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.
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 grams and we have chosen to add ceramic USB bearing components.
Ultimately, the SPEED 55 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.
Included in delivery: wheelset (FW & RW), tubeless valve & rim tape
Material: rim: carbon
fw hub: carbon body with aluminium flanges
rw hub: aluminium
spokes: stainless steel
Weight supplement: per set | manufacturer infromation
|Product Name:||Fulcrum Speed 55 DB C19 Carbon Wheelset | Clincher | Centerlock | 12x100mm / 12x142mm - black|
|usage bikesport:||Road Bike|
|hubs:||FW: Carbon with aluminum oversize flanges & adjustable ceramic bearing system | RW: aluminum with oversize flanges & adjustable ceramic bearing system|
|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, Standard Wheel|
|Freehub Body:||ED (Campagnolo 9-12s), XDR (SRAM 12s Road), HG L (Shimano 11/12s Road)|
|tire type:||Wire Bead Tire, Folding Tire, Tubeless Ready|
|fitting tire dimensions:||23-50mm|
|inner profile width:||19mm|
|rim profile height:||55mm|
|freehub system:||Campagnolo | Shimano HG | SRAM XDR|
|manufacturer item code:||RS-20DC5FRAC | RS-20DC5FRAS | RS-20DC5FRAX|
|Number of Spoke Holes:||21|