I'm no expert but I think the answer is in your question.
What? the stem size, or the bolt, or the force?
-I thought 0.4 mm wouldn't be a problem with the use of a shim
-I tried both my LBS if they had a replacement bolt to no avail. Clearly I will get a correct bolt, but why shouldn't a generic bolt work for now?
-When I say a heavy lean, I'm overstating it, it's easily enough that I wouldn't feel comfortable riding.
Thank you for the prompt replies.
What? the stem size, or the bolt, or the force?
-I thought 0.4 mm wouldn't be a problem with the use of a shim
-I tried both my LBS if they had a replacement bolt to no avail. Clearly I will get a correct bolt, but why shouldn't a generic bolt work for now?
-When I say a heavy lean, I'm overstating it, it's easily enough that I wouldn't feel comfortable riding.
apologies for tardyness