hi thankw you for the answer
but i used a normal chain and it's working .
only one of the both chains is a small one...

so cool
ciao

[quote="lololz"]hi
i've got my chain broken on a a-bike city
(i bought my bike three years ago on the official site)
i live near paris in france
how can i buy another chain ?
where do i have to call ?
thanks for your help[/quote]

Have you tried calling the number stated on the official site? Assuming they are situated in England, the number would be +44 870 766 8498.

hi
do you think i can use a normal chain ?

hi
i've got my chain broken on a a-bike city
(i bought my bike three years ago on the official site)
i live near paris in france
how can i buy another chain ?
where do i have to call ?
thanks for your help

Now you mention it about the rear brake, i think that is the problem, since before I mistakenly dismantle the rear brake. Maybe I adjusted it not real good so it's become the problem.
I'll check it again...
thank you Ron...

There really are several possibilities and it is hard to diagnose sight unseen. Check first that it isn't just the brake scraping. The rear brake on the A-bike is notoriously difficult to adjust. You may even want to temporarily disconnect the rear brake entirely and see if the problem is resolved. Check the bearings--when you turn the wheel by hand, does it move smoothly even when turned very slowly, or is there a clunky feel? More difficult to ascertain--can you tell if you put the crankcase back on correctly, aligning the holes in the downpost securely with the circles that also hold that plastic strip?

Oh! :?
I think you'd better contact Mayhem for seeking a solution. Maybe you'll have to bring or send the A-bike back to them and let them fix it for you. :roll:

That's the problem, I already put the strip back into the crack case.

First I try without the strip doesn't feel good, so I put the strip back and still doesn't feel good. Like there is something rubbing each other... :?
and worse I can't bring it to the nearest available dealer coz they only sell no service!

Maybe this is the effect after removing the black plastic chain rubbing strip. However, I'm not sure actualy. :roll:
I think you'd better fit the strip back inside the crank case and see.

Any help on this clanking sound? I haven't ride my a-bike again coz scare of broken again

ok, i finally got the replacement just in 3 days after contacting mayhem...

i finally installed and remove the lip that Ron said.
Anyway, I notice the tire have some "standing hair", which are touching the chain. What does this hair do? Should I better get rid of it or not?

and, there is a plastic piece inside the crank house, which according to the tutorial video as "black plastic rubber chain rubbing strip" and hard to fit it in. What is the effect by removing this plastic strip? Or what it's function?

btw, i finish replacing the chain, but now it have funny sound like something is loose and clanking sound. What is the cause of this?

[quote="Amuro Lee"]How about adjusting the chain tension or just shorten the chain by removing a link from it?
http://www.abikecentral.com/forum/viewtopic.php?f=2&t=225[/quote]
I have found that adjusting chain tension by turning the bearings from M (medium) to H (high) can cause significant damage. The adjustment can cause the chain to be too tight and tear up the bearings. So you really should only do it if the chain is very loose indeed. Removing a link, or a half-link, is possible, but again you need to be cautious not to make the chain over-tight.
I think it far easier and more prudent, if you have the symptoms of a loose chain getting caught and grinding against the tyre, to just shave off the lip on the inside of the bottom of the housing parallel to the chain. You do no damage to the bike and you simply allow for the moderate stretching of the chain which is bound to happen. Of course, chains eventually must be replaced, but you should get at least 2000 km on a chain. Judging from what i've seen, many A-bikers are swapping out chains after only a month or few. The A-bike will perform just fine with a moderately stretched chain for a long, long time, as long as there is somewhere for the chain to ride safely.

How about adjusting the chain tension or just shorten the chain by removing a link from it?
http://www.abikecentral.com/forum/viewtopic.php?f=2&t=225

[quote="Amuro Lee"][quote="mr_1306"]Gonna check about this "lip" that have been mentioned by Ron and get rid of it before the same "accident" happens again.[/quote]
I don't think the "lip" actually causes such "accident".
I've been using my A-bike for 2 years but never get any broken chain problem although I broke some parts within this 2 years by heavily "torturing" the bike. :oops:
http://www.abikecentral.com/forum/viewtopic.php?f=2&t=635[/quote]

It doesn't always cause these problems, but if you have a slightly loose chain and you hear a lot of noise and grinding, or if your pedaling suddenly becomes labored, it is likely that the chain is getting caught between the tyre and that lip on the housing. I had a lot of noise which i just attributed to the chain being too loose, then there were times when the pedaling would freeze up and i could hear grinding. When I finally got rid of the lip, all the noise stopped. Some A-bikes may have slightly greater clearance than others. When i got my third A-bike, this time a Plus, i had high hopes--but after only three rides, the pedaling froze up on a curve, and i was in no place to stop, so i kept going and tore up the bearings on the rear wheel. That was when i decided that damn lip had to go. The chain should have just enough room to drop beside the wheel without getting jammed.

[quote="mr_1306"]Gonna check about this "lip" that have been mentioned by Ron and get rid of it before the same "accident" happens again.[/quote]
I don't think the "lip" actually causes such "accident".
I've been using my A-bike for 2 years but never get any broken chain problem although I broke some parts within this 2 years by heavily "torturing" the bike. :oops:
http://www.abikecentral.com/forum/viewtopic.php?f=2&t=635