H Plus Son SL42 Road Bike RimIf you’re looking for an aerodynamic alloy road bike rim for fast racing use, the SL42 Road Bike Rim will instantly give you the performance advantage you want. 19.5mm wide and 42mm deep, it’s the perfect addition to your modern racing machine. Durable and lightweight, H Plus Son has given it a machined braking surface for efficient speed control as you’re diving into corners and aggressively attacking the descents.G609 Aluminium Alloy ConstructionH Plus Son kept this rim’s weight down without any reduction in its strength or stiffness. This is thanks to the G609 aluminium alloy that was selected for its construction. The G609 alloy is 30% stronger than the 6061-aluminium alloy used in standard rim manufacture, meaning this rim is stronger and lighter than most others on the market of the same weight. The SL42 also features a precisely machined sidewall for use with rim brakes.Features:Material: G609 Alloy Rim Type: Clincher Outer Width: 19.5mm Height: 42mm Joint Type: Welded Spoke Hole Count: 28 Effective Rim Diameter (ERD): 557mm Brake Compatibility: Rim brakes, Machined surface Tubeless Ready: No Maximum Spoke Tension: 130 KGF Sold individually Weight: 615gBuy H Plus Son Wheels & Tyres from Chain Reaction Cycles, the World’s Largest Online Bike Store.