Custom frame, centre hub steering, ZXR L nose...

[CaNsA]

Trying to track down some info on this.
Hopefully the BCF massive can help.

https://i.imgur.com/H2quBLz.jpg

[pinkyfloyd]

Looks like a bimota thats been fitted with plastics that dont fit.
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illuminateTHEmind wrote: I am just more evolved than most of you guys... this allows me to pick of things quickly which would have normally taken the common man years to master
Hockeystorm65:.well there are childish arguments...there are very childish arguments.....there are really stupid childish arguments and now there are......Pinkfloyd arguments!
Teflon-Mike:I think I agree with just about all Pinky has said.

[Blau Zedong]

Looks like the work of Hughes engineering of Stoke.
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18:54:48 Rob Fzs: jews don't give away stuff for free

18:54:59 Rob Fzs: unless its their clothes/ hair/ golden teeth

[Fizzer Thou]

It does look like a Bimota Tesi

https://i209.photobucket.com/albums/bb254/wahanadarat/Bike/Bimota/Bimota_Tesi_3D_2007_02_1024x768.jpg
https://i111.photobucket.com/albums/n121/gwaltersibm/2010-vyrus-987-c3-4v-08.jpg

except that the Bimota utilises a monoshock rear as against the twin shock in the OP picture.

I seem to remember a bike called a Veyrus or something similar at last years London bike show.Some quality engineering
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Just talk bikes.What else is there?

Always have a 'Plan B'

[Cheeseybeaner]

[G]

Definitely an inline 4, so not the bimoto - pretty much nothing matches.

The GTS1000 was an inline 4, but none of the details match that.

What ever it is, they've really taken the ugly stick to it!

[Vincent]

Is the motor an FZR? 'Swingarm looks Yamaha. The front swingarm looks familiar too............... 'Headlight's look pretty rough......let's you ride it in the dark tho I guess. It's some uni project maybe.

A good caption compo p'haps?

Bloke in Red:-

"how much for your daughter?.....the little one with the cute face......how much?"
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Space Is Deep

[Carvel]

https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-ash4/298050_369526849819748_774253029_n.jpg

https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-frc1/301940_369526969819736_1972757174_n.jpg

https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-prn1/936647_369526873153079_1581866949_n.jpg

Not sure if those links work?

Looks a bit strange
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2002 Aprilia RSV1000R, Cbr600Fs, Mk1 B12, Vfr400 NC30...

Matt B: I can deal with crushed nuts to beat Ollie.

[yambabe]

https://www.facebook.com/pages/Bang-To-Rights/350687361703697?ref=stream

That's the FB page of the photographer, maybe message him?
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Sod falling in love, I wanna fall in chocolate.

[G]

The exhausts look like they might be designed to go around a single fram down-tube, the way they have a big gap between cylinders 2 and 3.

[yambabe]

John says the wheels are astralite, no idea if that helps.....
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Sod falling in love, I wanna fall in chocolate.

[Frost]

yup this came up in another thread. It's a home built project that usually has a huge fairing on it. can't seem to find the thread now though

[Fizzer Thou]

[Cheeseybeaner]

I wonder what the thinking was behind it. Seems such a strange combination of things! The supposedly outdated twin shock rear with that interesting hub centre front-end? Maybe they just wanted to explore different approaches to bike suspension...
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My bikes: 2003 KAWASAKI ZRX1200R, 1996 YAMAHA DIVERSION XJ900S

[G]

Have a quick google at similar stuff got me thinking - surely this would be an choice to make AWD?
Still going to have to do some funky stuff, but it's not like the basic technology isn't available, what with FWD cars an' all.

[yambabe]

well it couldn't be uglier than the only awd bike I am currently familiar with which is the Rokon....

https://motorbike-search-engine.co.uk/classic_bikes/rokon_trail_breaker.jpg
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Sod falling in love, I wanna fall in chocolate.

[G]

Christini KTM (they may do conversions for others) is a bit more conventional looking and a very capable bike.

https://photos.nsmb.com/files/2/1/0/7/9/300xc1resized.jpg

Reckon a 300XC as above (they do 4 strokes too) with a centrifugal clutch could make up for a hell of a lot of lack of skill in steel ascents.

It uses a similar system to the Rokon, though the final drive for the front wheel is a shaft to allow for the suspension.

I did see a kit come up cheap on British Ebay, but couldn't justify spending the cash .

Here's one in action: https://www.youtube.com/watch?v=7CMYwP1EvKM .

