Dual-position rail mount that fits most tri-saddles, including modelsnIncludes 2 lightweight Profile Design KagesnAbility to mount 1 or 2 water bottle cagesnStamped and machined 6061-T6 aluminumnWeight: 228GnDual-position rail mount that fits most tri-saddles, including models with a "dropped" rear tab. Specifications: Includes 2 lightweight Profile Design Kages. Ability to mount 1 or 2 water bottle cages. Construction: Stamped and machined 6061-T6 aluminum. Weight: 228G