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|   | Aero T | Summary | 
| None   Requires a compatible Back Height Range. Set Back Height must be within Seat Back Height Range limitations. | no | |
| AETSB6 | Integrated   Requires a compatible Back Height Range. Set Back Height must be within Seat Back Height Range limitations. | NCO int | 
| AETSB7 | 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. | $125 intfold | 
| AETSB8 | 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). | $217 bolton | 
| AETSB9 | 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). | $363 boltonadj | 



