Plastic protective wheel nut-caps set of 4

These are designed to protect your legs from damage on the wheel nuts when carrying the folded Brompton (or wheeling it)
They also help protect the wheel nuts from damage / corrosion
They are to fit the 15mm nuts used on most Brompton wheels
The nut protectors (since 2019) come as standard on new Brompton folding bikes

Compatible with:
Standard Brompton front wheel (silver and black)
Brompton single / two speed rear wheel (silver or black)

One side can be used with the following wheels:
Brompton BSR - Standard ratio rear wheel - silver
Brompton BWR - Wide ratio rear wheel - silver / black
SRAM rear wheel
The 2nd nut cover can't be applied due to the hub gear indicator chain

Not compatible with:
Shimano hub dynamo
SON hub dynamo
SP hub dynamo
Superlight front wheel
as these wheels all use a bolt through axle which is smaller than the cover.