FULCRUM E-RACING 4 DB 2WF-R C22 AFS DRP

Aware of the constant growth in e-bikes, we have developed the first all-round wheel specifically for this market segment. We have a proven track record in the E-MTB world and we have applied this technical expertise to the latest evolution of current bikes and new way of cycling.

We began by developing a specific rim profile, with an inner rim width of 22 mm (ideal for tyres between 30 and 45 mm), special self-locking long head nipples and project-specific spokes. As we discovered when we developed the E-MTB wheels, the motor increases the load on the freewheel, which has to support greater torsional loads for longer periods too. This is where we focused our attention. Seeing as the freewheel body is the contact point where the drive force is transferred from the cassette to the wheel body, it is subject to higher stresses due to the increased power and jerks caused by the activation of the motor. This led us to use a tempered steel freewheel body, with specific internals, able to support a tensile strength greater than 30%. The results of lab analysis on the behaviour of the single pawls on cycles higher than a billion are clear: the life of cemented steel is estimated to be 2 times higher than Ergal models used for traditional road models.

TECHNOLOGIES
RDB™ RIM DYNAMIC BALANCEAFS AXLE SYSTEM™WIDE RIM TECHASYMMETRIC RIM2WAY - FIT™ READY (ROAD)REINFORCED HEAD SPOKESREINFORCED FREEHUB SYSTEM

FEATURES
TYRE TYPE 2-Way Fit Ready (for clincher and tubeless)
TYRE SIZE 28"
DISCIPLINE E-Road / E-Gravel
ASTM CATEGOR 2
WEIGHT 1870 g
RIM MATERIAL Aluminium
RIM MATERIAL DETAILS Aluminium
PROFILE HEIGHT Medium
RIM HEIGHT Front and rear: 34 mm
RIM WIDTH 27.1 mm
INNER RIM WIDTH(CHANNEL) 22 mm
TYRE WIDTH From 30 mm to 45 mm
BRAKING SYSTEM Disc brake
BRAKING SURFACE/BRAKES OPTIONS AFS
FRONT AXLE COMPATIBILITY HH12-100
REAR AXLE COMPATIBILITY HH12-142
FRONT WHEEL SPOKES 24 (16 left - 8 right)
REAR WHEEL SPOKES 24 (8 left - 16 right)
SPOKES: MATERIAL Stainless steel, double butted
SPOKES: PROFILE Rounded, straight pull
NIPPLES Aluminium, long head
FRONT HUB Aluminium, aluminium flange
REAR HUB Aluminium, aluminium flange
BEARINGS Sealed cartridge bearings
OTHERS DRP
WEIGHT LIMIT 135 kg (bike, rider, equipment and luggage)
FWB OPTIONS HG11 - XDR - Optional CAMPY N3W
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