Exploring Boost Spacing: The Essential Guide for Mountain Bike Riders
Boost spacing is a standard hub and frame spacing for mountain bikes that was introduced by SRAM in 2015. It increases the spacing of the hub flanges and places the chainline further outboard. This results in wider spoke angles for greater wheel stiffness and more tire clearance, allowing for wider tires to be used on the same frame. Boost spacing commonly uses a 148mm rear hub and 110mm front hub.