Garbaruk har 38t nw klingor...eller rättare sagt 30 - 44t...
http://garbaruk.com/single-rings/single-chainrings/rc-rings-104-bcd.html
Raceface har också nw klingor 30 - 38t
http://www.raceface.com/components/rings/rings/single-ring-narrow-wide/
/Tord