Last night I fitted 35mm SKS raceblades to 28mm clement strada lgg, on open pro rims.
They fitted well, the stays were already cut as I'd fitted them over 25mm paselas before and I just tweaked the length slightly and they fitted fine. Different guards but 35mm SKS still, hope that helps.
Mine fit, bit tight tough. Rims are 20mm internal, would be easier with a slimmer one.
If you have problems bend the stays on the mudguard out to give you more room, or get some 40mm PDWs
Will 35mm SKS longboards fit over a 28c tyre? Would rather avoid big wide 45mm granny mudguards...