Each model of wheels has its own characteristics and the rims play a major role in this. Besides the differences in technical specifications, the rim design, braking system, compatibility with tyres or tubes and the weight of the rims are the main differences.
The latest FFWD models for road bikes: the RYOT, RAW and TYRO have the most modern rim design which ensures both the best aerodynamics and handling. All these three models are tubeless ready. The difference between these three models are mainly the type of carbon construction and finish which affects performance and weight.
The rims of the older models such as the F4R, F6R and the TYRO-1 are slightly narrower on both the outside and inside. The rims on these models have the DARC rim design with the charateristic wavy profile.
For graveling, the DRIFT is a specific wheelset and has a modified rim design making it suitable for fitting extra-wide tyres up to 60mm.