Bakker 443

[Tobyjugs]

Feb 5, 2022 11:40:45 GMT 1 midlifecrisisrd said:

Could you not get a bit welded on the rear of the brake pedal in front of the pivot so it rests on the under edge of the hanger bracket?

Steve

Hi Steve i never thought about that. These levers are a slighgtly other colour so i expect they are anodised.

Still better than my spring idea. 

[4l04ever]

The angle of the leverage to the rear master cylinder looks like to could be improved to make it more effective, as it looks like as you press the pedal down, most the force will try to push in the wrong direction. If you have to address this, you may be able to address the brake pedal stop at the same time.

[4l04ever]

You could use the stop of the master cylinder to stop the lever going up, as you can rotate the lever on the shaft to get the correct positioning for your foot.

[Tobyjugs]

Hi Rob, well spotted.

At the moment it all works but is a comprimise. The lever that is attached to master cylinder pushrod is at that angle so that it hits the expansion chamber and stop the push rod from falling out the rubber boot. If that happens there is no brake anymore.

Another idea i have is to make a small "L" bracket that can be adjusted in height and tighten it to the back of the rearset. I just don't want to cut into the rearset (Fugly).

Ideally it would be nice to have the push rod connested to the master cylinder as you mention,

[midlifecrisisrd]

Is there enough meat in the pedal to drill/tap an m5 thread so a pin can be screwed in the back of the pedal instead of welding?

Steve

[midlifecrisisrd]

NK just uses a peg into one of the machined recesses

Steve

[Tobyjugs]

Feb 6, 2022 11:43:17 GMT 1 midlifecrisisrd said:

NK just uses a peg into one of the machined recesses

Steve

This is good idea. Maybe a sliding pin in the brake lever slot which can be tightened.

[tipfinchy]

good to see you are still progressing with the bike , that Suter rear master looks trick , i remember wanting a swingarm from them for a KTM and it was over three and a half grand 15 years ago 

mart

[Tobyjugs]

Feb 7, 2022 0:36:59 GMT 1 tipfinchy said:

good to see you are still progressing with the bike , that Suter rear master looks trick , i remember wanting a swingarm from them for a KTM and it was over three and a half grand 15 years ago 

mart

I wanted a rear master cylinder with a built in resevoir. If all the specifications are correct then the Suter is cheaper than a Brembo for the same spec.

That's a crap excuse as i really wanted one for the NAME,

The funny thing is i've seen pictures of the MMX 500 used in the IOM TT and it uses a Brembo and not their own make 

[muttsnuts]

just drill and tap the rear set and use a nice bolt to make a stop up

[marrcel]

Another idea is to flip the arm upside down.

[Tobyjugs]

Mar 12, 2022 19:15:47 GMT 1 marrcel said:

Another idea is to flip the arm upside down.

Hi Marcel can you explain what you mean as I can't visualise your suggestion.

[marrcel]

Well at the mo your beam is curved down. Take it of and other way around so it's curved up. Then you have to change the pedal the other way from inwards to outwards. Hope you can visualize that

[Tobyjugs]

Mar 17, 2022 23:12:29 GMT 1 marrcel said:

Well at the mo your beam is curved down. Take it of and other way around so it's curved up. Then you have to change the pedal the other way from inwards to outwards. Hope you can visualize that

That I could visualise but I still need a stop. Hopefully made and fitted next week.

[abar121]

You'd also get a better angle on the m/c with the arm flipped and the m/c mounted on a small bracket.

[Tobyjugs]

Feb 6, 2022 10:08:35 GMT 1 4l04ever said:

Ok thanks for everyones input, I've decided on a plan of action which doesn't require reversing the arm.

The plan is to make a small sliding "cam" (it's going to be like a wedge) which sits on the underneath of the rearset. Fitted to the back of the brake arm roughly under the area of the E&R from the "Bakker" word will be a small pin which will protrude out and contact the underside of the wedge. This position might change if i have clearance issues with the exhaust pipe when i depress the lever.
Then i can adjust the angle of the actuating rod lever for a better position and leverage.

I just have to wait on the man with the milling machine !!! IF it take's too long i will break out the saw and files 

[Tobyjugs]

Well my plan of action has changed a bit bit but i finally found a suitable solution. I gave it to PS Tuning.

The idea with the peg meant it was too close to hitting the exhaust pipe for my liking. This meant the stop also had to be extended on the rear-set part. This stop was made eccentric




Small stop on the brake lever.



   

The eccentric stop and where it is fixed into the rearset




The finished item. I just need to make a small adjusting tool to complete it.
When tested properly the rear brake worked much better than expected. I think due to its size i wasnt expecting much from it.

[badger1]

Now that’s nice and neat.

[mouse]

Brilliant Tony!

Mouse

[sidney81]

Lovely work 😎

[Tobyjugs]

Sorry chaps I've missguided everyone.
I didn't make the brake stop, after several ideas and attempts time was running out as I had signed in for the Rockanje Classic TT.

