BSA Piston 85mm B50 Goldstar +40 500cc Unit Construction. BSA DBD Gold Star Pre Unit STD
Diameter of this piston = 85mm
with gudgeon pin, circlips and piston rings
Piston Clearance 0.12mm or 45thou
Compression 10:1
compr. hight: approx. 32.6 mm
Gudgeon Pin Diameter: 19.00mm
Please look at all pictures
BSA DBD Gold Star Pre Unit 500cc Kolben +060. 86. mm. BSA Unit Gold Star 500cc +100 GPM Slipper 86.5 mm 9.5:1 Piston Clearance 0.12mm or 45thou Can be used on BSA B50 as a +80 Pistonwith Piston Rings, Circlips and Gudgeon Pinplease look at all pictures
BSA DBD Gold Star 500cc Piston +040= 86 mm. BSA Unit Gold Star 500cc +080
Diam. 86 mm
9.5:1
Pin Diameter: 19mm
including gudgeon Pin, piston rings and circlips
Piston Clearance 0.12mm or 45thou
Please look at all pictures
Oil Pressure Relase Valve and indicator (Relief)
Triumph Pre Unit/Unit
3TA.T21.T90.T100ss.T100c.TR5.
T100.T100A.T100R.5T.6T.T110.TRW.T120.T120R.T120TT.
TR6R.T140V.TR6V.TR7V.
BSA A50.A65.B44.B50
BSA A7/A10
2 holes
Made in England
replaces these part numbers E3204. GS250. GS251. GS254. GS248. E2795
Please look at all pictures