I have been buying and researching Triumph R3 seats for ages but only just discovered the Touring Dual seat with rider's backrest was replaced with the Solo seat and Comfort Pillion sold together with a new number.
So there are just 3 different R3 rider's back rest versions, two for Tourings and one for Std/ Classic/Roadster
LONGHAUL TOURING SEAT - DUAL
A9700209 for Tourings
Shown with ADJUSTABLE RIDER BACKREST - LONGHAUL
A9708158
Replaced by
Longhaul Seat Replacemant Kit T2302130 which is actually both items below.
BUCKET SOLO SEAT
A9708162 for Tourings
Shown with ADJUSTABLE RIDER BACKREST - LONGHAUL
A9708158
COMFORT PILLION SEAT
A9708163 for Tourings
CLASSIC TOURING SEAT - DUAL
A9708164 for Std/ Classic/Roadster
Shown with ADJUSTABLE RIDER BACKREST
A9708160