Post 213
Pure class
Pure class
1250 it is !
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Deleted account 191119001
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Can Gilles better that, calling Gilles
Don't bother, he is still struggling to change gears, don't even mention diesel. Poor bloke
Deleted account 191119001
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Don't bother, he is still struggling to change gears, don't even mention diesel. Poor bloke
Mountain not being kind then...........
Mountain not being kind then...........
It was a bit before you joined here ..... long story and another epic thread.
Deleted account 191119001
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Back to the 1250 bike then, so anybody got any spy pics, maybe some of the covert trained riders.........
To all you technical geniuses...It you look at a bike from above a BMW boxer has a crankshaft that goes North-South straight with the driveshaft.On a bike like this a driveshaft has less parasitic loss than a chain.You can get that number from manufacturers claimed hp figures and real rear wheel hp numbers on a dyno.
On a shaft driven bike with a crankshaft that goes West-East the power obviously has to be redirected by a 90 degree geardrive that costs more power than chaindrive would because the chaindrive does not need a 90 degree bevel drive on these applications like inline 2,3,4,6 cylinder engines...
I hope that was not too hard to understand...
Back to the 2019 R 1250 GS...due out in the first week of October in cologne...
The other boxers will be released a month later in Milano as my uneducated guess as all get the new engine for 2019 I heared...only the new R 1250 S might get the full 145-160 hp treatment as rumors say...
Which is totally o.k. with me as long as we get a GS with 17 inch wheels straight from the factory in Berlin...
In black,with black,frame,engine and wheels...
On a shaft driven bike with a crankshaft that goes West-East the power obviously has to be redirected by a 90 degree geardrive that costs more power than chaindrive would because the chaindrive does not need a 90 degree bevel drive on these applications like inline 2,3,4,6 cylinder engines...
I hope that was not too hard to understand...
Back to the 2019 R 1250 GS...due out in the first week of October in cologne...
The other boxers will be released a month later in Milano as my uneducated guess as all get the new engine for 2019 I heared...only the new R 1250 S might get the full 145-160 hp treatment as rumors say...
Which is totally o.k. with me as long as we get a GS with 17 inch wheels straight from the factory in Berlin... In black,with black,frame,engine and wheels...Deleted account 230523001
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No, it does not.
Troppo
Bemused observer
To all you technical geniuses...It you look at a bike from above a BMW boxer has a crankshaft that goes North-South straight with the driveshaft.On a bike like this a driveshaft has less parasitic loss than a chain.You can get that number from manufacturers claimed hp figures and real rear wheel hp numbers on a dyno.
On a shaft driven bike with a crankshaft that goes West-East the power obviously has to be redirected by a 90 degree geardrive that costs more power than chaindrive would because the chaindrive does not need a 90 degree bevel drive on these applications like inline 2,3,4,6 cylinder engines...
I hope that was not too hard to understand...
Back to the 2019 R 1250 GS...due out in the first week of October in cologne...
The other boxers will be released a month later in Milano as my uneducated guess as all get the new engine for 2019 I heared...only the new R 1250 S might get the full 145-160 hp treatment as rumors say...
my uneducated guess as all get the new engine for 2019 I heared...only the new R 1250 S might get the full 145-160 hp treatment as rumors say...
And there we have it.
The correct terminology is longitudinal and lateral. But still no answer to my question. My interest is in this technical shit and for a job I read technical shit and have to understand it for the execution of said job. So please explain it to me or even reference your claims to something somewhere on the web. What you say makes absolutely no sense nor is there a mathematical equation to back it.
I am certain if you do some research you will find that when gears mesh there is friction and friction uses energy, the same with bearings etc. The nice thing about a chain is the the surfaces exposed to friction is so much smaller and the construction of it allows these surfaces to move/rotate which minimises the energy losses (it is easier to rotate than to crush). The downsides are exposure to the elements, debris, maintenance regime and replacement more often. The shaft drive runs through a cross coupling which is cyclic in speed (the acceleration and deceleration tempo depends mainly on the angle) and because of that uses energy. The mass that is needed to construct the shaft must be sped up and also slowed down, that uses energy. The meshing of the bevel gear at the final drive uses energy. The coupling and sliding component that allows the shaft to lengthen or shorten uses energy. The bearings uses energy and the effort to splash the oil uses energy. This is not an efficient or light solution to transmit power but it is reliable and requires less maintenance in the various applications this method is used. The reason BMW uses it is because the bikes are more touring orientated thus the users wants to spend less time on maintenance.
You can discount the gearbox losses for this explanation because the all have a clutch and 6 gears with an output shaft connected to either a gear or cross coupling.
I am certain if you do some research you will find that when gears mesh there is friction and friction uses energy, the same with bearings etc. The nice thing about a chain is the the surfaces exposed to friction is so much smaller and the construction of it allows these surfaces to move/rotate which minimises the energy losses (it is easier to rotate than to crush). The downsides are exposure to the elements, debris, maintenance regime and replacement more often. The shaft drive runs through a cross coupling which is cyclic in speed (the acceleration and deceleration tempo depends mainly on the angle) and because of that uses energy. The mass that is needed to construct the shaft must be sped up and also slowed down, that uses energy. The meshing of the bevel gear at the final drive uses energy. The coupling and sliding component that allows the shaft to lengthen or shorten uses energy. The bearings uses energy and the effort to splash the oil uses energy. This is not an efficient or light solution to transmit power but it is reliable and requires less maintenance in the various applications this method is used. The reason BMW uses it is because the bikes are more touring orientated thus the users wants to spend less time on maintenance.
You can discount the gearbox losses for this explanation because the all have a clutch and 6 gears with an output shaft connected to either a gear or cross coupling.
Deleted account 211025001
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You don't need none of that crap dude, just look at what the pros do!
Have you not seen Rossi's new shaft drive Yam for the 2019 season?
Andres
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It’s shite like this that make me feel there’s not a relevant section for the bike I choose to ride hence I don’t visit this section very often,fuckwitery and cockwombles abound
Deleted account 211025001
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It’s shite like this that make me feel there’s not a relevant section for the bike I choose to ride hence I don’t visit this section very often,fuckwitery and cockwombles abound
Bring back Dahoum....... He used to mod the 1200 section brilliantly I thought, anything not 100% technical got booted out
Times change though, rider demographics change, it's the way it is and not all bad.
Andres
Troppo
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It’s shite like this that make me feel there’s not a relevant section for the bike I choose to ride hence I don’t visit this section very often,fuckwitery and cockwombles abound
That's very harsh and judgemental....
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Bring back Dahoum....... He used to mod the 1200 section brilliantly I thought, anything not 100% technical got booted out
Times change though, rider demographics change, it's the way it is and not all bad.
Andres
Do we need a 1250 section then?
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Bring back Dahoum.......anything not 100% technical got booted out
Andres
The problem is some folk are taking the hump when their claims on technical information is challenged
The likes of boxerlust (other contributor's are available
) don't seem to be able to back up their views with any serious evidence and seem to think if you just keep posting the same inaccurate information (bullshit) it will somehow turn into a truth. Plenty of other threads in the WC section not attracting controversial posts because generally they don't contain fictional bullshit
If folk can't handle being called out for bullshit without resulting to handbags and a complete loss of humour, maybe, just maybe, it's time to stop digging the hole
Not sure I want this particular problem solving as it most entertaining
Does that make me a bad person
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