F6R-c Celeste

F6R-c celeste team edition

Carbon/alu clincher wheels with 58mm deep DARC profile rims and FFWD hubs.

 

The F6R-c for clinchers are now available in the official Celeste color. This is one of the training wheel sets for Team Vacansoleil-DCM where the riders make a lot of kilometres with these.

The F6R-c is a fast wheel set for flat courses in races or for touring, but handles great on hilly terrain as well. The 58mm aerodynamic and stiff rims maintain speed easily. 

LOW DRAG
HIGH DRAG
ACCELERATION
CONSTANT SPEED
HILLS
FLATS

FEATURES

  • Superstiff High Tensile TC35 Carbon with integrated alu rim
  • 58 mm deep rim - DARC™ profile
  • Welded (seamless) alloy brake surface
  • Wear indicators in alloy brake surface
  • Celeste FFWD decals under Matt clear coat
  • FFWD hubs
  • Weight: 1805 gram
  
  • Sapim CX-Ray or DT Swiss Aerolite spokes
  • 20/24 spokes
  • DT Pro Lock Brass nipples.
  • Hand built in Holland

Comes with exclusive wheel bags, quick release set, valve extensions & rimtape

TECHNOLOGY

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Darc

FFWD DARCtm 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. The DARCTM profile is applied to the F6R Clincher, the F6R tubular and F9R tubular rims.

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Carbon

We 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.   We 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 Fiber) sheets. A mixture of different angles to resemble a uniform material. Because carbon fiber can handle tension very well, we have to mix...

ECOM

All rims are molded with a process we call Ecomtm (Equal Compression). This means that the rims are molded with a custom-made air bag that has the inner shape of the rim. This makes sure that the pressure/compression is equal on the entire inner surface of the rim. Result is a practically void less rim section and a smooth wall on the inside of the rim. Without voids, the carbon sheets are completely fused into one system. The rim structure is much better and you can make the rim lighter and stronger. Ecomtm also provides for a smooth inside (no wrinkles!) which is a great feature and not common for carbon rims. This is for instance very beneficial for the nipples. Just imagine how the force of the spoke tension is applied through the nipple seat onto the rim itself. If the nipple seat isn't smooth, the transition of the force isn't clean and optimal. This might cause spoke, nipple or spoke hole failure in future. FFWD rims are made with Ecomtm which ensures longevity.

FAQ's

faq 03 1

The FFWD wheels aren't the lightest on the market. Why is that?

Durability is one of the goals set by FFWD from the get-go. Therefore we demand more of our rims than we would if we had lower spoke tensions in our wheels or if we had weight limits* for our wheels.

For instance, our rims have reinforced strips [1] where the spoke holes are placed, to ensure that high tensions are not an issue. In a regular rim [2], you can't control the specific stresses by layup only. The spoke force is concentrated around the nipple hole. With a pre-defined reinforcement strip [3], we can put the right fibers at the right place. The spoke force is spread out through the reinforced strip and distributes the stresses over a larger part of the rim. The rims are now capable of withstanding a spoke force of 300kgf. This force is around the same as the ultimate strength of the spoke itself. And we only use the best and the lightest spokes available on the market today, so you can imagine how durable the wheels are when the rims are laced up by professional wheel builders.

The fact that we use a clear coat [4] on our rims (except for the Discs) is also done with the focus on durability. It adds a little bit of weight (think of 20g for a F5 rim), but we are pretty proud of our decals and we therefore want to keep them on the rim as long as possible. If the decals weren't protected by the clear coat, they would very likely get damaged by cleaning, weather, etc. Plus it gives you that smooth overall look. Carbon shine all the way!

Furthermore, we feel that the weight factor is much less important than the aerodynamics factor. See up ahead in the FAQs section.

Another factor, although small, is the use of 3K carbon as the outer shell. This material has a slightly lower stiffness/weight ratio than UDF sheets of equal fibers, but it makes up by giving the rims a bombproof feature.

* The F2R does have a weight limit, see FAQ for further information.

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