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|   | Aero Z | Summary | 
| None   Requires a compatible Back Height Range. Set Back Height must be within Seat Back Height Range limitations. | no | |
| AEZSB6 | Integrated   Requires a compatible Back Height Range. Set Back Height must be within Seat Back Height Range limitations. | int | 
| AEZSB7 | Integrated Fold-Down   Requires Tension Adjustable by Straps Back Upholstery or None (Back Upholstery). Requires a compatible Back Height Range. Set Back Height must be within Seat Back Height Range limitations. | intfold | 
| AEZSB8 | Bolt-On   Not available with ROHO® AGILITY® Active Seat Back Support. Not available with ROHO® AGILITY® Carbon Seat Back Upgrade. Requires a compatible Back Height Range. Set Back Height must be within Seat Back Height Range limitations. Requires 4" (10.2 cm) Deep Backrest Rigidizer Bar (10.2 cm Deep Backrest Rigidizer Bar). | bolton | 
| AEZSB9 | Bolt-On Height-Adjustable   Not available with ROHO® AGILITY® Active Seat Back Support. Not available with ROHO® AGILITY® Carbon Seat Back Upgrade. Requires a compatible Back Height Range. Set Back Height must be within Seat Back Height Range limitations. Requires 4" (10.2 cm) Deep Backrest Rigidizer Bar (10.2 cm Deep Backrest Rigidizer Bar). | boltonadj | 



