Installation Problems With My New Kit

[trex]

that URL links to a 42T ring for your BBS01

 

[Kuorider]

Try, Shimano 7 speed 32/12 CS-HG20-7 cassette on the 8 speed freehub over a shimano 4mm spacer. Shimano or KMG 7 speed chain , Deore hanger and 7 speed rapidfire slm310 shifter. Same overall spacing as the 6 speed. The shifter indexes it correctly. No chainline problems with this set up on my Bewo cd build. Cassette from the woolly hat shop on the bay £10.
I find I only use 3 gears most of the time.

 

[anotherkiwi]

That is the one I will change to if my 11-28 doesn't work out. 7 gears are plenty. For steep hills a double chain ring modification is a good idea. You can buy spiders for your bafang and choose any chainring you wish. I think hammering the chainstay into shape is a good idea if done with a gentle hand.

 

[Kinninvie]

A Lekkie bling ring is currently only £60 delivered from here
http://www.brightonebikes.co.uk/store/p7/Lekkie®_Bling_Ring_BBS01/02.html
Bafang dont do one but this will probably be a perfect fit for where your motor is now as it sits 5mm further in but 4.5mm further forward.

 

[kernow60]

A Lekkie bling ring is currently only £60 delivered from here
http://www.brightonebikes.co.uk/store/p7/Lekkie®_Bling_Ring_BBS01/02.html
Bafang dont do one but this will probably be a perfect fit for where your motor is now as it sits 5mm further in but 4.5mm further forward.

O.K. thanks now I know that there aren't any available from Bafang, a "bling" ring looks to be my best, and only bet.
Thanks all for your help & advice...........

 

[tommie]

Had similar issues with the first two rear freewheel/cassettes i tried, chain line way out at the big cog and chain skipping when it got down to the smaller one.

Solution for some reason was one of these (the 11 - 34 version), see here http://www.sheldonbrown.com/mega7/


Although now discontinued I was fortunate to track down a few from a bike shop out in portugal.

 

[Fordulike]

So what I propose is to obtain and fit a 42t chain-ring which coupled to the 24t gives me 47.6 inches, it's obviously better but doubt if it's going to be enough.

Yes, but don't forget that you will probably regain the use of the other two gears, so you'll have a 42T chainring coupled to the 32T rear cog, for monster hill climbing. Also, once you have your programming cable, you can unleash a few more watts

They usually come from the Bafang factory strangled for power!

 

[Kinninvie]

I use this 8 speed 11-34T cassette and its perfect.
Especially at less than £10 a time.
http://www.halfords.com/cycling/bike-parts/gears-drivetrain-cables/shimano-cs-hg41-8-speed-cassette-11-34t#tab3

 

[anotherkiwi]

Solution for some reason was one of these (the 11 - 34 version), see here http://www.sheldonbrown.com/mega7/

Although now discontinued I was fortunate to track down a few from a bike shop out in portugal.

Do you have the address? I looked all over for just one of those last year...