I had to work away again and I know things always take longer than planned.
With this in mind I asked Pieter from PS Tuning if he would let me jump the que and prepare the Rear set for when I finish my job.

I told him all my ideas and what I liked and didn't like.
He told me it was ready but didn't send me a picture. I thought this was a bit odd and prepared for the worse.

When visited him for a chat and collect the rearset he was kind off worried I wouldn't like what he made. It took a lot of persuasion to let him now I really liked it.

[Tobyjugs]

Feb 8, 2021 21:21:12 GMT 1 Tobyjugs said:

Another thing i have to make was a pad that the back of the tank hooks into. I wanted to make it out of rubber.

I found a piece of rubber on a car ferry and with the permission from the deck officer i took it home.





I then got to work and chopped it up, filed it and sanded it.

   


   


              


              



I'm happy with the basic design but it's too heavy. I was thinking about drilling lots of holes in it, but after all the printing activity going on i decided to tweek the sizes a little and get this printed with a honeycomb matrix an add a little bit of rubber where the tab sits.

I'm now on MKII with the tank pad.
One man i know is very handy with a printer and i asked him if he could print a mould for me so i could make a lightweight rubber pad.
He said that he would first have to make solid version that fits and from that he could reverse it. After he made the solid version and i fitted it to the bike i realised that this is even lighter than the rubber mould version. After another chat the test piece was modified and printed.





As you can see it has two small bronze inserts which means it can be held in place with two small screws. A 3mm rubber strip was glued to the face of the pad that makes contact to the tank. This shaved another 150 grams off the weight of the bike and looks a little more professional 

[Tobyjugs]

With the back brake pedal stop finished. The bike is now ready without doubt for some proper testing on a circuit.

Metett was penned in along with the Rockanje Classic Races. I was delayed at work so missed Metett and arrived home a week before the Rockanje event
For Rockanje i had to drill and lock wire a lot of bolts, make two small catch tanks and put some absorbant material in the belly of the fairing.

I came home and found the front brake lever guard broken and the front wheel fitted in the wrong way around and the front end in a bit of a shamble.

I glued the plastic part of the brake guard back together  , Unfortunately Kees who was helping me in the evenings walked into the lever guard and snapped it off. A quick call to a freind and some pictures and dimensions sent over the phone the following evening i had a freshly printed lever guard. What a world we live in. If i told this story 15 years ago you would not believe it.




Actually it was going to be a very busy week. I built one RD up from just a overhauled engine in a frame for the Distinguished Gentlemens Ride(road legal) and finish off the instalment of my 400cc engine in my bike, which was adjusting the carbs to suit the engine and bespoke pipes. Plus make this bike and the Bakker bike comply to the scrutineering rules for the Rockanje Races.
To cut a long story short i managed to get it all finished on the Friday morning only to be scuppered by a fuel pipe.

The fuel pipe was very hard to put over the outlet of the fuel tap. This needed a bit more power to push it on. This one simple act caused my back to give out. I could hardly walk and there was no way i could ride the following day. 

With all the hard work done I phoned up a freind Joost and asked him if he wanted to take my place on the blue RD. He agreed but i did tell him the bike he would run had prototype gears and a dry clutch, so it's a risk he has to take to ride it.

Friday night a call was made to a nurse to try and get some strong pain killers. She come up trumps with these. They come in a ampule and normally they put two in the intravenus drip. So Saturday morning i put two in my coffee and after about 20 minutes i could move around a bit without too much discomfort although i did feel very relaxed. 




The boys went for scruteneering and everything was good. Then it was just a case of waiting around until they could go out having a laugh at some of the comments made about the 443. Every now and then an expert walked by and told his mates the bike was a Honda, Aprilia or a special KTM two cylinder 125. I'm Glad the other two heard these stories or you lot might think it was my medication.




No one really paid much attention to the Bakker bike until it was started up, or after the first practice session. The people which did check the bike out was mostly the racers from the event and the event people. The blue RD got a lot of attention from the public, i mean A LOT.





Here are a few pictures of the lads having fun.














Here is a short video of Joost which made me chuckle. Clik the picture to play the video




There are some problems with the Bakker 443 that need to be sorted i will post them next time.

[donkeychomp]

Oh bloody hell. Sorry about your back, hope you recover quickly. The bikes look amazing and I love the 'mini' video!

Alex

[mouse]

Bikes look really great Tony, love the look of the LC.

Hope the back gets better soon.

Mouse

[dusty350]

Sorry to hear about your back mate - I know what that's like
Great the bikes got out on track though - they look fab
Get well soon

Dusty

[4l04ever]

Hope the back heals soon. It looked a great event :-)

[Tobyjugs]

Thanks for all the comment lads, my back has been a problem on and off for years.

Ive been offered a place in a similar event for next Monday in Oss. First i have to see if i can iron out the problems i have with the Bakker Bike.
The good thing is i will be with two very experianced racers for support.

[donkeychomp]

Backer bike?

Sorry, sorry...

Alex

[JonW]

Superb updates Tony. Sorry to hear about the back, love the 'home IV'