Acros nineteen-enduro-boost-rear-hub, 32L, Shimano Microspline

A true lightweight stability marvel: the Acros Enduro Boost hub in classic flange design with a 19-mm axle and angular contact bearings. The Acros Nineteen Enduro Boost front hub is not just an off-the-shelf product. Instead, the hub body is machined from a solid aluminum rod at the Acros headquarters near Stuttgart, milled, and completely assembled by hand. As bearing specialists, Acros pays great attention to detail in their internal components. This is why Acros uses axles with a diameter of 19 mm that rotate in specially optimized angular contact bearings made of stainless steel for this application. The design around the oversized axle allows for weight optimization of the entire hub while increasing stiffness. As a result, Acros hubs are unbeatable in weight while maintaining the highest stiffness. The hub body is made of 6061 aluminum and features a standard flange.

Details:

• Total weight: 240 g
• Nineteen Boost hub with 19-mm axle
• Freehub sound adjustable in three levels – from discreet to loud
• Ratchet freehub with 38 teeth
• Stainless steel angular contact bearings

Technical specifications:
Installation width: 12x148 mm thru-axle
Number of holes: 32
Brake system: Disc 6-bolt
Freehub: Ratchet system with 38 teeth
Type: J-Bend
Weight: approx. 240 g
Material of hub body: Aluminum
Bearing: Stainless steel angular contact bearings
Flange distance (left/right): 36/23.4 mm
Pitch circle diameter (left/right): 56/51 mm
Spoke hole diameter: 2.6 mm
Crossings (left/right): 3-cross/3-cross.