Expand your Sport Series adjustable dumbbells to 90 pounds with a compatible expansion kit. Start with a Stage 2 Kit, then add Stage 3 to reach 90 pounds.
All Expansions are sold as pairs to add 20 pounds to each dumbbell.
Sport EXP Compatibility
Sport EXP expansion kits are not compatible with Sport 5.5, Sport 9.0, Sport 24, and Sport 50.