Rear Hub Adapter for 12mm Boost The rear 12mm boost hub adapter allows converting a 142x12 mm front hub into a 148x12 mm configuration. Package includes 1 hub conversion adapter 2 spacers 6 bolts Material Aluminium alloy strength Anti rust Non deformation Durable Easy to use Includes accessories for straightforward installation Designed for reliable performance with common 12 mm boost setups Key benefits Enables compatibility between 142x12 mm front hubs and 148x12 mm boost standards Provides a simple, allinone conversion kit with spacers and bolts Lightweight, strong aluminium alloy construction for durable performance Compatible applications Upgrading or converting a wheelset to boost 148x12 mm spacing from a 142x12 mm hub Building or repairing bikes that require 148x12 mm boost spacing while using existing 142x12 mm components Convenient option for or home maintenance that requires a complete conversion kit without sourcing separate parts Use scenarios Scenario 1: You have a wheelset with a 142x12 mm front hub and want to fit a 148x12 mm boost rear hub. Install the adapter with spacers and bolts to complete the conversion. Scenario 2: As part of a custom build, you need to align a 142x12 mm hub with 148x12 mm boost components on a frame that supports boost spacing. Scenario 3: You are performing a routine upgrade or maintenance and want a readymade kit that includes all required parts for the conversion.