Atlas TC289DAA Dual Assist Arm Wheel Clamp Tire ChangerAtlas TC289DAA Dual Assist Arm Wheel Clamp Tire Changer with Bead Blaster The Atlas TC289 DAA wheel clamp tire changer is the Atlas TC289 wheel clamp tire changer that has been equipped with the pneumatic Atlas LH assist arm plus the Atlas RF assist arm that includes a bead roller and second bead lifting pressing disc. The addition of the Dual Arm Assembly (DAA) to the Atlas TC289 makes the Atlas TC289DAA one of the most powerful wheel clamp tire