H Son SL42 700c Rim – 42mm Deep, Machined Sidewall, Lightweight & Durable The H Son SL42 700c (Black MSW) is a high-performance 42mm deep-section rim, engineered for aerodynamic efficiency and superior stiffness. Developed over a year, the SL42 shares the same profile height as the Formation Face but features a machined sidewall, making it compatible with rim brakes. Crafted from G609 aluminum alloy, which is 30% stronger than standard 6061 aluminium, the SL42 achieves an optimal balance of strength and weight. The lightweight design, that 615g (±15g), ensures a responsive ride while maintaining durability. Key Features: Material: G609 aluminum alloy (30% stronger than 6061) Size: 700c Rim Type: clinchers Brake Compatibility: Machined sidewall for rim brakes Rim Depth: 42 mm Internal Width: 19.5 mm Effective Rim Diameter (ERD): 557 mm Seal: Welded for added strength Color / Surface Silver Polished Weight: 615g (±15g)
