ROATA SPATE FULCRUM E-METAL 5 29 2WF-R 6 BOLTS BOOST SHIMANO MICRO SPLINE

Fulcrum's new E-Metal product line serves the steadily growing market share of E-MTB´s. The Boost wheelset is adapted to a conditionally increased bicycle weight and to the forces which the rider and motor act simultaneously on the drive. Every single component of the E-Metal impellers was developed especially for the requirements of E-MTB´s. Features of Fulcrum E-Metal 5: 2Way - Fit™ Ready Reinforced Head Spokes - 13% more resistant Reinforced Disc Flange - 5% more rigid Reinforced Complete Hub Body System - 4x more reliable Differentiated Profile Delta - 5mm Internal Rim Support Structure - 12% more rigid Specific Nipple and Nipple Housing - 7% more reliable Version with 9/10/11-speed Shimano/SRAM HG freewheelTechnologies Asymmetric Rim The asymmetry is designed to improve rim tension, balancing the forces from brakes and sprocket cassette. 2-WAY FIT™ The wheelset can be converted into a tubeless system. The conversion is only permitted for certain types of tyres. For more information, visit the Fulcrum website. DIFFERENTIATED PROFILE DELTA FOR E-MTB The front and rear wheels of a mountain bike have two very distinct roles. While they both must must roll in an efficient manner the front wheel is tasked more with rideability and handling while the rear must carry more weight and transfer power from the drivetrain. The increased weight, added power and more extreme forces represented by the E-MTB only serve to make great design for the specific needs of each wheel all the more necessary. As a result, Fulcrum E-MTB wheels incorporate specific profiles for front and rear. The front rim is more rigid and aids in maneuverability while the rear rim (with lower in profile) is flatter and reinforced to deal with the larger impacts in a more efficient and comfortable manner. The asymmetry makes it possible to leverage on the inclination and length of the spokes to optimise the forces coming from the cogset and from the disc brake during the braking operation. This makes it possible for all elements to work together and create the ideal balance. IN-FRAME The wheels are the contact element with the ground, where the shocks from the ground first discharge. When the suspensions work at maximum capacity, the frame collects and distributes the stress, the system is subjected to really high forces. The wheel-tyre system, in this respect, must guarantee stability during repeated stress. This is why Fulcrum developed an internal support architecture, a bridge insert positioned diagonally, so that it can counter the front shocks. By leveraging the structure geometry, the load is distributed on the whole rim, preventing thus excessive compression. SPECIFIC NIPPLE HOUSING The nipples and their housing are one of the most important element that are taken into account during the design of a wheel. During the development of the new E-Mtb Fulcrum rims, a lot of work was put into this aspect. The housing has been re-designed and now it makes it possible to eliminate completely the nipples' hard work. Thanks to a special housing, with side guides on both sides, the nipple sets on a stable base, perfectly in position, oriented towards the spoke. This makes it possible to make the distribution of the tensions in the rim more even, creating thus perceptible benefits in terms of effort and rigidity: this prevents misalignments under stress and, as a consequence, deformation to the structure. REINFORCED HEAD SPOKES For the new E-Mtb Fulcrum range, only oversize spokes, with a specific reinforcement design on the heads, will be used: this makes it possible to have the best quality of response to stress both in terms of resistance and in terms of transfer of the propulsive power. The technical refinement does not stop here. Changes were made to the profile too, which in some versions is variable. An elaborate section, which varies from 2.2 mm of the head to 2/1.8mm in the thinnest point, makes it possible to save the very important grams without affecting performance. REINFORCED DISC FLANGE A lot of speed and increased weight obviously affect the braking system just before approaching a bend. The disc flange become a fundamental part because it is the interface between the disc, where the callipers grip, and hub, which transfers to the rim the braking force. The new flange is thicker compared to the previous one. It is also 5% more rigid to ensure a robust support when braking. REINFORCED FREEHUB SYSTEM The drastic increase of power and jerks, due to the intervention of the motor, made it necessary to use a freewheel body with tempered steel dedicated gears, which are able to withstand a breaking tension by 30% greater. The laboratory analysis observed the behaviour of the individual ratchets on cycles greater than one billion of uses: the carburised steel ensures an estimated lifetime that is 4 times longer compared to the Ergal model used for the non-E-Mtb models. MICROSPLINE FREEHUB The Fulcrum spirit entails a constant effort to pick up and seize on new trends and keep pace with the most advanced technologies available. This is why Fulcrum adopted Shimano's MICROSPLINE standard as soon as the new racing drivetrains for 12-speed mountain bikes were presented.