Atlas TC229DAA Dual Assist Arm Wheel Clamp Tire ChangerAtlas TC229DAA Dual Assist Arm Electric Pneumatic Wheel Clamp Tire Changer with Bead Blaster The Atlas TC229DAA wheel clamp tire changer is the Atlas TC229 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 TC229 makes the Atlas TC229DAA one of the most powerful