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Series A Handlebar Levers



A_HRD

Well Known and Active Website User
VOC Member
#1
I posted a question under another thread recently and got zero response so I thought I would start this new thread.

Can anyone with a presumed original Series 'A' Handlebar Lever (brake or clutch) confirm what the pivot distance is please. That is the centre to centre distance between the pivot hole and the brake cable nipple hole.

If anyone would care to post a photo of their Series 'A' lever(s) too, that would be fabulous. It is really hard to find a period photo where they show with any clarity.

The reason for asking is that, along with a colleague, we MIGHT be able to get some made. To minimise machining requirements and to capture the finer details 'investment casting' would be preferred - despite the increased cost. They can be cast from brass, bronze, steel or stainless steel. I favour the latter - then we won't need the added cost of chroming. So two questions:
1. Is there a market out there for these?
2. If so, is anyone prepared to loan us an original lever assembly to use as a pattern?

We only want to do this once - and have it right first time!

Peter B
 

billirwinnz

Active Website User
VOC Member
#4
Yes please Peter. I'd like a pair for my TTR. The ones I bought from vintage-replica.cz are nice quality but sit too far out from the bars and need an 8mm spacer on the cable to bring them within comfortable reach. There are sometimes Indian made solid levers on eBay but it's hard to tell if the dimensions are correct and they are probably just brass castings which might be too weak for a brake lever. I will measure my twin levers but while they are definitely old I can't guarantee them to be original.

Cheers Bill
 

vibrac

Well Known and Active Website User
VOC Member
#5
Perhaps someone going to the H&H auction at the Motorcycle Museum tomorrow could pop in to the series A on display and snap away
 

Marcus Bowden

Well Known and Active Website User
VOC Member
#6
I will have a set too please Peter, Do they come with the clamp horizontal so the advance/ retard /choke levers fit directly above, as I feel with all levers and individual clamps crowd the bars up too much. Will they be supplied with the square headed clamp screws ?
bananaman.
 

MSVH Y3

Well Known and Active Website User
VOC Member
#8
I think these may be A levers. They are for one inch bars. The holes center to center are one inch. The threaded hole is 1/4 BSF. They are six inches long, made of brass or bronze. I was hoping to find the rest of the bike one day. 20181108_114740.jpg 20181108_114938.jpg 20181108_114606.jpg
 

Dinny

Well Known and Active Website User
VOC Member
#12
I think these may be A levers. They are for one inch bars. The holes center to center are one inch. The threaded hole is 1/4 BSF. They are six inches long, made of brass or bronze. I was hoping to find the rest of the bike one day. View attachment 24712 View attachment 24713 View attachment 24711
I'm not sure they are original A as they are handed as in they are a brake and clutch lever. Originally they were just one side (not sure which)...

I could be wrong of course though.

Mark
 

A_HRD

Well Known and Active Website User
VOC Member
#13
I will have a set too please Peter, Do they come with the clamp horizontal so the advance/ retard /choke levers fit directly above, as I feel with all levers and individual clamps crowd the bars up too much. Will they be supplied with the square headed clamp screws ?
bananaman.
Marcus,

The lever assemblies will come as "standard" as we can ascertain after some exhaustive research. We're not going to rush into this until we are as certain as we can be that we have got this right. So that means the clamp/bracket/perch and lever will be similar to what you see in the attached photo. Note the 'flat' nature of the bracket where it lies parallel to the lever between pivot and nipple; we are rapidly coming to the conclusion that this type is correct. And yes, the lever assemblies will come complete with pivot bolts and the beloved square-headed 1/4 BSF screws in stainless.

Peter B

20181103_114948.jpg
 
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A_HRD

Well Known and Active Website User
VOC Member
#14
MSVH Y3 wrote:
(Quote) I think these may be A levers. They are for one inch bars. The holes center to center are one inch. The threaded hole is 1/4 BSF. They are six inches long, made of brass or bronze. I was hoping to find the rest of the bike one day. (Unquote).

Thanks for the great photos, this sort of clarity is extremely helpful. However, one thing we have ascertained quite rapidly is that the original type of solid A levers were a nominal length of 5 inches - not the more common 6 inches. See comparison photo below. Sorry to deflate your ego somewhat; but at least you can rest in the happy knowledge that you might find the rest of the bike and that your bench is held together by those lovely Robertson countersunk square socketed screws! What is it about Vincent guys and square heads? :cool::rolleyes:

Peter B

20181103_113825.jpg
 

A_HRD

Well Known and Active Website User
VOC Member
#15
I'm not sure they are original A as they are handed as in they are a brake and clutch lever. Originally they were just one side (not sure which)...

I could be wrong of course though.

Mark
Mark,
I suspect you are right. I think it was Andrew Walker who brought-up this subject in a recent MPH article. I haven't got access to my MPHs at the moment to check - but I need to because I think he included a photo or two....
Peter B

EDIT: Found it! It's MPH 812, Page 54, (Sept 2016) - with photos.
 
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A_HRD

Well Known and Active Website User
VOC Member
#16
Meanwhile, thanks to all for the measurements, photos and expressions of interest coming in. Please keep them coming, we can't have too much information; we all stand to learn from it - and to secure a source of another rare Series A assembly.

(If you don't want to go public with your info/photo, please click on my Vulcan avatar and select "Start a Conversation"; that way the communication remains just between the two of us).

Peter B
 

MSVH Y3

Well Known and Active Website User
VOC Member
#18
I'm not sure they are original A as they are handed as in they are a brake and clutch lever. Originally they were just one side (not sure which)...

I could be wrong of course though.

Mark
They are not handed.
 
Last edited by a moderator:

bmetcalf

Well Known and Active Website User
VOC Member
#19
I've asked Glenn Shriver about this, from when he restored the bike in ~ 1978 that another member has now. He was in touch with Bob Stafford then, so maybe he'll have some good thoughts. Maybe Watson will weigh in, too?
 


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