Reserve 42|49 SL Turbulent Aero Wheelset Light enough to climb. Fast enough to win. The Reserve 42|49 SL Turbulent Aero is the wheelset Pauline Ferrand-Prevot rode to the GC and yellow jersey at the 2025 Tour de France Femmes - which tells you just about everything you need to know. The SL rims shed 30 grams per rim versus the standard Traverse build through advanced manufacturing techniques, without trading away strength or durability. Tune Pico hubs - machined from 7075-T6 alloy in Buggingen, Germany and purpose-built to align perfectly with Reserve's SL rim ERD and spoke offset - are laced with Vonoa bladed carbon spokes that run in a perfectly straight line from hub to rim. No bends. No fatigue points. Just stiffness, speed, and 1, 290 grams of race-ready wheel. Features SL carbon rims - 30g lighter per rim than the standard 42|49, with the same strength, durability, and Turbulent Aero rim profile; asymmetric depths of 42mm front and 49mm rear balance aerodynamic efficiency with crosswind stability Turbulent Aero technology developed using real-world wind data across popular riding routes - not just wind tunnel conditions - resulting in wheels optimized for the yaw angles riders actually encounter on the road Tune Pico hubs machined from 7075-T6 alloy in Buggingen, Germany; purpose-built for Reserve SL rims with hubs weighing just 275g per set including driver body and rotor lockrings; upgradeable from 69 to 138 points of engagement (5. 2deg to 2. 6deg)Vonoa bladed carbon spokes run perfectly straight from hub to rim - no J-bend, no twist - for maximum energy transfer, reduced nipple stress, and long-term durability Semi-hooked bead design - tubeless-ready and compatible with all major tire brands and tire inserts, with no rider weight limits and no tire restrictions What's included: XDR and HG11 freehub bodies, Centerlock rings, spare carbon spokes, Fillmore tubeless valves, and rim tape Lifetime warranty with no-fault crash replacement - backed by Reserve's industry-leading ownership program SPECIFICATIONSFront (42 SL)Rear (49 SL)Rim Depth42mm49mm Internal Rim Width25. 4mm24. 8mm External Rim Width34. 4mm32. 1mm ERD556mm542mm Rim Weight345g385g Rear Rim Offset-1. 8mm Spoke Count24HSpokes Vonoa bladed carbon, straight-pull Hub Tune Pico - 7075-T6 alloy, 275g per set Hub Spacing12x100mm12x142mm Freehub Options-XDR + HG-EV (both included)Engagement-69t / 5. 2deg standard; upgradeable to 138t / 2. 6degBrake Type Centerlock disc Wheelset Weight1, 290g Recommended Tire Size29-40mm Max Pressure100 psi (6. 9 bar), or tire manufacturer limit if lower Rider Weight Limit None Warranty Lifetime + no-fault crash replacement Intended Use Road Racing, Fast Group Rides, Criterium Note: Components are subject to change without notice. | Reserve Wheels | Reserve 42 | 49 Ta Sl Tune Wheelset Set, 12X100/148Mm, Centerlock, Incl. Hg11R & Xdr Drivers