Fulcrum Racing 4 DB Wheelset - Clincher - AFS - VR: 12/15x100mm/QR | HR: 12x135/142mm/QR

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Description of Fulcrum Racing 4 DB Wheelset - Clincher - AFS - VR: 12/15x100mm/QR | HR: 12x135/142mm/QR

35mm is the entry point for the mid-profile rim segment, when we start to talk about aerodynamics, stability at high speeds and maximum steering precision. Racing 4 DB is a sturdy, precise aluminium wheel with sophisticated features such as straight head spokes and the 2-Way Fit Ready profile, all in one super competitive package that's ready to race.
This wheel has character and cyclists can choose to use it either as their only wheel or as an ideal training partner, offering an aerodynamic advantage and good ride ability.

It is the perfect range for those looking for an aerodynamic racing bicycle and ideal for triathletes as well as rouleurs who are eager to perform well on the climbs. Every watt will enhance performance, every turn will be executed with precision.


Properties

Rim with oriented drilling of spoke seat: For increased stability.

Stainless Steel spokes: Provide high levels of tension and stiffness.

High grade, top quality steel bearings with cup and cone construction: Reduce friction and ensure consistent performance over time.


Technologies

2Way - Fit™ Ready (Road)
This procedure transforms Racing 4/5/6/7 DB and Racing 400/500/600/700 DB wheels (designed to be used with a clincher tyre and inner tube) into Tubeless Ready wheels (no inner tube and compulsory use of a sealant liquid).

AFS System™
The Axial Fixing System™ is the solution developed by Fulcrum® to fix the disc brake to the hub. The constraint granted by the butt area of the release mechanism, greater than in familiar standard ones, makes it possible to obtain greater structural rigidity and therefore more precise and powerful braking.

Disc Specific Rim
Fulcrum® is one of wheel manufacturers on the market to offer two completely different rim profiles from disc to conventional brake. So, no adaptation, but a rim conceived based on years of design experience. Not requiring a braking track, Fulcrum®’s R&D department designed a completely new profile, aimed at saving every single gram of weight and at improving aerodynamic efficiency. Its greater width makes it a perfect fit for tyres of 25/28mm upwards.

Monoblock Disc Hub
The rear hub of a top-quality disc brake wheel is a technical problem to be solved. Fulcrum®’s R&D department found itself facing a fundamental choice: on which side to put the oversize flange of the Two-to-one™ system? Disc or sprocket side? Without question - must stay on the sprocket side.
To combat the loss of braking power from flex and torque of the connector between the two sides of the hub, a special one-piece system has been devised with internal stiffening ribs.

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.

Note: Shimano 9/10-speed only with 1 mm spacer which is included with the cassette.
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Fact Sheet of Fulcrum Racing 4 DB Wheelset - Clincher - AFS - VR: 12/15x100mm/QR | HR: 12x135/142mm/QR

Product Name: Fulcrum Racing 4 DB Wheelset - Clincher - AFS - VR: 12/15x100mm/QR | HR: 12x135/142mm/QR
Manufacturer: Fulcrum
Item Code: FUL346569
Year: 2018
Manufacturer item code: RC4-18DFR22A
Material: rims, hubs: aluminum
spokes: stainless steel
Weight: approx. 1690 gram (per set)
(manufacturer information)
Rim height: FW/RW: 35 mm
external/internal rim width: external: 23.5mm
internal: 17mm
E.T.R.T.O.: 17-622
Spokes: round
2,0 mm
Spokes number: FW: 24 (16 links + 8 rechts)
RW: 24 (8 links + 16 rechts)
Hub axle system: FW: 9x100 mm QR | 12x100 mm thru axle | 15x100mm thru axle
RW: 10x135 mm QR | 12x135 mm thru axle | 12x142 mm thru axle
Fitting type of tire: clincher
Fitting tire dimension: width: 25mm - 50mm (manufacturer recommendation)
Fitting for shifting: Shimano 8/9/10/11-speed HG
Max. permissible total weight
(rider + bike):
109 kg (rider)
Color: rims, hubs, spokes: black
decals: white
Disc brake standard: AFS
Included in delivery: without quick releases, FW/RW axle adapter
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