Replacing cassette on hub motor

[Keldin]

I have a 16-inch hub motor wheel with an 8 speed cassette on it. I wanted to swap it out for a shimano hg50 cassette I have that has a lower tooth count. Unfortunately when I removed the wheel I found the cassette wasn't quite what I was used to (see the attached pic).
Teh remover I ave doesn't quite fit and it's recessed in rather than on the surface as on my other non-electric bikes.
Can anyone point me in the right direction as to how I remove this and what type of cassette I need if the hg50 isn't compatible?
Thanks
K

 

[Deleted member 4366]

That's a freewheel, not a cassette, so you need a freewheel tool and yourvHG50 won't fit.

 

[Keldin]

Ah thanks. That's a shame. No experience with freewheels and now I have to find a 8-speed with 11 teeth which seems like a challenge.
At least I'm going in the right direction now
Thnaks

 

[Nealh]

Ask d8veh as he had some 11t DNP's on Fleabay or get one from Cyclezee also seen on Fleabay.
2 from d8veh
http://www.ebay.co.uk/itm/DNP-Epoch-Freewheel-11T-30T-7-speed-for-Electric-Bikes-and-Normal-Bikes-/181713639831?pt=LH_DefaultDomain_3&hash=item2a4efa1997

http://www.ebay.co.uk/itm/DNP-Epoch-Freewheel-11T-32T-8-speed-for-Electric-Bikes-and-Normal-Bikes-/181693987233?pt=LH_DefaultDomain_3&hash=item2a4dce39a1

 

[Keldin]

Ask d8veh as he had some 11t DNP's on Fleabay or get one from Cyclezee also seen on Fleabay.
2 from d8veh

Saw the ones on ebay and noticed the name Looks like those are pretty much the only make available and mostly US from what Google tells me.
I'll give him a shout.
Thanks