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Fulcrum Speed 40 DB C19 Wheelset | Carbon | Clincher | Centerlock | 12x100mm / 12x142mm - black

Fulcrum Speed 40 DB C19 Wheelset | Carbon | Clincher | Centerlock | 12x100mm / 12x142mm - black

The increase of #fulcrumfast

SPEED is synonymous with competition, and represents the ultimate in performance, above all when the stopwatch is the only means used to judge results on a racing bike. It the name of a product created for World Tour professionals, who use the tubular tyre version, and for all those who use these wheels for racing.

With the above as a premise, what features should the 40 mm-high, non-tubular SPEED wheel - which is ideal in most situations - have?

That's simple: the best of everything. And thus, the SPEED 40 DB, 2-Way Fit (tubeless) + disc brake wheel is born.
SPEED 40 DB is a set of wheels for use with disc brakes that will simply leave you speechless, featuring a cutting-edge rim with a new shape, designed according to innovative technical concepts. At 26.5 mm, the wheel is wider, with an aerodynamic shape which includes a pronounced 8 mm profile and a "twill" weave carbon fibre texture, optimising the elastic responsiveness of the rim.

The final aerodynamic profile is the fruit of a lengthy finishing process: from simulations to prototype testing, in order to select the best design whilst taking the side wind and the turbulence created by the disc into account, followed by a long analysis to choose the best materials to be used on the final product.

Need a few more hints to get a real feel for the spirit of this wheel? Here they are: the SPEED 40 DB boasts a 2-Way Fit construction - and as such is tubeless by conception - with a 19 mm wide channel, and a USB ceramic cone & cup bearing system. And, of course, the oversize flanges on the hubs are designed to take full advantage of all the benefits offered by the disc brake.

Ultimately, the SPEED 40 DB is the new point of reference for riders who have chosen to a disc brake, and who are looking for the very best wheels out there, with a true racing pedigree and a perfect mid-profile on the majority of routes.


  • 700c disc racing wheels
  • 2-Way Fit, for clincher and tubeless tires
  • 19mm inner rim width
  • AFS (Centerlock) disc brake mount
  • front wheel: 12 x 100mm thru axle
  • rear wheel: 10 x 142mm thru axle


The Anti-Rotation System™ is designed to make sure that spokes will never lose their initial tension and remain in the position that have been studied in the wind tunnel tests to ensure the best aerodynamic penetration possible.

2:1 Two-to-On™: Doubling the spokes in the critical zones avoids slackening of the spokes and loss of rim tension.

Plasma Freehub: The Plasma treatment makes the aluminium especially hard and resistant to surface abrasion and wear.

Oversized flange on the drive side: Provides greater torsional stiffness, increases reactivity at each change in rhythm of the pedal stroke.
Included in delivery: wheelset (FW & RW), tubeless valve & rim tape
Material: rim: carbon
fw hub: carbon body with aluminium flanges
rw hub: aluminium
nipples: aluminum
spokes: stainless steel
Weight supplement: per set | manufacturer infromation

Fact Sheet of Fulcrum Speed 40 DB C19 Wheelset | Carbon | Clincher | Centerlock | 12x100mm / 12x142mm - black

Product Name: Fulcrum Speed 40 DB C19 Wheelset | Carbon | Clincher | Centerlock | 12x100mm / 12x142mm - black
Manufacturer: Fulcrum
Item Code: FUL435669
activity: Cycling
material: Carbon
usage bikesport: Road Bike
spokes: rounded stainless steel, straight pull
shifting system: 9-speed, 10-speed, 11-speed, 12-speed
wheel size: 28" (622mm)
axle standard: 12x100mm (FW), 12x142mm (RW)
Wheel version: Wheelset, Wheelset 1300-1700g
Freehub Body: ED (Campagnolo 9-12s), XDR (SRAM 12s Road), HG L (Shimano 11/12s Road)
braking system: Centerlock/AFS
tire type: Wire Bead Tire, Folding Tire, Tubeless Ready
fitting tire dimensions: 23-50mm
ETRTO: 19-622
rim width: 26.5mm
rim profile height: 40mm
weight limit: 109kg
nipples: aluminum
Model year: 2023
Collection: Full year
Color: Black
weight: 1470g
manufacturer item code: 2WF C19 AFS HH12 HG
Number of Spoke Holes: 21
Freewheel System: Pawls
Manufacturer page: http://www.fulcrumwheels.com/