 40. It is not fast enough to be safe to ride on anything but neighborhood streets in wide swathes of the US, where if you are not capable of doing 65+ MPH at the drop of a hat you will be run over or blown into the weeds by a raging Karen in an Escalade. |
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05-28-2024, 09:54 PM | #30 |
Join Date: Aug 2013
Posts: 290
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I figured, a Japanese 125 equals a Chinese 150, and a japanese 150 equals a Chinese 250.
Even most Chinese 250s have trouble reaching 70mph, while my Honda rebel 250 could top out at just over 90 indicated (past the speedo max) under ideal conditions, but still wasn't good enough for highways in my opinion. Especially not with a headwind, when it would slow down to a measurly 60-65mph. |
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