Questions on heat

[Dafni]

As you know, I currently run a 16/66 setup.

I have an 18 and a 20t pinion here, as well as an 14t. They have to be 5mm, as cou can imagine, that's why it's hard for me to get them. The 18 and 20 are good one, but the 14t looks a bit sketchy.

I don't have any other spurs as yet.

So would you suggest going 18/66? Kinda strange, but I see the point. Actually I would have thought a smaller pinion would give me lower temps. But I perfectly understand that my motor may have been undergeared.

What would be your suggestion? Do you know of any people running this gearing in a simillar setup?