got a new ring as mine is well and truly hooked now. pulled it apart without taking note of how it sat – so which way around does the new one need to go regards all the shaped shift ramps? does it even matter?

does it even matter?

Yes!

Ramps on middle ring face the granny ring, or another way of checking is to make sure the writing/numbers stamped on the big ring face outwards, and on the middle and granny inwards, or towards the bottom bracket.

You know there is also an little tab that should be lined up with the crank?

does it even matter?

If you fit it the wrong way round you will find the chain comes off breathtakingly easy as soon as you put a bit of pressure on the pedals 😳

If in doubt the ugly-looking side of the ring faces inwards

I realise that the ramps are on the inside haha – i meant the rotation of the ring, as the ramps are asymmetrical.

so which bit hole needs to align with the pin on the outer ring, if it matters

As I said, you align the small tab on the inside edge of the ring (at approx. five o’clock in your picture) with the crank.

As above the barely visible bit that looks like a mistake lines up with the crank arm

ahh i see what you mean, gotcha. cheers chaps