The RAN frame has been developed and engineered in order to astonish the most demanding athlete.
The R&D department has supported the RAN production with the best building knowledge available with the best partner. From the carbon fiber to the moulding production, from the design to the lightest paints; these elements have contributed to the new generation of the Dedacciai Strada frames.
The result of the RAN frame is very clear: 790 grams of weight for the painted M size and 1.115 grams for the coupled frame and fork of only 325 grams.
All carbon tube diameters and dimensions have been reduced without weakening the structure of the monocoque. Specifically the seat tube has been reduced to 27,2 mm from the currently fashionable diameter of 31,6 mm. The rear stay has been designed to offer a damping element on every kind of pavement with 51° inclined seat stays relative to the ground. That inclination creates an off-set of 6 cm between seat stays and seat tube. The advantage of the rear moulding reduces the use of raw material hence the weight of the complete frame.
The engineering process has focused particular attention to the stressed sections: bottom bracket, head tube and seat tube in order to maintain an high stiffness ratio and to maintain parallel alignment of the wheel axes during the pedal stroke.
The main features of the RAN frame are stability and comfortable riding performance. Tapered steer of 1”1/8 on the top and 1”1/4 bottom, which offers balance on every kind of pavement, and superior handling precision. RAN has been equipped with an innovative monocoque carbon fork with carbon steerer tube, crown and blades. The straight blades allow maneuverability, agility and precision, particularly on descents, thanks to a rake of 45 mm.
The rear brake cable is positioned in the top tube through special hidden cable stops. That system reduces total weight and improves the look.
RAN is fully compatible with mechanical and electronic shifting systems by running the cables inside the down tube and in the chain stays, via an internal bottom bracket passage. The refined attention to detail could be seen in the routing of the rear derailleur wire through the alloy rear dropout. The frame is also compatible with cable-operated shifting systems. That double compatibility is obtained by replacing small parts through the “cable stop” system described above. The mechanical groupset allows external wiring cables.
RAN is equipped with PF 30 (press fit 30) with bottom bracket length of 68 mm. Dedacciai offers BB30 and BSA adaptors as spare parts.
UD external layer
Frame weight 790 g for the M size
Seat tube ID 27,2 mm
Electronic and mechanical (external wiring) devices compatible
Internal cables routing for electronic devices and rear brake cable