Author Topic: Cruising at 120 km/h  (Read 1953 times)

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dcolak

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on: December 16, 2020, 12:36:17 pm
Did anyone have a chance to try the meteor 350?

Is it true it cannot cruise at 120 km/h?

It has a big 350 cc motor, even 125 cc's can cruise at 100 km/h, why would 350 cc have problems cruising at 120 km/h?

Highway speed limit is in most countries 120 km/h. It is not safe to cruise on a highway if you cannot do at least 120 km/h.
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derottone

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Reply #1 on: December 16, 2020, 01:02:29 pm
Most 125cc bikes are high revers. Consequently they deliver a power output that's rather close to the meteor 350. Cruising speed, top speed are proportional to the power the bike delivers to the ground. Assuming they have the exact same air resistance the power required to increase speed increases exponentially in the atmosphere. (below supersonic atleast). In another words a bike that has double the horse power will go only about approx 25% faster.
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dcolak

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Reply #2 on: December 16, 2020, 01:05:55 pm
Most 125cc bikes are high revers. Consequently they deliver a power output that's rather close to the meteor 350. Cruising speed, top speed are proportional to the power the bike delivers to the ground. Assuming they have the exact same air resistance the power required to increase speed increases exponentially in the atmosphere. (below supersonic atleast). In another words a bike that has double the horse power will go only about approx 25% faster.

Is it true meteor 350 cannot cruise at 120 km/h  ???
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derottone

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Reply #3 on: December 16, 2020, 01:10:05 pm
Is it true meteor 350 cannot cruise at 120 km/h  ???

Most likely not. 120 km/h will probably be WOT, may not be as much fun to go full throttle all the time.
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dcolak

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Reply #4 on: December 16, 2020, 01:14:31 pm
Most likely not. 120 km/h will probably be WOT, may not be as much fun to go full throttle all the time.

So, how do you cruise on highways? You'll get killed.  ???
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dcolak

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Reply #5 on: December 16, 2020, 01:17:40 pm
So, how do you cruise on highways? You'll get killed.  ???

Just found this video:

https://www.youtube.com/watch?v=ZRIQpiFRb9A

It cannot reach 120 km/h, whoah, a 350 cc.

It looks like changing sprockets is in order, it has a long 5th gear that does nothing to reach 120 km/h.

What a strange decision, to make a cruiser you cannot use to cruise on highways, which is the definition of cruising.
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derottone

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Reply #6 on: December 16, 2020, 01:53:52 pm
So, how do you cruise on highways? You'll get killed.  ???

If the frame doesn't break and the wheels don't come off unlikely.  ;D

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AzCal Retred

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Reply #7 on: December 16, 2020, 04:35:37 pm
@ #5: "What a strange decision, to make a cruiser you cannot use to cruise on highways, which is the definition of cruising."
120 KPH = 72 MPH ; The Meteor makes about 20 HP. ; The Meteor gets about 86 MPG (37Km/L). {1Km/L = 2.35 MPG}
As Derottone already pointed out, speed is merely a function of HP & drag. ( 1 PS = 0.98632 HP )
Motorbeam lists top speed as 115 KPH or 69 MPH. That'll be on flat, good pavement, windless conditions.
Unless you are turning max HP RPM (6100) at 115 KPH, you'd actually need to gear down to increase speed.
Enlarge the final drive sprocket until you find the point where max HP RPM balances drag at top attainable speed.
And THAT will probably be unpleasant & buzzy on a single, so you'll end up putting the stock sprocket back on.
Historic rule-of-thumb says it takes about 30 HP to run 100 MPH (160 KPH) on an unfaired motorcycle.
From real world experience, a 30 HP motorcycle is reasonably comfortable at 70, windless & flat ground, with even some throttle left over.
The vaguely gynecological riding position of a cruiser is less aerodynamic than that of a "standard" motorcycle, so a cruiser takes slightly more power at a given speed compared to a standard.
Again as Derottone says, nothing bad will happen to the motorcycle at 72 MPH, it just runs out of "poop" at about 70.
Speed costs money - how fast can you afford to go? If you actually "need" to run 72/120+ for hours on end and have to have a new bike, save up another $2k USD and get the 650 Interceptor.
Otherwise, either learn to be happy with a 60-65 cruising speed or acquire a 500cc or larger used twin cylinder machine.
For myself, the wind buffeting at 75 isn't too much fun. Riding's a lot more pleasant at 55. Keep to the secondary roads & enjoy life more. Let that 86 MPG keep your money in your pocket.

