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Re-register Cruiser/Falcon

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Re: Re-register Cruiser/Falcon

Post  peter@dunfordconstruction on Thu Mar 22, 2018 4:21 pm

Hi Ken,

Are the two trials bikes in the photos yours? Also is that a Parkinson head & Barrell & a 32a? What tear are the bikes?

Regards

Peter

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Head and Barrel

Post  piston 197 on Thu Mar 22, 2018 5:19 pm

Looks to be a greeves TFS/MDS barrel to me will have
M20
EXA
stamped on the back just below the top fin of the Barrel on a solid slug of alloy if it is ?
There are only 7 fins on a Parkinson barrel so fins appear wider spaced than a Greeves
JH
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Trials bike

Post  kerabo on Thu Mar 22, 2018 6:58 pm

In the trials frame the RH side is spaced away from the wheel leaving room to accept the silencer. I guess it's to protect it during a trial. Remember mine would have originally had the AMC engine and this would have been the correct silencer but I used it with the Villiers. It comes with a crease to miss the damper.
If you get stuck I have a bantam silencer I fitted to see how it went that is dented to miss the damper.

Ken
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Re: Re-register Cruiser/Falcon

Post  peter@dunfordconstruction on Fri Mar 23, 2018 9:34 am

Hi John & Ken,

Thanks for info

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Barrel

Post  kerabo on Fri Mar 23, 2018 9:44 am

peter@dunfordconstruction wrote:Hi Ken,

Are the two trials bikes in the photos yours?  Also is that a Parkinson head & Barrell  & a 32a? What tear are the bikes?

Regards

Peter

Sorry I missed your post.
That barrel was a Marcelle. It was with the original bike I purchased and then put everything into a trials frame.

Although it went well enough it was noisy. The fins ring like a bell until I out padding in between.
It was also very thirsty and I was always scared to be away from filling stations.

It the end I realised I had a Villiers 250 head barrel and piston in a box so fitted it.

Much better. No loss in power, noise gone, and economical.

The alloy set looks nice but that's about it.

The bikes in the pictures are the same bike. One before fitting the Norton forks and with the Marcelle barrel. So you can see how high it makes it. It also had 5" hubs but now has 6"
The bike below is what I made from all the left over parts. Just had to buy the engine


.



Regards Ken
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Re: Re-register Cruiser/Falcon

Post  peter@dunfordconstruction on Fri Mar 23, 2018 9:54 am

Hi Ken thanks for that I have done a few variants of F/B scramblers / Trials /trails I will see if I can get technical enough to post some pics!

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Scrambles

Post  MoscowFlyer on Fri Mar 23, 2018 10:15 am

Hi, here is a short scrambles film, there is a FB scrambler number 9 at the beginning, wonder who he was? There was a Chris Sharp had a motorbike shop just up the road from where I live, I don't know if he was the same chap as won the race? Mike

  https://www.youtube.com/watch?v=9DDggAnxUdA
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Triss Sharp

Post  piston 197 on Fri Mar 23, 2018 12:14 pm

Mike ,althogh the comentator kept referring to Chris Sharp, if you look at the end the results show T SHARP as the winner, this is factory FB rider TRISS , ( not Chris ) Sharp

JH
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Triss Sharp

Post  MoscowFlyer on Fri Mar 23, 2018 8:20 pm

Hi John, thanks for that, I saw the T and thought that was the mistake. So it was a Francis Barnett that won that race? the film is a little blurred and hard to see, the winning bike has what looks like a Norton 8" brake drum, I've seen a picture recently of a FB competition bike with one such drum, I'll see if I can find it. Mike
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Triss Sharp

Post  MoscowFlyer on Fri Mar 23, 2018 8:40 pm

Hi, I've found it, it's on Off Road Giants, it's bike number 70 and it's 2.50 into the first film, and bike number 21 and 1.40 into the second. Mike

https://www.youtube.com/watch?v=9g3QRwRxYGQ

https://www.youtube.com/watch?v=V_DM4lZJGa8
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Triss Sharp

Post  piston 197 on Sat Mar 24, 2018 7:08 am

Yes that is the guy, the works AMC bike was very competitive in the early 60's and if you look at the results for 1960/61 they were always at the forefront of the pack and winning many 250cc class races, unfortunately the fragility of the engines in fierce competition meant the works bikes were getting rebuilt after every weekend, something that the private rider could not afford do.

