Bakker frame, who knows about this one ?

[SimonH]

Hello, first post!
I just  acquired this one, I know it’s a Gurls blouse engine but will use that as an anchor and swap in a GSX engine. And also this is the only English speaking forum talking about Nico Bakker frames. 
Who can tell me more about this bike/frame ? It’s from early or mid 80’s I believe. It was registered in Sweden 20 years ago but I don’t have the Swedish registration papers yet.
anybody know where to look for a frame number/id on the frame? It’s not on the headstock. I will mail Bakker Framebouw and ask for info and post their response. 
More pictures coming.

Simon, Copenhagen. 

[stockcar]

Welcome along, not sure where they are but there are RTFR around somewhere and its best abided to….

 

RFTR (read the fuckingh rules)

[SimonH]

Why would you take your time to answer like that? 
 

[Enjoythesilence]

Hi there

Nice frame,i don`t know anything about the frames.

The mods are not very keen on pics of any motor not a suzuki,as stock says its in the rules(rtfr) and they are gods on this website

[stockcar]

9 minutes ago, SimonH said:

Why would you take your time to answer like that? 
 

The forum has very strict rules and is simply a friendly nudge to abide by all of the things that we law have for years…..

we very much like pix but the rules are Suzuki engined only, not my forum…..maybe one of the mods can point them out - simply go in General and say Hello, etc……

it is (fairly) friendly…..

[SimonH]

The reason for posting pictures of a bike with a Gurls blouse engine in it on this forum, is because i believe the frame was intended for a Suzuki engine and I will, like i said, put a Suzuki engine in it … But i am looking for information on the Bakker frames before starting the project. Please strike me gods if you do not see the idea of collecting rare information on your site and saving a great bike with a Suzuki engine. Because then I would much rather talk to the nice Kawasaki people and stuff a GPZ engine in it….!

[dupersunc]

Ignore the forum police Simon, they mean well but get a bit over zealous.

Bakker should be able to supply you all the info you need.

Looks like a cool project. Kerp us updated. 

[stockcar]

 

[Dezza]

I agree that the obvious first port of call would be to contact Bakker's (if it still has the original frame number on it) so they can cross reference in their records what engine it was originally built for. And if this is a large Suzuki GS or GSX, we will all here be very keen on seeing a new build thread when it goes back to what was intended .

[SimonH]

Still have not found a number on the frame, I hope someone will know where to look !

more pictures while I wait for Bakker Framebouw to reply. 

[Havoc]

#Lebowski has a relationship with Bakker from when he built the awesome F1 I have in the shed. He may have an 'in' with Nico and his records. Having said that all my data says my F1 can't possibly be as old as the paperwork provided. It's legally registered as a 1982 bike with paperwork to back it up, but I don't believe the factory was building frames like this in '82  

[SimonH]

15 hours ago, Havoc said:

#Lebowski has a relationship with Bakker from when he built the awesome F1 I have in the shed. He may have an 'in' with Nico and his records. Having said that all my data says my F1 can't possibly be as old as the paperwork provided. It's legally registered as a 1982 bike with paperwork to back it up, but I don't believe the factory was building frames like this in '82  

Nice bike! Maybe i should ask Lebowski about Bakker then!

[SimonH]

I found the frame number! On the part of the frame where the swingarm pivots. Number 0027. 
On this forum there is a thread about number 0024 and the frame looks very similar. 

[TLRS]

If you find some information in dutch and need translation, don't hesitate to ask okay?

[SimonH]

7 hours ago, TLRS said:

If you find some information in dutch and need translation, don't hesitate to ask okay?

Thank you very much, I think there is a big change of any original papers being in dutch!

[Ivan]

Multiple people overhere from Holland so that wont be the problem 

[SimonH]

Got a reply from Bakker, apparently I ended up in there spam folder.

They are basically saying the frame is made for PVM, and since the frame number is on the swing arm pivot part of the frame it's made for the track. They don't have any TÜV papers for the frame, but say PVM should so I have contacted them. Bakker supplied me with a PDF with the catalogue and price lists that was made for the frame both by Bakker Framebouw and PVM. But apparently the frame is a PVM Gurls blouse racer but would love if any of you Dutch speaking folks could read the PDF and tell me about the TÜV parts mentioned, I will of cause get google working with translating it for me but that usually just adds to the confusion.  

