Current Projects chat and miscellany

Changing the size of the rear cog or chain ring may solve the tension issues (maybe with some trial and error) looks like you could do with something a bit bigger on the back anyway, is it 52:16?

The freewheel is 19T, i think the fixed is 16T. I would check but it's in the shed and its tipping it down outside. I do have another chainring for the front but its only 32T and i found it a little too slow.