E-ODIN - Diskussionsthread

[bob2.0]

I am about to check out the brakes on this bike. They have worked so just ridden the bike so far.

But the front brake, right lever, feels like it is sticking. I will investigate and clean up any corrosion.

I thought this was a combined brake system.

Is it meant to be?

I mean, on my bike, it has two front calipers, both fed from the right lever.

I'd have thought the point of having two discs on a bike like this (that only needs one) is that one disc is on the same circuit as the rear, and the other is to the right lever.

Maybe?

I am just re-imagining what I thought might have been how it worked.

What is the deal here?

Why has it got twin discs at the front?

One 'good' disc and caliper would be better than this poor construction, I think?

[Zimmermännche]

I am about to check out the brakes on this bike. They have worked so just ridden the bike so far.

But the front brake, right lever, feels like it is sticking. I will investigate and clean up any corrosion.

I thought this was a combined brake system.

Is it meant to be?

I mean, on my bike, it has two front calipers, both fed from the right lever.

I'd have thought the point of having two discs on a bike like this (that only needs one) is that one disc is on the same circuit as the rear, and the other is to the right lever.

Maybe?

I am just re-imagining what I thought might have been how it worked.

What is the deal here?

Why has it got twin discs at the front?

One 'good' disc and caliper would be better than this poor construction, I think?

Du hast ja noch eine ältere Odin. Kann sein, dass da das Bremssystem noch kein "richtiges" CBS ( vorne/hinten) war. Steht auch alles irgendwo im Forum. Bei Jeff Jordan ist es, glaube ich, auch so, dass die vorderen zwei Bremsscheiben mit einem Hebel betätigt werden und die hintere Bremsscheibe mit dem anderen Hebel.
Bei den neueren Odin ist ein Verteiler am vorderen Rahmen angebaut, ein Bremshebel betätigt darüber die linke vordere Scheibenbremse und die hintere Scheibenbremse, der andere Hebel betätigt nur die rechte vordere Scheibenbremse.

Und passende bessere Bremsscheiben zu den Standard Bremssätteln sind nicht wirklich zu finden, auch auf Nachfrage bei Herstellern wie Brembo, TRW... nicht. Steht hier auch schon in einem extra Beitrag.

[bob2.0]

It seems I do have an 'original' Odin and the future possibility for adding a combined braking system explains why it has two discs on a low performance machine.

The reason this is relevant now is that I have ordered some of the BN125 struts to try out on this bike. This will mean making up an adapter plate for its caliper mounts.

They do have two, but I see no reason to put both on.

As I have to make an adapter plate, there is no reason to make one for the existing calipers, I can make a bracket for 'any' 300mm caliper.

I was thinking of using a BMW F650 caliper. They are Brembo (original equipment), fit a 300mm disc, and are plentiful having been made in continuous production for 30 years (as the bike evolved, they kept reusing the caliper on the F & G650, 750, 800 and GS models).

Thoughts?

Should I consider fitting a new Lexmoto disc, that seems to fit the dimensions?

[bob2.0]

Of course, the other idea is that I connect a front disc and the rear on one circuit, per the later design. I am not sure if I need to add a proportioning valve, but I suppose I could.

[Miguello80]

Should I consider fitting a new Lexmoto disc, that seems to fit the dimensions?

It works for me - https://www.elektroroller-forum.de/view ... 22#p368922

[bob2.0]

It works for me - https://www.elektroroller-forum.de/view ... 22#p368922

Could you please also kindly, remind me of the Brembo calipers you have used? I have searched, and do not find your post.

I have also found the Lexmoto disc while looking. I also found a couple of other options that might fit.

Are they plain holes on the Lexmoto disc, or with shoulders?

I was looking at the 06/07 GSXR fitment, that is a 310mm rotor diameter. A little extra leverage on the disc, and I would consider fitting only one disc, no need for both (and fewer parts to go wrong)?

