Sunrace Integrated Bottom Brackets For Shimano

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Sunrace external threaded bottom bracket designed for 24 mm crank axles, specifically compatible with Shimano HollowTech II systems. Built with alloy cups, composite spacers, and s ealed cartridge bearings, it offers smooth, low-friction performance across MTB, gravel, city, and e-bike platforms. With a 68/73 mm BSA shell fit and silver anodized finish, it’s a dependable upgrade for advanced riders seeking durability and precision.Features Durable alloy and composite construction Compatible with Shimano Hollowtech II Smooth, sealed bearing performance for varied terrain Technical Specifications Material: Alloy cups, composite sleeve and spacers Fitting: BSA Use: Gravel, City, E-Bike,MTB, Show more