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The Shimano Freehub 12s 148/32 Thru Boost is designed for modern mountain bikes that demand precise, reliable drivetrain performance. Built around the Boost standard with a 148 mm spacing and thru-axle compatibility, this freehub body is made to integrate seamlessly with wide, stiff rear wheel setups. It supports 12-speed Shimano-compatible cassettes, giving you access to a broad gear range and smooth shifting on steep climbs, fast descents, and technical trails.
Engineered for durability, the Shimano Freehub 12s 148/32 Thru Boost uses proven internal mechanisms to deliver consistent engagement and long service life under hard riding conditions. It is an ideal replacement part when refreshing a worn hub or converting an existing Boost wheel to a 12-speed Shimano drivetrain. Whether you are upgrading your trail bike, enduro rig, or e-MTB wheel, this freehub body offers a straightforward way to keep your rear wheel running quietly, efficiently, and ready for aggressive off-road riding.