https://www.motorbeam.com/2020-royal-enfield-meteor-350-review-test-ride/
Royal Enfield Meteor 350 Specifications
* Engine: 349cc, Single-Cylinder, FI
* Power: 20.2 BHP @ 6100 RPM
* Torque: 27 Nm @ 4000 RPM
* Transmission: 5-speed
* Top Speed: 115 km/hr (VBOX)
* Fuel Consumption: 37 km/l
* Fuel Type: Petrol
* Suspension: 41 mm Telescopic forks (Front), 6 Step Adjustable Twin Shock Absorbers (Rear)
* Tyres: 100/90/19 (Front), 140/70/17 (Rear)
* Brakes: 300 mm Disc (Front), 270 mm Disc (Rear)

« Last Edit: December 16, 2020, 04:41:56 pm by AzCal Retred »
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Nitrowing

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Reply #8 on: December 16, 2020, 04:45:30 pm
20bhp from a 21st century 350cc motor is pathetic. Insulting.
Despite RE having access to every innovation, machinery and experience they still feel this is acceptable?
Now, if they stated 10k mile service intervals and 30k mile top end rebuilds, I could accept such a poor power output.

The more I read, the more I see HD type brand worship.
No wonder we no longer have a motor industry


derottone

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Reply #9 on: December 16, 2020, 04:54:16 pm
20bhp from a 21st century 350cc motor is pathetic. Insulting.
Despite RE having access to every innovation, machinery and experience they still feel this is acceptable?
Now, if they stated 10k mile service intervals and 30k mile top end rebuilds, I could accept such a poor power output.

The more I read, the more I see HD type brand worship.

It's economy worship. 20hp for a low rever 350cc is ok, you want more power you got to rev higher and you get somewhat worse mileage. Primary target is the emerging markets as they say.

If the 350 sell well maybe they can make the KX happen, in a bit more legit way of course. The prototype looks interesting.
« Last Edit: December 16, 2020, 05:08:54 pm by derottone »
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Nitrowing

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Reply #10 on: December 16, 2020, 05:24:54 pm
It's economy worship. 20hp for a low rever 350cc is ok, you want more power you got to rev higher and you get somewhat worse mileage. Primary target is the emerging markets as they say.

If the 350 sell well maybe they can make the KX happen, in a bit more legit way of course. The prototype looks interesting.
Yeah, I do get it apart from building a brand new bike that isn't an equal to what the Japanese were producing 30+ years ago  :-[
No wonder we no longer have a motor industry


derottone

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Reply #11 on: December 16, 2020, 05:36:37 pm
Yeah, I do get it apart from building a brand new bike that isn't an equal to what the Japanese were producing 30+ years ago  :-[

The H'ness doesn't do much better than that and it's a Honda. And it has all the creepy features like a slipping piston. It's designed to meet certain market criteria.

Not my cuppa either but it will likely do well.
« Last Edit: December 16, 2020, 05:43:59 pm by derottone »
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Nitrowing

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Reply #12 on: December 16, 2020, 06:25:25 pm
The H'ness doesn't do much better than that and it's a Honda. And it has all the creepy features like a slipping piston. It's designed to meet certain market criteria.

Not my cuppa either but it will likely do well.
I'll guarantee the Honda will do double the mileage without needing attention though  ;D ;D
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derottone

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Reply #13 on: December 16, 2020, 06:50:53 pm
I'll guarantee the Honda will do double the mileage without needing attention though  ;D ;D

That could be true.  ;D ....however the sales are going to be over by the time, no one rides one bike only. There will be new models.
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Keef Sparrow

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Reply #14 on: December 16, 2020, 07:59:56 pm
20bhp from a 21st century 350cc motor is pathetic. Insulting.
Despite RE having access to every innovation, machinery and experience they still feel this is acceptable?
The Meteor is designed mainly for the Indian domestic market where it's performance on their roads poor is acceptable. Also, the Indian riders demand a machine which retains 'the thump' - meaning a long stroke motor and good fuel economy. Royal Enfield could easily produce a high revving higher powered 350 single if they wanted to, but it wouldn't sell on the home market as Indian buyers complain if their bike doesn't have the traditional old fashioned 'thump'. Royal Enfield will always make bikes mainly for the home market as that is where the vast majority of their sales are.
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