Well, beginning at the brake rotor...
Unfortunately can a common brake rotor (without heavy mods) not be used, you will need an original brake disc.
At this opportunity to order spare parts you might also take a closer look at the snubber bearing, the 338 part (magnet spacer) and of course the freewheel.
The rear rotor is clamped by the freewheel, a special tool [url=http://www.stridaforum.com/forum/viewtopic.php?f=2&t=3318&start=0][size=200][b][color=#FF0000]T[/color][/b][/size][/url]is required to remove it - do you have such thing?
As always, I'd recommend the purchase of a hook key [url=http://www.stridaforum.com/forum/viewtopic.php?f=2&t=3318&start=0][size=200][b][color=#FF0000]A[/color][/b][/size][/url] for proper [url=http://www.stridaforum.com/forum/viewtopic.php?f=2&t=3434]belt tensioning[/url]
For convenient belt changing you might use the step 13 of [url=http://www.stridaforum.com/forum/viewtopic.php?f=2&t=2751&st=0&sk=t&sd=a&start=45#p7258]this[/url] thread.
(There should be also a few hints for belt, snubber and rear brake caliper un/remounting :wink: )

Did you already check the local parts availability?

After 2 years riding in the snow and rain the belt also twisted and torn.
Initially, I though it was due to excessive torque, so I could manage by avoiding steep slopes.
Now I need to replace my broken belt and it seems that I need to adjust the tension after getting a new belt.
I don't know exactly how to do this, additionally my rear disk is also bent.

:lol: yes!

Thanks. They are even available with reasonable prices in the famous internet book store :)

Maybe interesting:

[url=http://www.stridaforum.com/forum/viewtopic.php?f=4&t=2383#p6153]Re: Rear disk brake wearing fast on 5.0[/url]

[url=http://www.stridaforum.com/forum/viewtopic.php?f=4&t=3214#p6170]Re: Disc brake caliper lever bumps into caliper body[/url]

Just google for "Hayes MX2/MX3", guess you'll find these locally :wink:

Pic from Chainreactioncycles:
[img]http://www.chainreactioncycles.com/Images/Models/Full/8656.jpg[/img]

[url]http://www.chainreactioncycles.com/Models.aspx?ModelID=8656[/url]

[url]http://www.bikestore.cc/bbs47-hayes-mx2mx3-mechanical-scheibenbremsbelaege-p-119656.html[/url]

[url]http://www.ebay.com/itm/DISC-BRAKE-PADS-HAYES-MX2-MX3-MX4-SOLE-/320604132340[/url]

Compared to the above, the original Strida pads are not that expensive, at least at Vanmoof; you'll get 2 pairs for 20 €:

[url]http://vanmoof.com/shop/catalog/product_info.php?cPath=112_126&products_id=213[/url]

Interesting photographs :)

[quote="stridahd"]After approx. 2 years and 3.000 km the belt of my Strida...[/quote]

You also have to add the fact that I am not lightweight and I used it throughout two winters without much cleaning.

PS: I fixed my break problem for now. The brake pads were worn and I had to adjust them. However I guess I will need some new within this year. Any suggestions for a shop with reasonable prices?

[quote="Bietrume"]Wow, it wears very quickly (only 1000km!)[/quote]

No Bietrume, that's a misunderstanding...sorry, my fault...

The above shown freewheel is stridahd's first one, the one we've changed together with Mike.

[quote="stridahd"]After approx. 2 years and 3.000 km the belt of my Strida...[/quote]

But, in fact, 3.000 km are also not that much...

[quote="Bietrume"]Is it a visual effect...[/quote]

Indeed, yes, here's a similar pic, taken 90° to the left of the cam position before:

[img]http://i769.photobucket.com/albums/xx331/Blackstridaaustria/freewheel/sthd05480.jpg[/img]

Wow, it wears very quickly (only 1000km!). Ming Cycles should definitely improve the freewheel design: better surface hardness and better sealing/friction of the bearings.

Is it a visual effect or is the outside diameter of the new freewheel really bigger than the OD of the used one (look at the size of the flanges)? I
f this is the case then the number of teeth is not similar :?:

For comparison, stridahd's freewheel next to a brand new one:

[img]http://i769.photobucket.com/albums/xx331/Blackstridaaustria/freewheel/sthd01480.jpg[/img]
[url=http://i769.photobucket.com/albums/xx331/Blackstridaaustria/freewheel/sthd011600.jpg]1600 x 1200[/url]

[img]http://i769.photobucket.com/albums/xx331/Blackstridaaustria/freewheel/sthd02480.jpg[/img]
[url=http://i769.photobucket.com/albums/xx331/Blackstridaaustria/freewheel/sthd021600.jpg]1200 x 1600[/url]

[img]http://i769.photobucket.com/albums/xx331/Blackstridaaustria/freewheel/sthd03480.jpg[/img]
[img]http://i769.photobucket.com/albums/xx331/Blackstridaaustria/freewheel/sthd04480.jpg[/img]

Long term feedback: No belt problems since the repair service in Vienna.
As I use my Strida about 11 km per working day - This means about 1.000+ km.

Now I'll have a problem with my rear break, but this is another story and yet to be investigated.

Yes, #338 part is ok.

...and you're sure that the 338 part (magnet spacer) is still OK?

[quote="one_half_3544"]
1. replace #338 and leave the current belt - to see if it will continue to twist. After it snaps/twists/exhibits some other abnormal behavior, I'll:
2. replace the belt and see if it twists (with new part #338, but old freewheel).
[/quote]

Ok, the belt still twists with new #338 part (3 times in a row today!), so now I'll replace the belt with a new one.

According to Ming's customer support the torque should be [u][b]6-8Nm[/b][/u].

Many thanks to Sara for the fast reply!
[img]http://www.peppiclip.de/Smilies/assets/images/flowers_kiss.gif[/img]

[quote="one_half_3544"]Did you check it immediately after tightening or after riding?
Could it be that is it damaged not by tightening, but by the wheel movement?[/quote]

On the black Strida I've destryoed the 338 part definitely by too much force -
I've mounted the wheel and wondered, while tightening the bolt, that it didn't become firm.
Therefore the bolt was unscrewed again and I saw the deformed 338 part...

On the silver Strida I'm not 100% sure, but I believe it was the same reason.
I guess that any force, applied to the wheel via the tyre in axle direction, should be absorbed by the wheels flexibility.

[quote="one_half_3544"]I've replaced #338 part and tightened #379 bolt with 5Nm torque - #338 part still looks good after unscrewing =) Will see what happens after riding though..[/quote]

Hmmm, here I'm also unsure, sorry, but I think that the very gently tightening will be below 2 or 3Nm.
2Nm are the lowest amount which can be set on the BBB torque wrench, I do not trust the wrench at this range limit...
I'll try to figure out a safe torque amount asap...