The abbreviation TCA/B means it will fit both TCA and TCB models

For sporting applications

The head offers up to -40% vibration reduction

Replacement for OEM 59904-80 and 59904-84

sw motech seat luggage rack for bmw temp1421 The abbreviation TCA/B means itSW Motech Seat Luggage Rack for BMW This rack replaces the passenger seat and gives you a flat, stable spot to strap down soft luggage. It clicks in like the stock passenger seat, so on most bikes you can still pop it open with the ignition key. The shape follows the tail section closely, which keeps the load planted and prevents odd gaps. It also accepts Pro tank bags with this adapter if you want to run a tank bag on the rear instead of the tank.