Hi, It is unclear whether SS will restock those "out of stock" adapters for QR 135mm. I think those Switch hubs are rebranded Novatec: https://singletrackworld.com/forum/topic/which-novatec-hubs-are-superstar-switchswitch-evoswitch-ultra/ So you can get some spares for those hubs if you search a bit.
Superstar Comment - the hubs are discontinued Taiwan made products and we
When I came to fit it on my cranks I found that my existing chainring bolts were too small a diameter by fractions of a mm to do up in the self contained threads on the ring. I tried some E13 spares I'd got and even they were too small a diameter. Nothing on sales side of the site mentions you will need alternative single ring chainring bolts to mount this ring and for the money personally I th