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Vintage motorbike

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Nick_G07/10/2014 22:22:44
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1808 forum posts
744 photos

.

I realise this is not strictly model engineering but there is one running on aircraft. So here goes.

I saw this old rascal parked up in Warrington.

Nick

Michael Gilligan07/10/2014 22:29:53
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20052 forum posts
1040 photos

Very nice too, Nick

... a "model" of engineering for one to follow.

MichaelG.

Nick_G07/10/2014 23:12:38
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1808 forum posts
744 photos

.

Here is a video of Norton Commando that belongs to a friend of mine he restored a few years ago. He has 5 bikes in total but the Norton is his cherished favorite one.

Link to video :- **LINK**

Nick

ronan walsh08/10/2014 00:42:58
546 forum posts
32 photos

Its amazing , but the british bike industry made a good few models of v-twin's in large capacities before the second world war, but only vincent made one after (maybe jap engines too ?). Bsa made a 1,000cc v-twin and it was marketed as a workhorse used to drag massive tradesmens sidecars about. The parallel twin was a developmental dead end compared to the better balanced v-twins.

Bill Pudney08/10/2014 03:27:12
606 forum posts
24 photos
Posted by ronan walsh on 08/10/2014 00:42:58:

Its amazing , but the british bike industry made a good few models of v-twin's in large capacities before the second world war, but only vincent made one after (maybe jap engines too ?). Bsa made a 1,000cc v-twin and it was marketed as a workhorse used to drag massive tradesmens sidecars about. The parallel twin was a developmental dead end compared to the better balanced v-twins.

Hmmmm..... Big capacity V twins from say 1910 to 1940, built in relatively (compared to the single cylinder mainstay) small quantities; parallel twins built by all manufacturers from 1936 ish to 1970 to 1975 in huge numbers and varieties. If you include the new Norton 961, being built in numbers probably greater than Vincents, then the parallel twin is still going. Most tradesmen moved to Thames vans and their ilk in the 1960s.

Not arguing that the V twin is possibly the ideal engine layout for a motorcycle, but the parallel twin had a lot going for it, if only the manufacturers had paid more attention to vibration reduction. I wouldn't say that it was a developmental dead end, but that the manufacturers ran out of development budget.

This is a discussion that could go on for decades, it's already been going on since the mid thirties!

cheers

Bill

Bill Pudney08/10/2014 03:28:57
606 forum posts
24 photos

Forgot to say, lovely looking bike Nick, enjoy it, well found!!

cheers

Bill

Michael Gilligan08/10/2014 07:25:11
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20052 forum posts
1040 photos
Posted by Bill Pudney on 08/10/2014 03:27:12:
Posted by ronan walsh on 08/10/2014 00:42:58:

... The parallel twin was a developmental dead end compared to the better balanced v-twins.

.... but the parallel twin had a lot going for it, if only the manufacturers had paid more attention to vibration reduction.

.

I think that Edward Turner deserves much of the credit for the change of direction.

... and, of course, the rather incestuous nature of the British motorcycle industry.

MichaelG.

Mike Poole08/10/2014 07:39:30
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3299 forum posts
73 photos

Hesketh built a V twin for a while, not in huge numbers though.

Mike

richard allen 608/10/2014 07:40:11
7 forum posts
Posted by ronan walsh on 08/10/2014 00:42:58:

Its amazing , but the british bike industry made a good few models of v-twin's in large capacities before the second world war, but only vincent made one after (maybe jap engines too ?). Bsa made a 1,000cc v-twin and it was marketed as a workhorse used to drag massive tradesmens sidecars about. The parallel twin was a developmental dead end compared to the better balanced v-twins. Have we forgotten the Hesketh?

Mike Poole08/10/2014 07:43:48
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Moderator
3299 forum posts
73 photos

The triple has a lot going for it as a bike engine, the sound of a works Trident or Rocket III has to be one of the best sounds ever from the 60/70s.

Mike

Michael Gilligan08/10/2014 07:56:26
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20052 forum posts
1040 photos
Posted by Michael Poole on 08/10/2014 07:43:48:

The triple has a lot going for it as a bike engine, the sound of a works Trident or Rocket III has to be one of the best sounds ever from the 60/70s.

.

Agreed 100%, Mike

... I still remember our visit to the BSA factory [pre-launch], when they had a Triple on the Rolling-Road dyno. [Edit: correction - I don't think it was a proper Rolling-Road, just rollers]

... Spine-tingling.

MichaelG.

Edited By Michael Gilligan on 08/10/2014 08:02:58

Phil Whitley08/10/2014 08:48:09
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1437 forum posts
147 photos

Beautiful bike, and not a common one either. The question is, where does the Queen keep her chickens? Micheal Gilligan, You lucky lucky man! a visit to BSA! My dream bike was the rocket three, but I had to make do with an old plunger A10 Gold flash. Our local motorcycle shop was Watkinson Motors in Scarborough, and the owners son had a Rocket 3, he used to barrel through our village playing tunes with the gearbox! The best school trip I got was Parkgate Steelworks in Rotheram, then on to Moore and Wrights in Sheffield!

Phil

MichaelR08/10/2014 09:02:02
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465 forum posts
73 photos

A nice bike and well travelled, going by the number plate, registered in the highlands of Scotland Inverness or Nairn.

Those were the days when you could tell where vehicles came from by their number plates.

Mike.

Edited By Stick on 08/10/2014 09:13:25

OuBallie08/10/2014 09:17:32
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1164 forum posts
662 photos

Drool drool drool!

What is that chrome disc for, RHS on the petrol/oil tank?

Makes my CB350 Twin look like very plain indeed.

MichaelP,

Talking about the Trident, a chap living opposite us in SA had one, and the sound it made reminded both brother and I of the BRM F1 car. (not the H16 of coarse, which has a sound all of its own)

My 350 twin had an odd sound as well.

Geoff - Trying to decide what to do today.

Michael Gilligan08/10/2014 09:31:48
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20052 forum posts
1040 photos

Posted by Bill Pudney on 08/10/2014 03:27:12:

... the parallel twin had a lot going for it, if only the manufacturers had paid more attention to vibration reduction.

.

... They did, of course, in the wonderful little Ariel Arrow [an innovative, and very cleverly production-engineered machine] ... but that was a two-stroke.

MichaelG.

Gordon W08/10/2014 09:37:27
2011 forum posts

Just to stir things up a bit- I used to own and run a BSA V twin, 500cc.

Michael Gilligan08/10/2014 09:41:56
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20052 forum posts
1040 photos
Posted by OuBallie on 08/10/2014 09:17:32:

Drool drool drool!

Geoff - Trying to decide what to do today.

.

Geoff,

Whilst you are drooling; I hope you saw the Austin pics. that I posted via the "What did you do today" thread.

[ that thread is quite busy, so you may have missed them]

MichaelG.

Roger Williams 208/10/2014 10:30:56
346 forum posts
3 photos

24082014128.jpgHello all, if you like Nortons, this ones mine. Please look in my photos !!

Edited By Roger Williams 2 on 08/10/2014 10:32:15

Edited By Roger Williams 2 on 08/10/2014 10:34:17

Michael Gilligan08/10/2014 10:44:10
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20052 forum posts
1040 photos

Very nice, Roger !L

No balance problems with that one, I presume.

MichaelG.

Hacksaw08/10/2014 12:33:40
463 forum posts
199 photos

Maybe you motorbike nutters would like this thread on another forum i use ? **LINK**

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