Generation 2 Dropout Kit 26" and 29" 12x148 Boost - Short This is the kit most commonly used for Banshee's 29er models (Titan, Prime, Phantom) with normal 29er builds. Sometimes used on Spitfire/Rune for 26" builds (though becoming less common). 12x148mm Boost hub compatible. Includes new "tooled" bolt on axle Banshee Generation 2 Dropout Kit Dropout Kit