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Hinckley Triton

Hinckley Triton

Postby Fast Eddie » Mon Jul 21, 2014 9:41 am

I've built a few Tritons, some of them pretty good and quite trick too. I thought it was all behind me as building a good NRE based 900cc 8 valve based bike from scratch is just so damned expensive. And having had such bikes, a 650 twin doesn't really appeal that much.

But the more I think about it the more I like the idea of a Hinckley Bonnie based Triton. There are plenty of go faster goodies for these now days too.

I've seen pics of Madass's bike, and very nice it is too. But I'd want to build something that looked as much like a Manx as possible, wide line frame etc.

Had anyone on here done this? Any pics? Any advice re what to do with the rear wheel-swinging arm-final drive spindle arrangements to get good geometry? Etc?
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Re: Hinckley Triton

Postby madass140 » Tue Jul 29, 2014 7:28 pm

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mylasttriton.jpg[img]mylasttriton.jpg[/img]
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Re: Hinckley Triton

Postby Fast Eddie » Wed Jul 30, 2014 12:15 am

Thanks Madass, a few questions if I may:

This is your Slimline frame I presume?

What did you do about the basic measurements, meaning the frame cradle looks shorter than a Norton, did you lengthen the swinging arm to restore the wheel base?

War rake angle did you use?

Can you get the cam cover off with the engine in situ?

Did you mount the swing arm pivot to the gusset plates as per Norton, or to the engine as per Triumph?

What did it ride like?

Do you know anyone who makes a comparable frame as a Wideline?
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Re: Hinckley Triton

Postby madass140 » Wed Jul 30, 2014 7:19 am

yes its my frame, built for this engine, it retains all the Slimline dimensions, the swingarm is off the engine , but it appears not to be. A section of the frame about the size of an Atlas tank is removeable to allow cam cover, heas etc removal, obviously some would think this would weaken the frame structure but the way it was done ensures this is not the case, solid steel lugs plug welded into the 4 joints sectioned and bolted together with 2 x 10mm a total of 8 hitensile bolts, similar to what the Japanese do to some of their frames for ease of engine removal.
A lot of work but worth it , at least for a one off, If any other similar frames are available then I cant see how they could retain the same frame dimensions and still be able to get the top end off,
mylasttriton.jpg[img]mylasttriton.jpg[/img]
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Re: Hinckley Triton

Postby Fast Eddie » Wed Jul 30, 2014 8:46 am

madass140 wrote:yes its my frame, built for this engine, it retains all the Slimline dimensions, the swingarm is off the engine , but it appears not to be. A section of the frame about the size of an Atlas tank is removeable to allow cam cover, heas etc removal, obviously some would think this would weaken the frame structure but the way it was done ensures this is not the case, solid steel lugs plug welded into the 4 joints sectioned and bolted together with 2 x 10mm a total of 8 hitensile bolts, similar to what the Japanese do to some of their frames for ease of engine removal.
A lot of work but worth it , at least for a one off, If any other similar frames are available then I cant see how they could retain the same frame dimensions and still be able to get the top end off,


Sounds good.

I don't think the bolt up frame is any issue at all. Lots of bolt up frames over the years. In fact the Hinckley Bonnie has bolt in sections.

Are you going to make any commercially? And if so, any widelines??
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Re: Hinckley Triton

Postby madass140 » Wed Jul 30, 2014 3:12 pm

my frame making days are done, I used to build Slimlines because there were many building Widelines coz they were much easier to build.
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Re: Hinckley Triton

Postby Johnnymac » Thu Jul 31, 2014 9:58 am

Unity Equipe sells slimline frames that will accommodate the Hinkley Triumph motor.
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Re: Hinckley Triton

Postby Fast Eddie » Thu Jul 31, 2014 10:28 am

Johnnymac wrote:Unity Equipe sells slimline frames that will accommodate the Hinkley Triumph motor.


I've seen them Johnny, trouble is A) I want a wideline and more importantly B) I can't make out what they've done, but the frame loop looks very short. There's a funny bend in the front down tube. I'm dubious that after making so many fundamental changes to the featherbed design, will it still handle? If it were Harris, or Spondon, or Dresda that had done it I'd be confident, but Unity aren't experienced frame designers.
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Re: Hinckley Triton

Postby grandpaul » Thu Jul 31, 2014 9:46 pm

When all is said and done, part of the 'legendary' handling of the featherbed frames was the "package deal" with roadholder forks and (girling?) rear shocks.

If you're not running those, then the comparison to the original setup would take some doing to prove it's worth. Still, many of us don't care and do what we want with 'em anyway. Never mind the never-ending disagreement regarding widelines being 'better' than slimlines.
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Re: Hinckley Triton

Postby Fast Eddie » Thu Jul 31, 2014 11:42 pm

grandpaul wrote:When all is said and done, part of the 'legendary' handling of the featherbed frames was the "package deal" with roadholder forks and (girling?) rear shocks.

If you're not running those, then the comparison to the original setup would take some doing to prove it's worth. Still, many of us don't care and do what we want with 'em anyway. Never mind the never-ending disagreement regarding widelines being 'better' than slimlines.


I'm firmly in the camp that says there's no handling difference between wide / slim lines. My only reason for preferring wideline in this instance is for the 'Manx look'.

I take your point ref forks etc, but its not really my point, my concern is with things like wheel base, rake angle, weight distribution and the all important rear wheel-swinging arm- final drive sprocket spindles alignment and relationship.

Changing any of the above on purpose, for a specific gain, is fine so long as the frame constructor knows their stuff.

But changing it by accident / without realising will create a chassis of unknown quantity and that's what I wish to avoid.

I designed my own featherbed lookalike once for racing. I put the swinging arm spindle in the wrong place and suffered 2 seasons of rear wheel patter as a result before I worked out why!
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Re: Hinckley Triton

Postby Chris » Thu Aug 14, 2014 1:25 pm

Hi Nige

There was a lad on e bay who made widelines for Hinkleys & Harleys. He was very cheap & used good materials.
Haven't seen an add recently. The old boy who builds frames & sells them at Kempton Park made them for a larger company (cough) who sold them for more than 3 times the price :D All widelines.

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Re: Hinckley Triton

Postby Fast Eddie » Thu Aug 14, 2014 1:54 pm

Chris wrote:Hi Nige

There was a lad on e bay who made widelines for Hinkleys & Harleys. He was very cheap & used good materials.
Haven't seen an add recently. The old boy who builds frames & sells them at Kempton Park made them for a larger company (cough) who sold them for more than 3 times the price :D All widelines.

Chris


Thanks Chris, does matey still turn up at Kempton with Hinckley featherbeds ?
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Re: Hinckley Triton

Postby Lanks » Sat Nov 01, 2014 3:50 pm

Interesting little read.
I'll have to look into the Hinckleys further.

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Re: Hinckley Triton

Postby cjandme » Thu Nov 20, 2014 3:29 am

Framecrafters make custom featherbed frames, but are state side, so not sure if any help to you
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Re: Hinckley Triton

Postby Chris » Fri Jan 09, 2015 10:41 am

Hi

Harley wideline
http://www.ebay.co.uk/itm/Manx-norton-f ... 1e978893fe

Think this is the guy doing Hinkley widelines

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