Our Cyclocross bike Rebel S8 is based on a frame made of 7020T6 aluminium alloy. A frame of very rigid design with specially shaped rear construction that absorbs the bumps of the terrain excellently. Light weight tubing of large diameter are used for the construction of the front triangle. Thanks to its concept, the frame displays great torsional rigidity, which significantly influences the transmission of the rider's force applied to the pedal during acceleration.
During manufacture each semi-finished item is carefully prepared on CNC machines, and after welding the welds are hand ground. After the frame has been repainted, the welds are solid and optically of highly compact. The variability of production makes it possible to modify the Rebel S8 model, both in terms of frame geometry and in technical details and requirements. Thanks to the highly individual approach to the change of geometry and the boom in junior cycling, we can prepare this frame even for young riders from sizes as small as 44 cm.
replaceable hanger for derailleur, seat clamp, pins for 28" "V" brakes, stop for cantilever brake or hook with seat clamp for small sizes, headset 1–1/8” FSA ORBIT IS
holes for fixing bottle cage to seat or down tube, weld-on for pulley ensuring bottom running of front derailleur, mudguard fixings
wheel diameter 28", head tube diameter 45 mm (for connecting to front forks), top-pull front derailleur, front derailleur on clamp 34.9mm, diameter of seat post 27.2 mm, max. tyre width 35 mm.
download the frame geometry table here
|CNC rear dropout||
CNC rear frame dropouts with stainless steel contact surfaces. Stainless steel inserts prevent quick-release mechanism being forced into the frame. They are replaceable, fixed in place with 3 screws. The rear wheel can be tightened with the required force without damage.
The rear dropouts of the frame are made on a CNC milling centre. The advantage of this machining is that great precision of the milled components is achieved. This technology also ensures a very high-quality surface of the milled parts, a very clean cut and a very pure high-tech designer look.
In its Cantilever version the cyclocross frame Rebel S8 has a clamp welded on between the rear seat stays to hold the cable of the cantilever brake, as is shown in the picture. Small frame sizes do not offer sufficient space to locate the clamp, and so we recommend the use of a seat clamp with hook to replicate the function of the clamp.
The chain hook is screwed onto the inner side of the rear frame dropout and is a highly valuable aid especially for those who often remove the rear wheel from the frame. Thanks to this clever little gadget, when you remove the wheel the chain will stay onto this hook, and you can handle the bike just as you want without having to secure the chain. So, clean hands, secured chain, and the optimum state for transport.
The cable stops are located on the top of the frame top tube so that a competitor can comfortably put his arm through the front triangle and carry the bike when running.
Looking at the construction of the frame top tube and the frame headtube, you can't help but notice the precision hand finish of the weld. After the completion of a weld, it is ground by hand, which eliminates the weld's surface tension and gives a highly finished appearance. A conventional bead weld typical for robotic welding is not used in the case of Duratec frames - the tubes are welded together by high-quality penetration welding, which gives a very elegant join of great strength.