Rear caliper dust seals from Wemoto are too wide

[unfazed]

I agree with what is being said, pattern seals can be hit and miss especially on the calipers. I too always buy OEM caliper seals.With regards the FZS600 and FZS1000 rear calipers, the main reason the 600 one is troublesome is that the pads are inserted from the top and it only has 2 small drain holes which are easily blocked and the caliper fills with water and in winter it means saltwater., thus in sets the inevitable corrosion. The 1000 on the other is less prone to problems because the Pads are inserted from the bottom which means the water has plenty of room to drain away.
Both rear calipers have the same diameter pistons and both bikes use the same master cylinder.
There is no need to change seals yearly, just regularly non dismantling cleaning of the caliper to prevent the building up of corrosion is all that is required