Your thoughts on fitting one disc? (without the combined braking system)

[bob2.0]

Ah.

I now see the issue with the rear brake. I had wondered why there was so much talk of it here.

I thought that squeaking and groaning was the front. It's the rear!

Am I right to say they use the same caliper on the front and back?

What is the alternative floating disc, that people have found works best for the rear?

I assume this is a long job, with at least partial removal of the wheel?

Sigh!

[Miguello80]

Could you please also kindly, remind me of the Brembo calipers you have used? I have searched, and do not find your post.

Check page 170 in this thread.
Front - P2 38 (2 pistons, 38mm) - OEM code 20294512
Rear - P2 34 (2 pistons 34mm) - OEM code 920B85291
Disc - BRDF031 - holes with lip / shoulder

I was looking at the 06/07 GSXR fitment, that is a 310mm rotor diameter. A little extra leverage on the disc, and I would consider fitting only one disc, no need for both (and fewer parts to go wrong)?

No extra leverage on the disc. Calipers is on the bracket, bracket is mounted on forks, force on caliper when braking is parallel to disc, not perpendicular.
You can use any disc that would fit mounting holes + inner diameter, you just have to make a new brackets for calipers. But before that check your calipers, for example my P2 38 are designed for 300mm discs max. For bigger discs I would have to use different calipers and because most of moders calipers are radial and I did not want to make more complicated bracket for radial calipers I chose these.
In your case I would stay with original calipers + put on new discs. 310mm vs 300mm disc does not mean significantly better stopping power.

I thought that mounting P2 38 on factory brackets will be ok but I have to move it 3-4 mm from the axle, there is no problem with them, just different design and different brake pads that are positioned differently to the disc than factory pads. I will make a video soon.

Your thoughts on fitting one disc? (without the combined braking system)

I would stay with 2 discs. I upgraded to better calipers = better stopping power so I see no sense in taking one disc off = less stopping power. I am not smarter than manufacturer and I am affraid neither you are.
Yes, you can upgrade to CBS, just add a valve and change brake lines and use two more brake pads (and save front brake pads a little bit). E-moto has lower center of gravity than gas bikes so on them rear brake is more efficient than on gas bikes (and less dangerous when you are skilled rider). I use only rear + left front brakes for light braking and all brakes for hard braking (if there is a danger of rear wheel slide then only front brake).

[jeff-jordan]

Muhehehe, finaly I replaced warped factory discs with new (floating) brake discs. I know, I did not mounted them symmetrically "wave to wave", I noticed it later and I like it more this way.
....
For example here: https://www.ebay.com/itm/176249083864 and with better specifications here: https://www.cmpoparts.com/part/BRDF031

Just to let you know: I ordered the discs for the Lexmoto at cmpoparts.com and they arrived here today.
Outer diameter was advertised with 300mm, but they are 298mm, so they should fit without any problems with the genuine calipers.

But to avoid false expectations: these discs are no floating discs!
In fact they are solid single piece steel discs, in floating disc design (which is absolutely ok for me and my E-Odin 2).

[Zimmermännche]

Muhehehe, finaly I replaced warped factory discs with new (floating) brake discs. I know, I did not mounted them symmetrically "wave to wave", I noticed it later and I like it more this way.
....
For example here: https://www.ebay.com/itm/176249083864 and with better specifications here: https://www.cmpoparts.com/part/BRDF031

Just to let you know: I ordered the discs for the Lexmoto at cmpoparts.com and they arrived here today.
Outer diameter was advertised with 300mm, but they are 298mm, so they should fit without any problems with the genuine calipers.

But to avoid false expectations: these discs are no floating discs!
In fact they are solid single piece steel discs, in floating disc design (which is absolutely ok for me and my E-Odin 2).

Lustig, ich habe mir letzte Woche auch die Bremsscheiben mit der Bezeichnung BRDF031 bestellt, über die Fruugo Seite.
Hab da vorher noch nicht bestellt, mal schauen wann die Teile kommen.