[sickpup]

Well it isn't a Tryphonos but it could be an ASP or a Saxon. Unfortunately pics of these two are very rare on Google.

[yambabe]

according to Keith it is an ASP built in the early 90s in or near Nottingham by one Andrew Stephenson (or possibly Stevenson)

It's been at the Stafford show this weekend, a mate of mine took a pic of the engine for you, not sure if I can link it but I'll have a go....

https://i12.photobucket.com/albums/a229/Yambabe/engine.jpg

Keith will probably be along with ALL the gen shortly.....
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Sod falling in love, I wanna fall in chocolate.

[sickpup]

[CaNsA]

I knew you guys would have the info.

Ta very much

[kestrel]

The bike was indeed built by Andy Stevenson and is based on an FZR1000, some info on the rear suspension choice.


From: "fred (f.) farzanegan"

>Date: Thu, 29 Feb 1996 14:17:00 -0500

>Subject: re:Re: Frame Making, Part 5

>I'm interested in your belief of twin shocks being a better/ simpler design. I recently read in American Roadracing (11/12 '95) about a homemade center-hubbed FZR1000 made by Andy Stevenson. Alan Cathcart reviewed the bike and had general praise for it, but harshly criticised the decision to use twin shocks on the bike and cited them as the limiting factor in its handling.

>- -fred

Hello Fred - I dug out the article you referred to, it was about the second of three incarnations the ASP Yamaha has gone through. Bike magazine did four articles on the MK1 version. First off, let me make my bias plain: Alan Cathcart is a fine rider, and has probably ridden more different race bikes than anyone, and I've generally enjoyed reading his articles for the last 15 or so years, but he often makes statements relating to technical matters that seem to me to be completely out of left field. This is also the opinion of some other people who have proven to me to really know what they are talking about. Cathcart stated in the same article "There's no bump-steer whatsoever from the front end, in spite of the lack of any linkage to give a progressive suspension response" completely ignoring that suspension damping can have no effect on bump steer at all. Bump steer is when your steering angle is affected by variations in the suspension movement, ie the steering angle is 5 degrees at 1" travel vs 10 degrees at 2 " of travel, without changing the angle of the bars. This is due to steering rods/racks not being of the right height, length, position etc. Cathcart has made similar statements about bump steering in other articles, reinforcing the impression he hasn't got a clue about what bump steer is.

Cathcart ignores the fact that in the MK1 ASP, Andy Stevenson used the FZR linkage and single damper, has switched to the twin dampers, and feels it is an improvement. Stevenson said he used twin shocks "after reading why Brian Crighton did the same thing with the works Norton Rotary racers...If you have good shocks, ... same as he did, then you get adequate suspension response on a smooth racetrack as well as a stiffer rear end structure". Cathcart opined that the Norton uses them because of the heat coming off the engine and completely ignores the fact that Mr. Crighton has explicitly said in interviews that he feels the twin damper rear suspension has definite advantages over the conventional monoshock, and that he proved that to his satisfaction in blind testing where the riders rode both versions of the chassis without knowing which they were on, and they consistently went faster on the twin damper version. In a recent Harley/Metisse road test Cathcart praised the bike's twin Ohlins damper rear end as having "the same control you get from a longer-travel monoshock rearend...The ride quality is really impressive.." Granted this is a street bike, but it shows how variable his reports can be.

Any suspension can be set up wrong - you can take Doohan's NSR and ruin the handling by fitting dampers that are out of the range of what is needed, and you don't even have to convert it to twin dampers to make it work poorly. My impression is that many people don't spend enough time revalving the dampers to get them right, and then complain about how bad the rear end is (twin or single damper}. During the course of revalving WP dampers (front and rear) on a number of MX bikes, my friend Craig has discovered that the stock shim stacks in the dampers appear to vary with whatever shims the factory had sitting in a box next to the assembly line. They've been way off in a number of instances. So just because you have the latest trick damper, don't presume it is right. Even if you send it out for reworking, it seems like they often need several revalvings as the approximate specs are narrowed down to the right ones.

If Cathcart says the rear end didn't work well, he was probably right. But I don't give much credence to his being able to define exactly why it wasn't right.

Thanks for your comments,

Michael Moore
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Isle of Man.........Road Racing Capital Of The World

[bluedog59]

Greetings all. Sorry about this being my first post but I stumbled across this thread while searching for imfo on the ASP built by Mr Stephenson because.................... I've got the front end off one and the rest of the EXUP bits to build one.
Did anybody find out any more about it or maybe anybody who has one ?
Thanks.