Our cyclocross bike Rebel S8 is based on a frame made of 7020T6 aluminium alloy. This model is modified for single cranksets. It differs in particular by virtue of the fact that the rear derailleur cable and brake Bowden cable housing are routed inside the frame. 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, rear disk brake is post mount, headset 1–1/8” FSA ORBIT IS
holes for mounting a bottle cage on the seat or down tube according to customer wishes
wheel diameter 28", head tube diameter 45 mm (for connecting to front forks), diameter of seat post 27.2 mm, max. tyre width 35 mm.
download the frame geometry table here
The cable casing for the rear derailleur and rear brake are inside the top tube of the frame, which allows the competitor a great grip on the bike when running.
|Internal cable routing|
|Detail output bowdens||
Both the cable for the rear derailleur and the hydraulic hose for the rear brake are located inside the frame top tube. Both cables emerge from the top tube and run externally along the rear stays to the area of the rear dropouts.
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.
|The rear disc brake is fixed to the frame using the post mount system. Diameter of rear disc 140 mm, a 160 mm diameter disc can be used if an adapter is used. Based on our experience, we recommend the use of a rear disc of diameter 140 mm and front disk of 160 mm diameter for racing.||Disc brake mount|
|Without front derailleur||
The selection of a single crankset is a very pure solution in connection with the frame. No further stops for the front derailleur are necessary. It is impossible in difficult situations during a race, when derailing to a higher or lower chainring results in a chain drop. With their incredible range of 1x11sp., they cover virtually the same range as the former classic with double crankset if the right cassette is chosen.
SRAM Force CX1 cranks with 38 tooth crankset are shown. The range has now been expanded to include the sets SRAM Apex, Force and Rival. The cranksets are manufactured in a range of 38-54 with two-tooth increments. Shimano has not reacted to the 1x11sp. sets for cyclocross, and so the offer currently is only SRAM. You can find out more on the Configuration page.
Cassettes are available in the range 11-25, 11-26, most often 11-28 and 11-32 teeth are used. Cassettes with an incredible range of 10-42 teeth are a new item for 2017!
|Detail on rear derailleur|