Stans no tubes ztr hugo 52 fatbike rimpush the boundaries of what fat bikes can do and where they can go with the hugo 52 rims and wheels the first rim to feature true no tubes technology for fat bikes an innovative raised centre and low profile allow easy tubeless inflation roll faster and give unbelievable traction featuresfor fat bike riding racing and adventuringfirst fat bike rim to feature genuine notubes tubeless technology with innovative raised centre rim profile for tubeless us