Fulcrum E-Metal 5 29" Boost Wheelset
Entry-level set with professional DNA: the E-Metal 5 wheelset by Fulcrum
Pedal-assisted bikes can expand your personal horizons and offer you a new MTB experience. The E-Metal 5 is the perfect product for you to dive into this new world. The 30mm wide rim allows increased ground contact, while the in-frame technology on the rear wheel ensures excellent elastic response and provides additional stability. Superior steering precision and excellent balance allow the bike to become one with the terrain and help you ride better one turn at a time. Riding becomes an immediate pleasure.
Features - Fulcrum E-Metal 5 29" Boost
- Convertable to tubeless system thanks to 2-Way-Fit Ready technology
- In-frame technology distributes the load evenly over the entire rim, thus avoiding excessive compression
- Spokes with reinforced head guarantee high resistance and perfect power transmission
- The inner width of 30mm makes it possible to mount plus-tyres up to 2.8"
Product features
- Use: Trail, Enduro
- Model: E-Metal 3
- Wheel size: 29"
- Rim height front: 23.5mm
- Rim height rear: 18.5mm
- Rim width: 35mm
- Inner width: 30mm
- Rim type: Clincher
- Tubeless system: Yes, convertable
- Recommended tyre width: 2.0 to 2.8"
- Brake Type: Disc Brake
- Disc brake standard: 6 bolts
- Over Locknut front: 15 x 110mm Boost
- Over Locknut rear: 12 x 148mm Boost
- Bearings: Sealed cartridge bearings, adjustable
- Spokes: front 28 / rear 28
- Weight limit: 150kg (rider, bike, equipment and luggage)
Freehub compatibility (choose variant)
- Shimano HG 8/9/10/11-speed and Sram
- Shimano Micro Spline
Material
- Rim: Aluminum, sleeved joint
- Front Hub: Aluminum, Aluminum flanges
- Rear Hub: Aluminum, Aluminum flanges
- Spokes: Inox bluing
- Nipples: Brass, self-locking
Color
- black
Weight
- 2170g pair (manufacturer information)
Scope of delivery
- 1 Fulcrum E-Metal 5 29" Boost Wheelset
Technologies
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.
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