The joint of the aluminium brake surface is welded for better brake performance and the rim has wear indicators to advise when the rim needs to be replaced and built on 240s hubs these have been winning Grand Tour races and local crits for many years. The legendary Ratchet System® drive system will last for many years and provide all the performance needed to ride in a pro peloton or on your local shop ride. Fast Forward Carbon Fast Forward 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 Fast Forward add some higher modulus sheets to increase stiffness locally. Fast Forward 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 fibre can handle tension very well, Fast Forward has 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….
– Fast Forward F4R Alloy/Carbon Clincher 240s Wheelset Performance Wheels – £981.75 (RRP – £)
