SRAM i-motion9 IHG - rear 20T sprocket required

[Sham69]

Would appreciate any advice or guidance...

I want to replace the rear sprocket but don't wish to pay more than £10 incl P&P. I've searched but only found SRAM sprockets with less than 20T a reasonable cost (in UK) or 20T sprockets at £25+ from Germany.

Two questions:
Anyone know of SRAM IHG 20T sprockets for sale at under £10?
Can I use a Shimano Nexus or Alfine or any other manufacturer's IHG 20T sprocket on my SRAM i-motion9 IHG?

Thanks.

 

[TheDoctor]

According to Sheldon, the sprocket isn't standard, and the hub itself wasn't made for long. I'd buy a few spare sprockets while you still can!

 

[Cycleops]

I'm sure you've already read the Sheldon Brown page on it so future operation of the hub might be difficult. Maybe consider a change to a Shimano Alfine or Nexus as long-term solution? You can often pick them up SH.
https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.co.uk/ulk/itm/202523743351
You'd save a fair bit in weight too.

 

[MichaelW2]

Freemans in Norwich often stock hub gear parts, worth giving them a call.

 

[Sham69]

Thanks for your responses.

I found a 21T sprocket for reasonable cost so ordered it. Hasn't arrived yet but looking into this subject in more detail, I believe I've ordered the wrong SRAM sprocket because it's offset and all info I've seen states the i-motion9 IHG sprocket is flat. Referring to Sheldon's website, it seems the offset sprocket fits all other SRAM IHG's except their G8, G9 and. of course. the i-motion9.

Stuffed! Thanks SRAM.

I will try Freemans tomorrow - Ta.