This meant many bikes had their engines stripped out and the more robust Villiers A series and Starmakers were substituted, i have one such bike which started out as a AMC engined bike that now sports a Villiers Starmaker engine, this was done in the day by Doug Wheeler motorcycles to keep the bike competitive.
By 1963/64 FB and James were using the Villiers engine themselves in the same chassis and like the Works bikes they had realised the tin hub wheels were not up to the job and the late Starmaker powered scrambler 94 used British Hub Motoally hubs back and front.

The Norton brake in the works bike shown in the videos you have linked never made it into the production bikes, the ordinary public had to settle for the standard 6" hub that also graced the road bikes and was never really up to the job for a competition bike.
JH
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Triss Sharp

Post  MoscowFlyer on Sat Mar 24, 2018 8:26 am

Thanks John, for the really interesting reply. Mike
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Re: Re-register Cruiser/Falcon

Post  rob spence on Sat Mar 24, 2018 10:01 am

J. H., what was the weak point of the amc engine?

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weak point

Post  piston 197 on Sat Mar 24, 2018 11:19 am

It all came down to the design, it was not suitable for the competition use , it was too heavy and the lack of support for the piston tended to end badly, there were some initial problems with the road engines that were ironed out, but the comp bike while having a great chassis was let down by a fragile engine
JH
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Re: Re-register Cruiser/Falcon

Post  rob spence on Sat Mar 24, 2018 11:25 am

Thanks JH.

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Re: Re-register Cruiser/Falcon

Post  peter@dunfordconstruction on Sat Mar 24, 2018 1:36 pm

A chap called Al Webb used a norton dominator front hub when he won the TV scramble at Clifton Derby in 1958 as shown on p 101 of Don Morleys British Scramblers

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Pictures

Post  peter@dunfordconstruction on Mon Mar 26, 2018 10:20 am

I believe these to be the same as the F/B Scrambler 94 Wheels.

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F/B Trail 80

Post  peter@dunfordconstruction on Mon Mar 26, 2018 10:24 am

Thought this might be of interest My version of a Trail bike

Peter





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Re: Re-register Cruiser/Falcon

Post  rob spence on Mon Mar 26, 2018 10:52 am

That's great Peter! What sized sprokets did you use and is that a standard tank or alloy copy?

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Re: Re-register Cruiser/Falcon

Post  peter@dunfordconstruction on Mon Mar 26, 2018 11:00 am

Hi Rob,
Standard 80 tank Sprockets on engine are standard rear drive 60 teeth. Has not been on road yet fresh off the press!!

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Re: Re-register Cruiser/Falcon

Post  rob spence on Mon Mar 26, 2018 2:03 pm

Hi Peter where did you get the 60 tooth sproket from?

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Re: Re-register Cruiser/Falcon

Post  peter@dunfordconstruction on Mon Mar 26, 2018 2:17 pm

Hi Rob,

Talon Engineering in Yeovil Somerset Built to special order they have made several for me, But I guess if you are fitting to 6" hub I am sure they will make you one ring 01935471508

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Re: Re-register Cruiser/Falcon

Post  rob spence on Mon Mar 26, 2018 2:18 pm

Thanks peter.

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Re: Re-register Cruiser/Falcon

Post  rob spence on Fri Mar 30, 2018 3:07 pm

Peter, what size and width of rims and tyres did you use?

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Re: Re-register Cruiser/Falcon

Post  peter@dunfordconstruction on Fri Mar 30, 2018 7:10 pm

Hi Rob,

21" WM1 Front Rim Dunlop Geomax Tyres 80 / 21"

18" WM2 Rear Rim " " " 100/18"

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Re: Re-register Cruiser/Falcon

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