Fulcrum Speed 57 Center Lock Disc Carbon Wheelset

The Speed 57 Center Lock Disc 28" wheelset from Fulcrum - deeper, wider, lighter and more aerodynamic

Fulcrum Speed 57 is an aerodynamic, extra-light road bike wheelset from the top segment with 57 mm deep and 23 mm wide rims made of highly modular FF100 carbon. Compared to the previous model, both handling and reactivity have been improved and new top values have been achieved in terms of smoothness and comfort. The rim base has no holes, which is why no rim tape is required for mounting tyres, whether tubeless or with an inner tube.
The hubs, which are compatible with center-lock brake rotors, have ceramic bearings and smaller flanges and bodies than before. This reduces wind resistance without compromising rigidity. The freehub has been updated and made even more efficient too. The Speed 57 wheels are laced with aero spokes in a 2-to-1 pattern to optimise power transmission.

Specifications:

Application:

Road

Wheel Size:

28"

Tyre Type:

clincher tyre

Number of Spokes:

24

Brake Type:

Center Lock Disc

Tubeless System:

Tubeless Ready

Technical Information - Rim:

Rim Flange:

with hook

Dimensions (ETRTO):

23-622

Inner Width:

23 mm

Outer Width:

29.3 mm

Depth:

57 mm

Valve Hole Diameter:

SV/Presta (6.5 mm)

Rim Material:

Carbon (FF100 UD)

Technical Information - Front Hub:

Over Locknut Dimension:

12 x 100 mm thru-axle

Bearings:

cup-and-cone bearing (USB, ceramic)

Body Material:

aluminium

Technical Information - Rear Hub:

Over Locknut Dimension:

12 x 142 mm thru-axle

Bearings:

cup-and-cone bearing (USB, ceramic)

Body Material:

aluminium

Freehub Body Material:

aluminium

Freehub Body:

pawls

Technical Information - Lacing:

Front Lacing Pattern:

2:1

Rear Lacing Pattern:

2:1

Spoke Type:

aero / double-butted / straightpull

Spoke Material:

stainless steel

Nipple Type:

self-locking

Nipple Material:

aluminium

Approved For:

Weight Limit:

120 kg

Air Pressure (max.):

7 bar (25 mm tyres) - 5.2 bar / 3.9 bar (41 mm tyres with inner tube / tubeless)

Recommended Tyre Width:

25 - 65 mm

Features:

• aerodynamic, agile and extra-light high-end wheelset for road bikes
• carbon rims 2 mm deeper and 4 mm wider than the previous model (57 mm / 23 mm)
• special FF100 high modulus fibre compound for the perfect level of damping and superior ride feel
• 17% better handling and 10% better responsiveness than the previous model
• optimum aerodynamics, low rolling resistance and high comfort
• 2-way fit technology: can be fitted with and without an inner tube
• rim base without holes, no rim tape required
• rim wall with hooks for maximum safety
• rim channel polished with C-LUX technology for optimum tyre fit
• low-flange hubs for more aerodynamics
• 6 more pawls than the previous model for greater efficiency
• adjustable cup-and-cone bearings with smooth USB ceramic bearing
• asymmetrical lacing pattern for improved torsional rigidity and power transmission
• plastic reinforcements on the nipple seat for more durability
• matt direct in-mould finish with direct laser-applied graphics and ultra-thin metal labels
• ASTM category 2: for use on roads, maintained dirt roads and gravel roads (on Touring and Cross Country bikes) with jumps up to a height of 15 cm

Technology:

MoMag
MoMag stands for Mounting Magnet and refers to a type of fastening for spokes in the rim bed. The spoke nipples are placed in the rim via the valve opening and brought to their destination by means of a magnet. The spokes are screwed into the nipples as standard. This also makes it possible to maintain and replace spokes with little effort.

Undrilled Rim Bed
The rim bed is continuous and has no holes for nipples. The nipples are inserted over the valve opening and guided with a magnet to the connection point of the rim. This eliminates the need for rim tape, increases the durability of the rim and allows the spokes to be tensioned more, resulting in greater stiffness.

DRSC
Directionated Rim-Spoke Coupling is an exclusive rim-spoke connection system. In this way, the rim, spokes, nipples and hub are matched to each other, and the same tension value is achieved at every point. All critical areas of increased voltage are eliminated.

USB
USB stands for Ultra Smooth Bearings. These are ceramic bearings for hubs that enormously increase the smoothness of the wheels, minimise weight and keep maintenance manageable. USB bearings are about 50% smoother than standard bearings. This means that more power is converted into direct propulsion and is no longer lost through friction.

Two-to-One Spoke Ratio
In order to avoid energy loss, two-to-one wheels are equipped with double the number of spokes in critical areas. In the case of rear wheels, this takes into account the increased forces on the drive side. Front wheels have twice as many spokes on the side of the brake rotor.

Models:

28" set (front 12x100 + rear 12x142) Campa N3W:

Freehub:

Campagnolo N3W

Gearing:

11-/12-/13-speed

Note:

An adapter is necessary for mounting 11/12-speed Campagnolo cassettes on a Campagnolo N3W rotor.

Manufacturer Number:

RS-23DC5FRAC3

28" set (front 12x100 + rear 12x142) Shimano:

Freehub:

Shimano Road

Gearing:

8-/9-/10-/11-/12-speed

Note:

The assembly of 8-/9-/10-speed cassettes on a Shimano road rotor requires a 1.85 mm spacer.

Manufacturer Number:

RS-23DC5FRAS

28" set (front 12x100 + rear 12x142) SRAM XDR:

Freehub:

SRAM XDR

Gearing:

11-/12-speed

Note:

To mount XD cassettes on an XDR rotor, a 1.8 mm spacer is required.

Manufacturer Number:

RS-23DC5FRAX

Contents:

• 1 x Fulcrum Speed 57 Center Lock Disc wheelset (front and rear wheel)
• 2 x Fulcrum tubeless valves