Big bore aluminum back shock body is redesigned for general handling and gratification improvements. The top bore shocks improve landings and offer better control over surface unevenness and bumps to enhance traction. Fits: XT2’24, XT4’24 368392 Front Big Bore Conical Spring Set L=49mm - 2 Dots (2) a selection of Big Bore conical springs to suit the Big Bore shocks. The springs, as with any other XRAY springs, are manually calculated, selected, and matched into pairs to guarantee properly equal length and damping characteristics. Each spring is laser-engraved with stripes to demonstrably suggest its tone.