Tensioning a chain on a Bros

Run_to_da_hills

How do you tension the chain on a Bros? I normally hand the bike in for this but have decided to do it myself this time. What special tools are involved. It looks like a cam system on the rear axle.

Idleater

Ha ha, this is a simple one once you get the knack:

Assuming you have the toolkit that comes with the bike, you do the following:

1) put the bike on the centre stand
2) find the tightest spot of the chain and make sure it is on the long run (rather than at either sprocket.
3) loosen the outer nut at the rear axle - note, you just have to loosen it not remove it
4) put the c spanner into the slots that it fits into on the LHS of the hub as you look at the back wheel from behind it
5) when that is in place rotate the wheel back towards you a small amount.
6) I turned it at most from 1 o'clock to 4 o'clock so it is only a small adjustment needed.

Hope that helps
l.

Run_to_da_hills

Cheers, I have no original tool kit :eek:

bushy...

If you're stuck you can get the grinder to an immersion heater spanner to make a C spanner to move the cam.

Run_to_da_hills

bushy... wrote: »

If you're stuck you can get the grinder to an immersion heater spanner to make a C spanner to move the cam.

Hammer and screw driver , Job done Thanks Lads.

Idleater

Yeah, sorry about that, I meant to put up a not that if you have no toolbox c spanner, you need to jam the ring that would be jammed by the c spanner somehow.

My mistake when doing this job was that I thought that I had to turn the thing with the c spanner and I was wondering "how bloody tight this thing is" then yer man in GP told me to turn the wheel not the ring

L.

madrab

Just be careful if you are doing it again it can be very easy to mess up the inner ring with a screw driver & a hammer

Run_to_da_hills

madrab wrote: »

Just be careful if you are doing it again it can be very easy to mess up the inner ring with a screw driver & a hammer

EvilMonkey

Loads of bros stuff here for future reference.