Full Speed Ahead Afterburner WideR Boost 29″ Wheelset 24/24H 29″ Boost DB 6B TA15 HG 11sp. The FSA Afterburner WideR Boost 29″ Wheelset is a versatile mountain bike wheelset designed for trail and all-mountain use. With Boost spacing and a wide internal rim width it supports modern tire profiles for better grip and control. Lightweight yet durable its a solid upgrade for riders seeking performance across varied terrain.