Changing a cassette on an e-bike/ granny gear!

[wheeliepete]

Ah, yes that will cause you problems, it's too wide. You need a 1/2" x 3/32" chainwheel to match your chain. 1/2" x 1/8" is for single speed or IGH's.

 

[donkeykong]

Ah, yes that will cause you problems, it's too wide. You need a 1/2" x 3/32" chainwheel to match your chain. 1/2" x 1/8" is for single speed or IGH's.

Doh!

 

[Deleted member 4366]

Check your chain with a 1/8 or 3mm drill bit. If it goes through, you have a 1/8 chain. If not, it's a 3/32.

 

[Deere John]

well, buy a new chain! it's only £7 or such

/edit: update, my browser had not refreshed and showed the latest posts.... whatever

 

[donkeykong]

well, buy a new chain! it's only £7 or such

/edit: update, my browser had not refreshed and showed the latest posts.... whatever

If I buy a new (1/8) chain to fit this chainring, will it be OK on my rear cassette?

 

[wheeliepete]

No, it's called single speed chain for a reason.

 

[donkeykong]

No, it's called single speed chain for a reason.

OK! I'm struggling here!!! Can someone recommend me a chainring (either 42t/44t, 130 BCD, for 1/2" X 3/32" chain, 8 speed compatible)? I can't seem to find anything!

 

[chris_n]

https://www.sjscycles.co.uk/chainrings/38-stronglight-dural-130mm-bcd-5-arm-inner-chainring/

 

[chris_n]

https://www.sjscycles.co.uk/chainrings/38-stronglight-dural-130mm-bcd-5-arm-inner-chainring/

Or
https://www.sjscycles.co.uk/chainrings/38-thorn-130mm-bcd-5-arm-reversible-332-inch-single-chainring-black/

 

[donkeykong]

Nice! Cheers!

 

[Deere John]

Nice! Cheers!

great, yes, the components need to match. Great that you seem to have find the one.

I had also problem with my 1x9 setup. Hard to find with correct BCD, but Garbaruk had all sorts of variations I needed:
https://garbaruk.com/