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Author Topic: Move up the 250 to 300-400  (Read 457 times)

archaz

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Move up the 250 to 300-400
« on: December 27, 2018, 08:10:07 PM »

Hey Hyo,

Instead of being a day late and a dollar short, Why don't you increase the CC's to at least 300 to 400 in the GD250R or N. This would keep it competitive with the other brands even if it did not have their HP. I am not saying to stop making the 250 as it is needed in certain markets due to licensing on riders. You should be able to get a little larger engine into the same frame.

In the USA, Suzuki is kind of left in the dust with their GXR250 (sill being made for 2019) but I have never seen one being ridden, Everyone here is 300+

If you could at least bump the engine up to at least 320cc or however large you can fit into same frame you could move more bikes.
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Re: Move up the 250 to 300-400
« Reply #1 on: December 27, 2018, 09:39:19 PM »

They made a few concept bikes back in EICMA 2015, one was a GD450 and another one was a GT300R (275cc only though). Unfortunately all those bikes never saw the light of day, only thing that came from them are the wheels from the GT300R are now on the 2019 GT250R along with the ABS system, but nothing more.

They also gave the GV650 ABS and made a new GV250 that actually looks like the concept they had back then, the GV300.

They are moving very very slowly just to add ABS, who knows if and when they'll make the GV450 and it's R variant.
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beachpitcrew

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Re: Move up the 250 to 300-400
« Reply #2 on: December 29, 2018, 07:01:11 AM »

I don't know of anybody that has a 300 or 400
In the US market. There aren't any license restrictions in the US so why not just use a 650 ?
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beachpitcrew

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Re: Move up the 250 to 300-400
« Reply #3 on: December 29, 2018, 08:22:43 AM »

 PS: I would really like to see one of those GD 250's that are in the USA. Could you direct me to a dealer that has one ?
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archaz

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Re: Move up the 250 to 300-400
« Reply #4 on: December 30, 2018, 04:43:58 AM »

To find GD250R just search GD250R for sale. Usually found on Autotrader or cycletrader.

www.classiciron.com in Fredericksburg, VA has best prices so far. Some dealers still trying to sell for hih 3K to 4K. I don't think I would pay more than 2,500.00 for a 2017. Most are technically used and have only a few miles on them (taken from another dealer's overstock or unload) As such, they have NO WARRANTY from KRMotors. Warranty does not transfer unlike every other motorcycle brand. Kind of a scam I think.
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AJC650

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Re: Move up the 250 to 300-400
« Reply #5 on: December 30, 2018, 12:06:00 PM »

A lot of the mainstream manufacturers are producing bikes in the 300-400cc market now, either with new machines or uprated 250 engines - Kawasaki 300's, BMW 310's, KTM 390's, Royal Enfield Himalayan 400, etc., and even some of the Chinese manufacturers are heading that way, so it could be a good market for Hyosung to look at.....

That slight increase in engine size offers a bit more power for beginners, and a lighter bike that experienced (but older) riders can downsize to without too much lost performance, although for me the Honda CB500 range is an even better option - slightly lighter, slightly smaller, but with almost no loss of performance....which is why I now have a CB500X!!  :P
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Cloud

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Re: Move up the 250 to 300-400
« Reply #6 on: January 04, 2019, 04:22:46 AM »


The v-twin has technical limitations. The cylinders are short, so the maximum length of the stroke has been exploited in the 275cc engines. More is theoretically possible, but any extra stroke would have to come from shortening the piston skirts, to allow crank clearance. That has potential detriment to long-term reliability. The other option is to bore up, which again has potential, but requires thinning of the steel bores in the cylinder assembly. Enlargement of the cylinder casing to accommodate wider steel cylinder sleeves isn't easy or simple because of the location of the head bolts. If they were to be spaced further apart, the crank case would have to be re-designed for the wider bolt pattern. As for the heads it may be possible to use the 250cc heads, but for suitably larger valves, it may be necessary to change things other than just the valves.

It's possible but big changes need to be made, to keep the engine a reliable production-quality unit.
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archaz

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Re: Move up the 250 to 300-400
« Reply #7 on: January 04, 2019, 07:24:57 AM »

I was thinking more of the single cylinder than the twin, however, they do make the twin in a 650 which uses the same frame as the GT250R so it should not be a problem to fit a 400 in there. Unfortunately, that bike is just too large.

I would think they might be able to go as high as 325-350cc on the GD250R frame. I am not an engineer, so I don't know how much space is available.

Going to try and change mine to GP shifting tomorrow. I will let you know how that goes. ::)
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LX_SS

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Re: Move up the 250 to 300-400
« Reply #8 on: January 04, 2019, 07:33:07 AM »

I was thinking more of the single cylinder than the twin, however, they do make the twin in a 650 which uses the same frame as the GT250R so it should not be a problem to fit a 400 in there. Unfortunately, that bike is just too large.

where does this come from ??? every single one ive seen is a different frame
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umop-ǝpisdn

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Re: Move up the 250 to 300-400
« Reply #9 on: January 04, 2019, 11:07:32 PM »

250 and 650 do not share a frame. They tried to put a 650 in the 250 and there was so much flex in the chassis it was unrideable.
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