The plan is still to get a GSX1100 engine in it

Edited July 15, 2025 by SimonH

[Blubber]

As a Dutch guy i can tell you it is written in Deutsch... aka German.

 

[Pedda]

German guy tells you the crap quality of that scan makes it impossible to gain valid info out of it.

[Dezza]

On a computer screen the text quality on the jpeg files is fine, and is ok to save and then zoom in on. I can't speak or read German though.

[Ivan]

Its late overhere and beeing tired I just took a brief look at the difficult to read scans on mobile phone;

You meant Tüv approved frame for specific types of engines/bikes?

 

Tüv is German MOT and all replaced parts on a bike in Germany need to have Tüv aprovement. For example 17 inch tyres on a gsx1100f are difficult cause only 16inch wheels are standard so there is none/minimal Tüv approved 17 inch tyres for that bike. Almost every part you change on a bike in Germany needs TÜV appeovement and the way I understand this frame is Tüv approved as replacement for the original frame for mentioned type of bikes. 

 

Edit: when you build a bike with the parts as described on the scans, you ve build a bike with Tüv approvement so no problems when its got its German MOT each year.

 

Please correct me if I am wrong but difficult to read for me, my German aint perfect but also not that bad 

Edited July 15, 2025 by Ivan

[Jelly]

Welcome @SimonH, you can start already by taking that engine out of the frame  

Looking at the documents and reading you are in Copenhagen, what does the Danish road instance have to do with the German Tüv? This paperwork doesn't say any other than that it can be supplied with Tüv. 

You best contact PVM https://www.pvm.de/en

[Gixer1460]

If Bakker did build the frame for PVM - a German company - it stands to reason a) all the literature / brochures would be in German and b) that the frames would 'generally' comply with TuV rules (if it was to be used on the road) As Bakker have confirmed that this frame was intended for racing, it may have been modified such that it wouldn't be TuV compliant - in Germany. But as the owner is in Denmark the TuV issue should be immaterial but I guess compliance with Danish build and use rules will be required if the bike is to be registered for the road. We have the MSVA test in the UK for home built vehicles to establish valid construction and identity - something similar is likely to exist in Denmark! 

[SimonH]

So first of, embarrassing  I didn't notice the brochures being in German and not Dutch, I just saw the Bakker Framebouw logos and im not good in German any ways.

But yes I contacted PVM in germany and they said that their archives does not go that far back.... A bit weird I think since its a company doing more or less the same thing now as they did in 1985. So the problem now is, Bakker saying all TÜV approvals should come from PVM.

And the reason why I keep talking about the German approval system is, it's what is used in Denmark as well. We don't TÜV approve stuff but if its TÛV approved its legal to use no questions asked. 

We don't really approve stuff here as you do in Germany, UK or Sweden or maybe anywhere else in the world since the danish government hates anything motorsports or just vehicle-fun-having related. Of cause anything in Denmark can be approved if your pockets are deep enough. I have seen the approval papers for a 1970's Gurls blouse CB500 Airbox being replaced with pods and the price was 5000kr (around 670 eur) I think. So if I can get any TÜV papers saying this frame with a whatever 900-1100 engine and 18" wheels and the 38mm Marzocchi forks are OK then it can be registred. But since its been on plates in Sweden im not giving up yet, the rules also says any bike registred in another EU country can be registred in Denmark as long as it and go though our MOT system called "syn" with lights and noise and so on.

Would still love to get in touch with anybody in europe running a frame like this on the street. Will get the Gurls blouse engine out, a friend just dropped of a GSX1100 block for mock up but right now the easiest way to store the Gurls blouse engine is either in the bike or the harbour, and its already in the bike ... So.

Will have to wait for the swedish papers before tearing to deep into this project.

[SimonH]

One small but maybe significant update. Bakker Framebouw made me a certificate stating they made the frame #27 for the Suzuki GSX1100 engine! Still waiting for the swedish papers but I know the former owner found them.