RapidEngage Freehub | Shimano Microspline Type:Shimano Microspline they could reduce drag by

they could reduce drag by an impressive 20% and still achieve the 3 watt / 6 volt output (800 lumens on the Revo light) at just 10mph

Spoke Tension: 105~120kgf

also from the IAM Team

Triple Butted (2

offering 19mm internal and 27mm external width

RapidEngage Freehub | Shimano Microspline Type:Shimano Microspline they could reduce drag byReplacement freehub for Engage DB Engage RB hubs. For an expanded view of the freehub, which shows it's individual parts, please see the image gallery. Note: Not all parts of the freehub seen in the expanded view are available to purchase separately. Freehub bearings from left (hub side) to right (end cap side): 15267 2RS Bearing Stainless Steel 15267 2RS Bearing Stainless Steel 6802 2RS Bearing Stainless Steel 6802 2RS Bearing Stainless Steel This