Norton 880 BOTT racer in RG500 frame (for sale)

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Interesting bike, but at first glance, it looks like the engine is not far enough forward for decent handling as a race bike. I'm guessing it will understeer a lot in corners.

Ken
 
Not my cup of tea but very glad to see how it was so nicely done. Its stance and tank definitely similar to my '00 'boney' SV650 Suzuki.
 
Wow, a lot of work in that bike. Front mount looks familiar, does that thing have Isolastics?
Jaydee
 
I think it has two isolastics. Don't know about the top. My guess would be the swingarm is fitted in the frame, not in the cradle. I was intrigued by the "4 valves" notation on the timing cover: is that per cilinder? And the gearbox orientation like the redmax shorttracker.
 
Alloy beam frames have come a long way since then.
Bit of a flexy flier ??
Even the RG250 road bikes were notorious for cracking those type frames.....
 
Yes the gearbox orientation sure shortened the primary. They could practically run gears there.
 
Just 'because I can' is never a good reason for doing something. It is easy to build a bike that will scare you shitless. A lot of really good parts wasted - a good H2 Kawasaki motot would be better, it might actually handle.
 
slimslowslider said:
I think it has two isolastics. Don't know about the top. My guess would be the swingarm is fitted in the frame, not in the cradle. I was intrigued by the "4 valves" notation on the timing cover: is that per cilinder? And the gearbox orientation like the redmax shorttracker.

I believe that Les Emery had some four valve per cylinder heads made in the eighties. It could have one of those, it's difficult to tell from the pictures. Alternatively, it could just be referring to it having two cyclinders x two valves per cylinder...

-Eric
 
acotrel said:
Just 'because I can' is never a good reason for doing something. It is easy to build a bike that will scare you shitless. A lot of really good parts wasted - a good H2 Kawasaki motot would be better, it might actually handle.

Maybe, but then you'd only have a Kawasaki.
 
ewgoforth said:
slimslowslider said:
I think it has two isolastics. Don't know about the top. My guess would be the swingarm is fitted in the frame, not in the cradle. I was intrigued by the "4 valves" notation on the timing cover: is that per cilinder? And the gearbox orientation like the redmax shorttracker.

I believe that Les Emery had some four valve per cylinder heads made in the eighties. It could have one of those, it's difficult to tell from the pictures. Alternatively, it could just be referring to it having two cyclinders x two valves per cylinder...

-Eric

Nope. You can see the stock exhaust rocker covers in one of the photos. Les' 4-vavle head didn't have those. Looks like a normal Commando head.

Ken
 
Im not sure putting a Rover 90 engine in a Ford Escort is a better idea than putting a Ford Escort engine in a Rover 90 .
Even if you happen to have one of each .
 
Maybe they meant 2 intake and 2 exhaust vavles (total)....... to get to their 4-valves claim sticker. I kinda like it though, not sure I'd like riding it and wrenching on it, but it sure is different :)
 
Matt Spencer said:
Im not sure putting a Rover 90 engine in a Ford Escort is a better idea than putting a Ford Escort engine in a Rover 90 .
Even if you happen to have one of each .

Amen to that - just because you 'can' doesn't necessarily mean you 'should', especially with an early Gamma frame!
 
Alas, no trick head, seller confirmed the sticker on the timing side was just a "little gag" in his words...
He says it was doing ok on not to fast tracks against "superbikes" in the first BOT years.
Swing arm is mounted in frame.
 
Frame and swinging arm sure looks a lot like my GSXR750F.....

Which you would say has some flex in it....and I would have to agree that teh frame forces the motor too high and far back to be an optimum choice.

I have seen the AMC gearbox mounted that way on a Seeley Konig in line flat four 2 stroke....

Since the belt drive does not offer any cushioning effect to the drive train I am not sure why this bike needs a cush sprocket anymore than any other belt driven Norton?
 
'Maybe, but then you'd only have a Kawasaki.'

An H2 motor is two stroke, and so is an RG500. It's not as simple as just fitting a motor t o the frame. Most two strokes are completely different bikes to four stroke twins, both in power character istics and the way they handle - the weight distribution is usually radically different, and so are the power characteristics. I've built both types of bike, and the mindset you use is different for each type. I once saw an A7R Kawasaki fitted with a Triumph Bonneville motor. It shows a complete lack of riding experience - just imagination and delusion on the part of the builder. I mentioned on this forum the TZ350 fork yokes fitted to my Seeley. That is as far as I would ever go using two stroke technology on a Norton. If you have a look at that bike in the photo, you have something which is extremely torquey, with the motor too far back, and very quick self-steering geometry. If you tried to race it you would have to ride around the worst aspects of the designs of both types of bike. The builder has obviously never been grabbed by the throat by a bad handling piece of shit. Of course the question must be asked - why is he selling it ? Personally, one look at it is enough, I would not attempt to ride it fast, it is a crash waiting to happen.
When guys build bikes like that they put the rest of us at risk of needing an engineers' certificate for everything we build and race.
(About ten years ago I was involved with Standards Australia in writing 'Guide to Managing Risk in Motor Sport' . There are plenty of people about who would put us all into a legislative straight jacket.) Fortunately, if you showed that bike to most engineers, they would not know what they were looking at. However the engineer might be someone like Herb Becker.
 
That contraption has been for sale for many years. Germans aren't as stupid as some might think, hence it still is.

The RG frame was a joke when it came out, and similar to the then GSX frame in construction and flimsiness. I asked a German motorcycle journalist- the "technical editor" of Motorrad- at the time how they dared show the (naked!) chassis sans engine of an GSX in the centrefold of their publication. It showed this was but a cheaply made copy of a featherbed with flimsy dimensions of the aluminium parts that, to cap it all, was bolted together at the r.h. frame loop. The best possible advert to NOT buy a GSX....

Why one would willingly put the engine into that frame escapes me, and I know of no successes of the bike. If it had any, it must have been on (very) local club level.
 
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