Haibike front cog

[GBCS]

Can anyone advise as to how the spider that carries the front chain wheel is attached to the shaft ?

I have removed the lock ring, but the spider is firmly attached to the threaded shaft.

I can't find a schematic on line.

Thanks

 

[Artstu]

This should help.

 

[GBCS]

Thanks for that.

The prising the spider off with a big screwdriver makes me shudder !

 

[Artstu]

Me too, because that centre bit wobbles as well, even when the chainring is on tightly.

 

[GBCS]

Have you actually tried doing it ?
If it is only "pressed" on, I will use a small gear puller. I just didn't like the idea of forcing it over the threads on the larger O.D. spindle.

 

[Artstu]

Yes I've removed mine to clean out the cover. It is just a tight fit, it took me a while to get it off as I didn't want to damage anything. It sits on a larger diameter area than the threads I seem to remember, an octagon section.

 

[EddiePJ]

Nice clear video spoilt by Neolithic tools and use of.

 

[GBCS]

All sorted and back together with the larger cog supplied by Martin.
Thanks for the help.

 

[Pipion]

What size cog did you go for and how has it changed the dynamics of the ride?

 

[GBCS]

I've gone for a 44t. I won't get out on it until Saturday, so I'll update the thread then.

 

[Martin@e-bikeshop]

Hi,

Spider tools back in stock now - http://www.e-bikeshop.co.uk/eBike-Spare-Parts/bosch-spider-tool

Regards
Martin