> ISA head tube:
> ISA stem & ISA seat post:
> What are the advantages of ISA components?
> Who benefits from ISA components?
> Can ISA components later be installed on a bicycle?
> Which saddles can be combined with the ISA seat post?
> Which handlebars can be combined with the ISA stem?
All handlebar forms with clamping diameters of 31.8, 25.4 and 25.0 millimeters fit the ISA stem.