FULCRUM SPEED 55 DB

199,990.00

The new rim profile characterizing the Speed 55 DB is a further step forwards in the search for the best aerodynamic performance. The model therefore focuses on a demanding and “racing” audience. To improve the rolling resistance (and ultimately the speed) of the wheel/tyre system, we designed this model in the 2-WAY FIT version.
The manufacturing process of the carbon fibre rim without holes in the internal channel – a patented construction technology – also allows a stronger and sturdier construction capable of withstanding even the most extreme racing conditions.  The rim with a 19 mm inner width perfectly matches recent trends of using increasingly wider tyres – a choice that further improves the aerodynamic performance of the wheel/tyre system. This data has been validated by intensive wind tunnel studies and trials where new projects are tested on a regular basis. SPEED 55 DB proved to be the best option in terms of aerodynamic penetration indexes in the Fulcrum range and is derived from the profiles developed for the tubular version used by World Tour teams.
The SPEED range not only responds in terms of aerodynamic performance. Optimizing performance also requires the wheels to be light and run smooth. The scale stops at 1580 gr and we have chosen to add ceramic USB bearing components.

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Additional information

TYRE TYPE

2-Way fit (for clincher and tubeless)

TYRE SIZE

28"

DISCIPLINE

Road / Triathlon

weight

1580g

RIM MATERIAL

Carbon

RIM MATERIAL DETAILS

Full carbon, carbon fiber finishing

PROFILE HEIGHT

Deep Section

RIM HEIGHT

Front and rear: 55 mm

RIM WIDTH

26,5 mm

INNER RIM WIDTH (CHANNEL)

19 mm

TYRE WIDTH

From 23 mm to 50 mm

BRAKING SYSTEM

Disc brake

BRAKING SURFACE

AFS

FRONT AXLE COMPATIBILITY

HH12-100

REAR AXLE COMPATIBILITY

HH12-142

FRONT WHEEL SPOKES

21, Two-to-one (14 left – 7 right)

REAR WHEEL SPOKES

21, Two-to-one (7 left – 14 right)

SPOKES: MATERIAL

Stainless steel, double butted

SPOKES: PROFILE

Rounded

NIPPLES

Aluminum

FRONT HUB

Carbon, Oversized Aluminium flange

REAR HUB

Aluminum, Oversized Aluminium flange

BEARINGS

USB ceramic bearings. Adjustable Cup & Cones system

OTHERS

Plasma treated HG freewheel. Aluminum Axle

WEIGHT LIMIT

120kg (bike, rider, equipment and luggage)

FWB OPTIONS

HG11, Campy, XDr