As on picture, one 16mm Hole in the sidepanel of the Housing

Let you mount a 16mm Switch, the 19mm sized Nut of the switch sits slightly in the champfered corner

no functional issue IMO

Feel free to ask ANYTIME

We ride our Stuff by ourself... we know what we are talking about (-

Prices includes 19% German VAT

If you order from non-EU countries we will refund you the  German VAT after purchase.

Also Buisness Customers from EU  with a valid VAT Number get the VAT refundet.