OP, you're going to give up a significant amount of grip by using wheels that fit the 135 fenders. IMHO, the stock wheel/tire setup on the 1M is already offers insufficient grip and those wheels won't fit on the 135. Anything less than a 245F on the 1M is asking for massive understeer.
Others may know of a compromise solution, but I'd be wary of a setup that sacrifices grip for convenience.
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