This Fast Forward F4R Carbon Tubular 240s Celeste Wheelset is no longer available although you may find similar or newer versions below:
Proven aerodynamics and an extremely lightweight are combined in the new F4R, making it the best choice for an all-round wheel set. This carbon tubular wheelset is built around DT Swiss 240s hubs and manufactured from superstiff high tensile TC35 carbon.
|Wheel Size:||700c (622)|
FFWD DARC™ technology is standard on the most aerodynamic FFWD models F9R and F6R. Adding this technology to the 45mm tubular rim makes the new F4R faster.
FFWD DARC technology is short for ‘Double Arc’ which refers to the profile of the rim. The revolutionary DARCTM profile improves aerodynamics dramatically by reducing the drag. Air has the characteristic to stick to its surface and by cre¬ating a negative arc section the air will be compressed more at the positive section. This will increase the pressure just like on the topside of an airfoil. Increased pressure results in a faster airflow and less resistance on the wheel which reduces the drag.
High-Tensile TC-35 carbon
FFWD use High-Tensile TC-35 carbon for the majority of the lay-up. This gives the rim a very high strength with sufficient stiffness to cope with hard application of the wheels. So, rather than use a stiffer, but more brittle carbon type, we chose durability over ultimate stiffness. In some lay-ups we add some higher modulus sheets to increase stiffness locally.
FFWD actually use multiple layers of different types of carbon. Only the outer layer is made from a 3K weave. Underneath this layer are layers of UDF (Uni-Directional Fibre) sheets. A mixture of different angles to resemble a uniform material. Because carbon fibre can handle tension very well, we have to mix up the layers to make the rim stiff and strong enough. Pressure is not a great feature of a fibre. Just think of a string being pushed. But when mixed correctly, the different angles interconnect through the resin to make it resistant to all kinds of forces.
The 3K has a slightly lower stiffness/weight ratio than UDF (Uni-Directional Fiber) sheets of equal fibres, but it makes up by giving the rims a bombproof feature. Why? Because when a strand (or multiple) gets cut in UDF, by crashing for instance, the sheet is compromised and the tear will expand through a larger part of the sheet at continuous workload. A weave will stop the tear because it is intervened by the crossing layer of strands.
Although it is not advised to ride with a 'hole' in your rims, situations can occur where you might not know of a damaged rim or it is not an option to stop right away. Then you have the extra safety of the 3K weave to get you home.
DT Swiss 240s Hubs
These hubs are derived from its MTB version with a closed bearing sealing that offers many kilometres of service free riding.
Based in The Netherlands, FFWD Fast Forward ® is a young high-end brand, specializing in high speed wheels. Carbon only. Period. FFWD’s goal is to deliver fast, lightweight and durable wheels to the Road, Cyclocross, Track & Triathlon market. Our primary focus is on outstanding craftsmanship, quality and design. All spoked wheels are laced and hand built in Holland by master wheel-smith Zoran Kabala in Assen. Each set of wheels is meticulously put together, trued to the ‘Mµ’ and released into the world of speed with a unique serial number. Only the best of ingredients (read components) are being used! High Tensile TC35 Carbon rims, FFWD or DT Swiss hubs, Sapim CX Ray or DT Aerolite spokes, Brass nipples together with a lot of intrinsic wheel builder finger skills ensure top quality and long term serviceability.
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