RIM BRAKE, TUBULAR, SHIMANO / SRAM 11 SPEED HUBNO SKEWERS INCLUDEDLight and aerodynamic, the Cosmic Carbone Ultimate is the Wheel-Tyre System to beat for aerodynamic wheels. The Wheel-Tyre System chosen most often by Pro Tour teams. This wheel has demonstrated its world class performance with prestigious results: UCI world champion, Tour de France Polka Dot jersey, victories on many Classics. This Wheel-Tyre System can do it all.Key Features:SSC Wheel-Tyre System: the pros choice - Optimized Wheel-Tyre System: GripLink / PowerLink Distinctive black reflective - SSC graphicsExtremely light (1185g) and amazingly aerodynamic - Monobloc full carbon construction Aero all over: 40 mm elliptical rim sidewalls, profiled spokes and hubsThe stiffest carbon Wheel-Tyre System on the market - 40 mm deep rim profile, no spoke drilling Asymmetrical rear rim profile 100% carbon spokesweightQRM+ - Qualité de Roulements Mavic + Mavic's most demanding level. Those cartridge bearings are of course double sealed with C3 internal clearance, and topped with a micro-adjustability system.FTS-L - Force Transfer System Light. Reinforcement of key transmission components: the contact area between the pawl and the hub body is reinforced by 2 stainless steel inserts, which allows the use of a 100% aluminium hub body.R2R - Lighter, stiffer, stronger. Rim to Rim. R2R spokes consists in a unique spoke that travel from one side of the rim to the other through the hub, which cuts spoke count by 2, resulting in only 1 spoke instead of 2.GripLink - Provides grip and control. A front tyre, whether a clincher or a tubular, must fully liberate the wheel’s ability to hold the ground and control the bike. Therefore, GripLink tyres are optimized for front use, by offering a superior grip.PowerLink - Low rolling resistance. A rear tyre, whether a clincher or a tubular, must fully liberate the wheel’s ability to transfer power and generate speed. Therefore, PowerLink tyres are optimized for rear wheel use, by minimizing the rolling resistanceTgMAX - Maximum Glass Transition Temperature. TgMAX technology consists in laying up several types of high technology resins, then fixing them using a proprietary heat treatment process to achieve the highest possible resistance to braking heat.Technical Specifications:SpokesCount: 20 front and rearNipples: brass, ABSMaterial: unidirectional carbon fibreShape: R2RLacing: crossed 2 front and rear drive side, radial non drive sideTyreDimension: 28"-23Breaker: Strong NylonLink: GripLinkLink: PowerLinkFront and Rear Tread: Single CompoundCasing: 210 TPIYksion Pro Tubular Griplink (front) and Powerlink (rear) - 230 gMax. Pressure: 11 bar / 160 psiIncludesComputer magnet (front wheel)User guidesValve extenderCarbon brake padsMultifunction adjustment wrenchRimsValve hole diameter: 6.5 mmTyre: tubularRecommended tyre sizes: 19 to 28 mmMaterial: 100% woven 12K carbon fibreDrilling: no holes, spokes moulded to the rimETRTO size: 28" tubularHubsRear body: aluminiumAxle material: aluminiumFront body: Front 100% carbonWeightWeight front : 520 gramsWeight pair : 1185 gramsWeight pair wheel-tyre system : 1645 gramsWeight front wheel-tyre system : 750 gramsWeight rear wheel-tyre system : 665 gramsWeight Rear WTS : 895 grams