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Bristol Classic Bike Show Feb.6/7th 2016

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Bristol Classic Bike Show Feb.6/7th 2016

Posted by robert_presley at October 20. 2015

Hi,

Bristol Branch annually attend the Feb, show at Bath and West Showground, winning accolades for several years with our stand, this time we are using the theme of Rotaries, with a couple of the outstanding race bikes from the National Motorcycle Museums collection and our own members Rotaries, loads of original publicity stuff and working models of the engines, Brian Critchton is coming along, with his latest race bike if possible. We hope to meet many NOC members, if you decide to come along please sign our visitors book, have a chat and enjoy a great show.

Bob Presley, Sec. Bristol Branch

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by george_molyneux at November 09. 2015

Hi Bob

Glad to hear your featuring rotaries on next years stand. I'm a member of the Devon branch .

You may be interested in my rotary special which I completed this year to take to the Classic IOMTT. The features on this bike are to many to list but in a nut shell it's a rotary cafe racer with a bespoke gerabox using a cluster from a gsx750 and reverse direction drive primary. The frame is Aprillia with many parts either made or modified from other bikes.

All the work has been done by myself including pattern making, casting and machining of the gearbox etc.

The bike will be at the NEC this weekend on the NOC stand

If you are interested in the bike please get intouch

Picture attached

George Molyneux

Attachments

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by Dan Field at November 09. 2015

Very nice!  ........ Not in East Devon by any chance?

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by george_molyneux at November 10. 2015

Hi Dan

North Devon which I know you East and South Devon chaps find is a bit on the cool side. So I do try to attend as many Devon branch meetings and events as I can. I will be at the next meeting which is Wednesday 18th.

Are you a branch member?

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by Dan Field at November 11. 2015

My Mum used to live in N Molton, so know it pretty well! And yes we used to see the temp drop as we climbed out of Tiverton! I'm in Honiton now and have only been to one club meeting so far, when Gordon Jackson gave a talk.  I must come again, what goes on at the meetings?   I'm also a member of the Devon Classic Scramble Club and the TRF , finding time to ride the bikes is hard enough! 

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by david_evans at November 11. 2015

A tidy weapon George, can you briefly explain the reverse direction primary drive? Thanks

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by george_molyneux at November 11. 2015

Hi Dan

This week will be sorting our Christmas do which is at Fingle Glen golf club.

We are a very active group and we try to plan activities over the year that include both riding and showing. 

Best thing to do is come to a meeting and see what you think.

Hope you enjoyed the Gordon Jackson evening 

 

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by george_molyneux at November 11. 2015

Previously david_evans wrote:

A tidy weapon George, can you briefly explain the reverse direction primary drive? Thanks

I've attached a picture that should give you idea of how I did it

In a nut shell the chain driven by the engine sprocket drives a sprocket on an idler shaft which has a gear attached to it which then drives the primary gear on the clutch. Behind the clutch basket is the sprag clutch and starter gear and a spring cush drive.

Not a five minute job as you can imagine 

Attachments

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by robert_presley at November 17. 2015

Previously george_molyneux wrote:

Hi Bob

Glad to hear your featuring rotaries on next years stand. I'm a member of the Devon branch .

You may be interested in my rotary special which I completed this year to take to the Classic IOMTT. The features on this bike are to many to list but in a nut shell it's a rotary cafe racer with a bespoke gerabox using a cluster from a gsx750 and reverse direction drive primary. The frame is Aprillia with many parts either made or modified from other bikes.

All the work has been done by myself including pattern making, casting and machining of the gearbox etc.

The bike will be at the NEC this weekend on the NOC stand

If you are interested in the bike please get intouch

Picture attached

George Molyneux

Hi George,

this is an opportunity we can't resist, I'll add you to the list for inclusion in the show brochure and design you into the stand, thank you so much for offering your bike, I'll get back to you with the entry slips etc, nearer the time.

best wishes

BobPresley Sec, Bristol Branch


Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by david_evans at November 17. 2015

Neat conversion George I guess the original GSX gearbox input was direct gear drive from the end of the crank.

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by george_molyneux at November 18. 2015

Previously david_evans wrote:

Neat conversion George I guess the original GSX gearbox input was direct gear drive from the end of the crank.

Yes that's right

The trouble with a gear driven primary on a rotary is getting the clutch and crank gears close enough as the rotor chambers are so large.

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by dominic_loram at January 09. 2016

Previously Dan Field wrote:

My Mum used to live in N Molton, so know it pretty well! And yes we used to see the temp drop as we climbed out of Tiverton! I'm in Honiton now and have only been to one club meeting so far, when Gordon Jackson gave a talk.  I must come again, what goes on at the meetings?   I'm also a member of the Devon Classic Scramble Club and the TRF , finding time to ride the bikes is hard enough!

Hi Dan

i help run the Devon branch. If you check out our website we are a very active group and you can see on the events page our events lined up for 2016. Hopefully see you at one of our club nights.

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by Dan Field at January 09. 2016

Cheers! I'll check the website and try to come along to another club night, preferably on a bike!

Dan

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by robert_presley at February 13. 2016

Previously robert_presley wrote:

Hi,

Bristol Branch annually attend the Feb, show at Bath and West Showground, winning accolades for several years with our stand, this time we are using the theme of Rotaries, with a couple of the outstanding race bikes from the National Motorcycle Museums collection and our own members Rotaries, loads of original publicity stuff and working models of the engines, Brian Critchton is coming along, with his latest race bike if possible. We hope to meet many NOC members, if you decide to come along please sign our visitors book, have a chat and enjoy a great show.

Bob Presley, Sec. Bristol Branch

Hi Again,

seems strange to be replying to my own entry ,but I wish to just give a thank you to everyone that came along to the stand this year, displayed, helped or just shook hands , it was a very successful stand, the NMM bikes and Brian Crighton's racer draw lots of interest, also the engine set up by Len Purnell to show the engineering quality and rotation had loads of onlookers, hopefully some went away with a little insight as to the simplicity of the Wankel concept. It will be a hard act to follow next year.

Best wishes

Bob Presley Sec. Bristol Branch

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by Dan Field at February 13. 2016

It was a great stand as usual! and good to meet some fellow club members and pick Andy's brain about my jubilee!

The open rotary engine was certainly interesting, it's all well and good knowing the theory but seeming it in the flesh so to speak made the difference.

any idea how much the classic went for in the auction?

Dan

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by robert_presley at February 16. 2016

Previously Dan Field wrote:

It was a great stand as usual! and good to meet some fellow club members and pick Andy's brain about my jubilee!

The open rotary engine was certainly interesting, it's all well and good knowing the theory but seeming it in the flesh so to speak made the difference.

any idea how much the classic went for in the auction?

Dan

Hi Dan,

sorry didn't follow the auction, to easily tempted!

best wishes

BobP

Re: Bristol Classic Bike Show Feb.6/7th 2016

Posted by charles_newall at March 03. 2016

The classic didn't sell, the auctioneer was frantically taking bids off the wall, then folded as soon as his "bidding" got close to reserve.

it looks to be entered into the Bonhams auction at Stafford.

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