Product Description The - Aerodynamic, efficient, tubeless compatible Mavic's Cosmic SL 40 wheelset is based on 19 mm wide and 40 mm high carbon rims optimised for rim brakes and offers a perfect mix of lightweight, aerodynamics and efficiency. Tubeless compatibility opens up further advantages such as more puncture resistance, less rolling resistance and weight savings. Quick-release hubs with self-adjusting bearings and optimised spoke holes are used, with 18 double butted straight pull spokes at the front and 20 at the rear. Specifications:Application:Road, Triathlon & Time TrialWheel Size:28"Tyre Type:clincher tyreNumber of Spokes:18 (front), 20 (rear)Brake Type:rim brakeTubeless System:UST Road TubelessTechnical Information - Rim:Rim Flange:with hookDimensions (ETRTO):19-622Inner Width:19 mmOuter Width:25.7 mmDepth:40 mmValve Hole Diameter:SV/Presta (6.5 mm)Rim Material:CarbonTechnical Information - Front Hub:Type:Mavic InfinityOver Locknut Dimension:9 x 100 mm quick releaseBearings:self-aligning sealed cartridge bearingsBody Material:aluminiumTechnical Information - Rear Hub:Type:Mavic InfinityOver Locknut Dimension:10 x 130 mm quick releaseBearings:self-aligning sealed cartridge bearingsBody Material:aluminiumFreehub Body Material:aluminiumFreehub Body:Instant Drive 360Technical Information - Lacing:Front Lacing Pattern:2-crossRear Lacing Pattern:IsopulseSpoke Type:straight pull / double-buttedSpoke Size:271 mm (front), 280 mm/260 mm (rear l/r)Spoke Material:steelNipple Type:ABSNipple Material:aluminiumApproved For:Weight Limit:120 kg total weight* (rider, gear & bike)Air Pressure (max.):see specifications on wheel and tyre (if different take the lower value)Recommended Tyre Width:25 - 32 mm * recommended for increased durability Features:efficient climbing characteristics, fast acceleration, constant speedversatile performance for a wide range of scenariosuser-friendly UST-Road system for more speed, control and comfortconventional rim drillingspecial brake flankInfinity hub design for optimal lacingaluminium axlesextra-light Shimano freehub body optionally availableASTM category 1: Road only (only for use on asphalt roads and paths)Technology:iTgMAX iTgMAX stands for Integral Glass Transition Temperature and refers to an inner rim bed that has been finished with multiple seamless layers of carbon fibre to achieve a unique one-piece rim shape without having to cut away fibres. The brake track is given a lasered finish to guarantee optimum braking efficiency. The result is consistent, efficient braking and a 50% reduction in deceleration time in wet conditions. iTgMAX rims are Mavic's toughest carbon rims, designed to withstand the hardest use by the most vigorous riders in the worst conditions. Infinity Hub Design Infinity hubs from Mavic allow contactless lacing, which prevents noise development under load. At the same time, this design is lighter, stiffer and easier to maintain. Often you only need one spoke length per wheel set, so that an optimal spare parts supply is given. QRM Auto QRM Auto stands for Qualité de Roulements Mavic Auto, and is the latest bearing innovation from Mavic. These cartridge bearings with C3 internal clearance are double sealed. Their bearing clearance is automatically adjusted to guarantee smooth running without any play at all times. Instant Drive 360 The Instant Drive 360 freehub system is super light and ensures a fast power connection with an engagement angle of only 9° (road) or 15° (MTB). A large, non-contact rubber seal reduces friction. Isopulse (Rear) This special lacing (right radial, left double-crossed) increases the stability of the wheels and ensures optimal power transmission - thanks to more even spoke tension on the left and right hub flange. Isopulse means higher stiffness under heavy load, resulting in immediate power transmission. Also, sturdier wheels have lower maintenance requirements. Models:28" set (front 9x100 + rear 10x130) Shimano: Freehub:Shimano RoadGearing:8-/9-/10-/11-/12-speedNote:The assembly of 8-/9-/10-speed cassettes on a Shimano Road Rotor requires a 1.85 mm spacer.Manufacturer Number:P1327155Conversion Options:To convert to Campagnolo, a separate Campagnolo freehub body is required. To convert to SRAM XDR, an XDR freehub body is required.Contents:1 x (front and rear)2 x Mavic BR301 quick release2 x pair Mavic brake pads for carbon2 x UST valve with accessories2 x tubeless rim tape (applied) Weight: black | 130 mm | 100 mm | 28" | Shimano Road | 100 mm | Shimano Road | 100 mm | 130 mm: 1599 g Manufacturer: Mavic Group Germany GmbH Geigelsteinstraße 10 83080 Oberaudorf Germany info@mavic.com