FULCRUM SPEED 55 DB 2WF C19 AFS WHEELS
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The new rim profile that characterizes the Speed 55 DB is a further step forward in the search for the best aerodynamic performance, a model therefore aimed at a demanding and “racing” public. To improve the rolling resistance (and therefore the speed) of the wheel / tire system we have designed this model in the 2-WAY FIT version .
The production method of the carbon fiber rim without holes in the inner channel - patented construction technology also allows a stronger and more robust construction able to withstand even the most extreme racing conditions. The rim width of 19 mm fits perfectly with the trend of using ever wider tires, a choice that further improves the aerodynamic performance of the wheel / tire system. These data have been validated by intensive studies and tests in the wind tunnel where we regularly carry out tests on new projects. Speed proved to be the best option in terms of aerodynamic penetration indices in the Fulcrum range and takes its indications from the profiles developed in the tubular version for World Tour teams.
The Speed, however, do not respond only to aerodynamic performance, to optimize performance the wheels must also be light and smooth, the scale stops at 1580 grams while for the bearings we have chosen ceramic USB components.
tire type | 2-Way Fit (for clincher and tubeless) |
circle diameter | 28 " |
discipline | Road / Triathlon |
ASTM category | 2 |
weight | 1580 g |
wheel material | Carbon |
rim material | Full carbon, "Twill" carbon fiber finish |
profile height | Tall |
rim height | Front and rear: 55mm |
rim width | 26.5 mm |
Internal channel width | 19 mm |
tire width | from 23 mm to 40 mm |
braking system | Disc brake |
Braking surface / brake option | AFS |
front axle compatibility | HH12-100 |
rear axle compatibility | HH12-142 |
spokes: front | 21, Two-to-one (14 left - 7 right) |
spokes: rear | 21, Two-to-one (7 left - 14 right) |
spokes: material | Double butted stainless steel |
spokes: profile | GIROed off |
nipples | Aluminum |
front hub | Carbon, aluminum oversize flange |
rear hub | Aluminum, Oversize aluminum flange |
bearings | USB ceramic bearings, Cone & Cap System |
ALTRA | Plasma treatment on HG freewheel body. Aluminum axle |
Weight limit | 120 kg (cyclist system, bike, equipment and luggage) |
freewheel versions | HG11, Campy, XDr |
Codice: RUOTE FULCRUM SPEED 55 DB 2WF C19 AFS