Brompton factory part-number:-
QRSPR12DR-SHMNO
Jul-10
12T sprocket, 3.1/2.1 mm thick, for Brompton 2-speed & 1-speed Use only for the applications shown:-
3.1mm 1.5mm 38mm O.D.
3.1mm 1.8mm
BROMPTON BB2 2.2mm
2.2mm
Brompton factory part-number:-
QRSPR12DR-SHMNO
BROMPTON BB1 (12T)
Jul-10
12T sprocket, 3.1/2.1 mm thick, for Brompton 2-speed & 1-speed Use only for the applications shown:-
3.1mm 1.5mm 38mm O.D.
3.1mm 1.8mm
BROMPTON BB2 2.2mm
2.2mm
BROMPTON BB1 (12T)