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Fulcrum Racing Speed XLR Wheelset - Tubular

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Item # FLC0003

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Item # FLC0003


Like the Campagnolo Bora that preceded it, the Fulcrum Racing Speed XLR is something of an anomaly in the world of race wheel exotica. How could a 50mm dish wheel that weighs less than the lightweight alloy options of competitors, remain stiffer, track more confidently, and perform just as well on nimble climbs as it does on powerful sprints? It’s for these reasons that the all-around, maximum-performance Racing Speed XLR sits at the top of Fulcrum's range, and is equipped on the bikes of Fulcrum's sponsored pro-tour team, Lampre-ISD. The XLR delineation in Fulcrum's naming scheme indicates the Racing Speed rolls on carbon-fiber hub shells encasing Campagnolo’s top-shelf, frictionless CULT ceramic bearings mated to stainless steel Cronitect races . The CULT bearing system is a purported nine times smoother than typical steel bearings, a smoothness that directly translates to the wheel’s ability to roll up to speed, and maintain that speed with as little friction or resistance as possible.

The carbon fiber rims and hub shells are tied together with aero profiled stainless steel spokes. The front wheel uses 18 radially laced spokes with the nipples hidden inside the rim for improved aerodynamic efficiency. The rear wheel uses the same hidden nipples, has 21 spokes, and features Fulcrum's Two-to-One lacing pattern. This arrangement, which features seven radial spokes on the rear non-drive side and, on the drive side, 14 tangentially laced spokes anchored to the oversized right side flange on the rear hub. The Two-to-One pattern ensures an instant, positive response to your pedal input and a better balance of spoke tension for greater durability.

The Fulcrum Racing Speed XLR Tubular Wheelset is light enough for hilly road courses, aero enough for breakaway riding in any terrain, and more than durable enough for nearly anything else you might imagine. The wheels ship with all-weather brake pads optimized for the carbon-fiber braking surface, as well as Fulcrum’s new quick-release skewers that offer greater clamping force and more security. The rear wheel is available with a Campy-compatible aluminum freehub body or steel-bodied version compatible with Shimano/SRAM cassettes. And one minor technical note: Campagnolo recommends that the CULT bearing systems be lubricated with oil, not grease.

Tech Specs

[rim] carbon fiber, [hubs] carbon fiber, aluminum, [bearings] CULT ceramic
Rim Width:
20.0 mm
Front Hub:
Rear Hub:
Front Spoke Count:
22 radial
Rear Spoke Count:
21 2:1 lacing
Axle Type:
Brake Compatibility:
caliper, Fulcrum brake pads
Rotor Compatibility:
Front Weight:
577 g
Rear Weight:
747 g
Complete Set Weight:
1324 g
Recommended Use:
road racing
Manufacturer Warranty:
2 years

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What is the highest weight of rider for...

What is the highest weight of rider for these wheels? Is there a limit in weight (for example 100 kg)?

Best Answer

From Fulcrum's website FAQ:

All Fulcrum wheels are constructed to meet the highest standards of resistance and durability. If you weigh over 109 kg/240 lbs we advise you not to use this product. Non compliance with this warning can damage the product irreversibly. If you weigh 82 kg/180 lbs or more, you must be especially vigilant and have your bicycle inspected more frequently (than someone weighing less than 82 kg/180 lbs). Check with your mechanic to discuss whether the wheels you selected are suitable for your use, and to determine the frequency of inspections. Using tires with a larger diameter and a frame that respects the standards will help to increase the lifetime of the wheels.

Unanswered Question

What is the highest possible weight of...

What is the highest possible weight of rider for these wheels? Is there a limit in durance (for example not more than 100 kilos or similar)?