Extralite SP-B Front Hub for Brompton OverviewExtralite brings its renowned lightweight and durable design to the Brompton community with the SP-B front hub, crafted for the specific needs of Brompton bikes.Key FeaturesLightweight Construction:Weight: Engineered to be lightweight, ideal for weight-conscious Brompton riders.Design and Durability:- Spoke Bracing Angle: Optimizes spoke bracing for improved wheel stiffness and predictability.- Radial Spoke Lacing: Heat-treated flanges for durability.- Materials: High-grade aluminum construction for strength and reliability.Axle and Bearings:- Axle: 74mm aluminum axle fits Brompton's front spacing, ensuring smooth power transfer.- End Caps: Hard anodized for wear resistance and long life.Adjustability:- Bearing Preload Micro-Tuner: Easily adjustable to avoid bearing and axle damage, using hand or 17mm wrench.Directional Use:- Orientation: Marked for proper fork orientation, ensuring optimal performance.Specifications:- Hole Count: 20H, 24H- Spacing: 74mm (for Brompton bikes)- Weight: Lightweight design with robust integrity.Manufacturing:- Designed and manufactured in Italy, ensuring high-quality craftsmanship.The Extralite SP-B front hub for Brompton bikes offers exceptional lightness, strength, and performance, perfect for enhancing your folding bike.