"Bits of modern motorbikes that are antiquated" thread in "Motorbike Chat"
only ridden a couple of shaft driven bikes, and they were so well behaved you would hardly know [a K100 beemer and a couple of ...

28-01-08, 11:40

only ridden a couple of shaft driven bikes, and they were so well behaved you would hardly know [a K100 beemer and a couple of CX500s]. how a lightweight sports type bike would feel, i really don't know.

bullitt · 28-01-08, 11:43

Quote:

Originally Posted by AnnAliRse

The prime example being the drive chain.

Modern bikes have enormously impressive power figures, after years of intense development; we have innovations like slipper clutches and fly-by-wire throttles; whilst allowing all the power to be delivered to the rear wheel by an invention that is a couple of hundred years old, i.e. the chain!!!!

It goes rusty, needs adjusting & lubing etc - all archaic practices when taken in context with other bike developments.

Yes there's shaft drive - OK, it weighs more, loses a bit of power and doesn't wheelie (!), but surely with modern materials like titanium etc. these issues can be overcome?

Or there's the Buell / Harley idea of kevlar belt drive - doesn't rust, needs minimal maintenance etc.

Perhaps it's time the manufacturers turned their attention to these practical issues rather than the relentless pursuit of more power.....

When Harley changed from a chain to a belt drive, at first it was not well received. Manufactures consider how well changes in their product may be received.

TooFamousRob · 28-01-08, 11:48

Quote:

Originally Posted by Voyager

I think the most modern bike sold with a chain case was the TR1. Can anyone think of one that post dates that early eighties marketing failure?

The late eighties/early nineties Norton Classic and Commander did too.

No more successful than the TR1, though.

Voyager · 28-01-08, 11:49

Quote:

Originally Posted by SteveMac

Shaft Jacking ? sorry, don't know the term, do you mean the Torque action of the shaft?

'Shaft jacking' is a pretty common description for the effect on a motorcycle. Google it.

Rotation will cause vertical movement. Since the pinion cannot climb the crown wheel and the swingarm and rear drive are hinged at one end the torque of the wheel and drive will tend to move the suspension vertically under acceleration.

Voyager · 28-01-08, 11:50

Quote:

Originally Posted by TooFamousRob

The late eighties/early nineties Norton Classic and Commander did too.

You're quite right. Well done.

Voyager · 28-01-08, 11:51

Quote:

Originally Posted by bullitt

Manufactures consider how well changes in their product may be received.

You are also quite right.

It isn't that modern motorcycles are antiquated - it is that the buyers are.

Olivier Spanners · 28-01-08, 11:52

"Diluting a good thread with white noise" negative point.

WTF! One great addtion and some light humour, miserable bastard!

FUCK OFF who ever added that!

GiantPygmy · 28-01-08, 11:55

As Voyager quite rightly states, the basic design is as antiquated as the invention of the pedal bicycle, but its called a motorcycle so thats alright with me.

I agree that just becuase the original design of something is antique, doesn't mean it needs replacing. However, although modern chains get far higher mileages than in years gone by, they are still a pain in the arse.

I rode an F800 BMW recently which had belt drive. Why is belt drive not is wider use?

Spider101 · 28-01-08, 11:56

I have a '98 CG125 that has an enclosed chain. I think the demise of the chaincase is entirely down to the whims of fashion more than anything else.

Voyager · 28-01-08, 11:58

Quote:

Originally Posted by Spider101

I have a '98 CG125 that has an enclosed chain. I think the demise of the chaincase is entirely down to the whims of fashion than anything else.

I was discounting things that had survived simply through dint of long production runs. The CG was designed in the late 60's as a utilitarian bike - a position in which it succeeds in very well.

Kebab The Cat · 28-01-08, 12:03

Quote:

Originally Posted by Spider101

I have a '98 CG125 that has an enclosed chain. I think the demise of the chaincase is entirely down to the whims of fashion more than anything else.

Not sure about that. I quite like being able to see my chain, so I can decide if it needs a bit of a tighten or a bit of lube.

Honest question - I've never seen a chaincase bike - but how much visual inspection can you do if you've got one?

KtC

AnnAliRse · 28-01-08, 12:07

Quote:

Originally Posted by TooFamousRob

The late eighties/early nineties Norton Classic and Commander did too.

No more successful than the TR1, though.

Oh dear...that Norton was a bit fugly wasn't it?

AbjectBlitz · 28-01-08, 12:07

Quote:

Originally Posted by Kebab The Cat

Not sure about that. I quite like being able to see my chain, so I can decide if it needs a bit of a tighten or a bit of lube.

Honest question - I've never seen a chaincase bike - but how much visual inspection can you do if you've got one?

KtC

On my MZ it was a piece of piss to just slide the bottom rubber closure off to inspect and just slide it back on. And with some heavy black grease it NEVER needed lubing again. Just tighten.

Voyager · 28-01-08, 12:07

Quote:

Originally Posted by Kebab The Cat

Not sure about that. I quite like being able to see my chain, so I can decide if it needs a bit of a tighten or a bit of lube.

Honest question - I've never seen a chaincase bike - but how much visual inspection can you do if you've got one?

Inspection hole.

Clever, these Edwardians.

Hunter · 28-01-08, 12:08

thatd be every single internal combustion engine in use currently...

you'd think with the pace of development the ICE would be obsolte by now

28-01-08, 12:08	#30 (permalink)
Hunter Senior Member Join Date: Jan 2008 Posts: 6,965 Casino cash: £165900 Blog Entries: 1 Thanks: 3 Thanked: 28/27	thatd be every single internal combustion engine in use currently... you'd think with the pace of development the ICE would be obsolte by now
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28-01-08, 11:40	#16 (permalink)
Deleted On Request Guest Tournaments Won: 1 Posts: n/a Casino cash: £	only ridden a couple of shaft driven bikes, and they were so well behaved you would hardly know [a K100 beemer and a couple of CX500s]. how a lightweight sports type bike would feel, i really don't know.


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28-01-08, 11:52	#22 (permalink)
Olivier Spanners Banned Join Date: Jan 2008 Location: the roulette table Posts: 521 Casino cash: £149350 Blog Entries: 5 Thanks: 6 Thanked: 2/2	"Diluting a good thread with white noise" negative point. WTF! One great addtion and some light humour, miserable bastard! FUCK OFF who ever added that!

28-01-08, 11:55	#23 (permalink)
GiantPygmy Enormous Member Join Date: Jan 2008 Location: Up the junction Posts: 1,513 Casino cash: £496700 Thanks: 11 Thanked: 8/8	As Voyager quite rightly states, the basic design is as antiquated as the invention of the pedal bicycle, but its called a motorcycle so thats alright with me. I agree that just becuase the original design of something is antique, doesn't mean it needs replacing. However, although modern chains get far higher mileages than in years gone by, they are still a pain in the arse. I rode an F800 BMW recently which had belt drive. Why is belt drive not is wider use?

28-01-08, 11:56	#24 (permalink)
Spider101 Senior Member Join Date: Jan 2008 Location: The Fens Posts: 182 Casino cash: £152754 Thanks: 0 Thanked: 1/1	I have a '98 CG125 that has an enclosed chain. I think the demise of the chaincase is entirely down to the whims of fashion more than anything else.

"Bits of modern motorbikes that are antiquated" thread in "Motorbike Chat" only ridden a couple of shaft driven bikes, and they were so well behaved you would hardly know [a K100 beemer and a couple of ...

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"Bits of modern motorbikes that are antiquated" thread in "Motorbike Chat"
only ridden a couple of shaft driven bikes, and they were so well behaved you would hardly know [a K100 beemer and a couple of ...