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BSA Engine Parts

BSA Primary Chaincase Gasket Cork B31/B32/B33/B34/C10/C11/M20/M21/M33

BSA Primary Chaincase Gasket Cork B31/B32/B33/B34/C10/C11/M20/M21/M33

suitable for: BSA  B31/B32/B33/B34/C10/C11 1949-53 M20/M21/M33 Primary Drive Rigid and Plunger Mod. Metal Chaincases Dynamo Mod. 1937-57 Made in England
BSA Piston 250cc C10/C11/C11G/C12 +040 = 64 mm

BSA Piston 250cc C10/C11/C11G/C12 +040 = 64 mm

BSA 250cc Piston Assembly complete Piston Clearance 0.12mm or 45thou Compression Height: 25.2mm C11 1939-55 C12 1955-58 can also be used for C10, even if they usually had a flat...
BSA A10 Cylinder Liners + Std. Pistons

BSA A10 Cylinder Liners + Std. Pistons

Bsa A10 Liners and STD pistonsPrice per Pair complete 8.25:1 70 mmItalian made-Gandinifor Iron and Alloy Head from 1950-62Piston Clearence 0.12mm or 45thouCylinder Liner BSA A10/PairID 68.5 mm OD 80...
BSA Rigid & Plunger Models Cork Gasket

BSA Rigid & Plunger Models Cork Gasket

suitable for: Cork Gasket BSA Rigid & Plunger ModelsOil Bath F/Rest   Made in England
BSA Gold Star Inlet- Valve Guide

BSA Gold Star Inlet- Valve Guide

BSA Gold Star Inlet- Valve Guide L: 44.5mm D 16mm ID: 8.9mm
BSA Gold Star Exhaust- Valve Guide

BSA Gold Star Exhaust- Valve Guide

BSA Gold Star Exhaust- Valve Guide L: 46.4mm D 16mm ID: 9.5mm
BSA Engine Gasket Set 500cc. OHV Gold Star B34/DBD 1956-63

BSA Engine Gasket Set 500cc. OHV Gold Star B34/DBD 1956-63

suitable for: BSA 500cc. OHV Gold Star B34   Made in England More BSA Gasket Sets on www.vintage-motorcycle.com
Triumph/BSA Oil Pressure Relief Valve

Triumph/BSA Oil Pressure Relief Valve

Oil Pressure Relief Valve Triumph Pre Unit/Unit3TA.T21.T90.T100ss.T100c.TR5.T100.T100A.T100R.5T.6T.T110.TRW.T120.T120R.T120TT.TR6R.T140V.TR6V.TR7V.BSA A50.A65.B44.B50BSA A7/A102 holes Made in England
BSA In & Ex Valve C11/C11G/C12 1946-56

BSA In & Ex Valve C11/C11G/C12 1946-56

BSA In & Ex Valve C11/C11G/C12 1946-56 Made in England
BSA Oil Seal Timing Cover B31.B32.B33.B34.Gold Star.M20.M21.M33.

BSA Oil Seal Timing Cover B31.B32.B33.B34.Gold Star.M20.M21.M33.

Oil Seal Timing Cover BSA.2 per bike B31.B32.B33.B34.Gold Star.M20.M21.M33.OD: 19mmID: 10mmH: 9mm
BSA/Triumph/AMC Ball Bearing 6205

BSA/Triumph/AMC Ball Bearing 6205

Ballbearing Triumph, BSA Wheelbearing 6205 Clutch and Gearbox sect. Triumph T15, T20 Engine Sect. BSA AMC Wheel Bearing also Gold Star BSA M20 Main Bearing
BSA B40 Piston +60

BSA B40 Piston +60

8:1 Compression BSA B40 Piston +60 = 80.5mm Pin diameter: 19.00 mm Middle Gudgeon Pin to top of piston: 41.25 mm Length Gudgeon Pin: 66 mm Piston Clearence 0.12mm or...
BSA C10/C11/C11G/C12 250cc Piston STD 63 mm

BSA C10/C11/C11G/C12 250cc Piston STD 63 mm

Piston Assembly completeBSA C10/C11/C12 Piston Std.incl. rings, gudgeon pin, circlipsSTD= 63mm   Piston Clearance 0.12mm or 45thouC11 1939-55C12 1955-58can also be used for C10, even if they usually had a flat...
Cylinder Liner BSA A10/Pair

Cylinder Liner BSA A10/Pair

Cylinder Liner BSA A10/Pair ID 68.5 mm OD 80 mm L: 160 mm Broken Skirt on problem at STD 70mm you have a 5mm skirt +80 = 72mm pistons 3mm...
Triumph/BSA Ball Bearing Crankshaft

Triumph/BSA Ball Bearing Crankshaft

Triumph Bearing Crankshaft/Ball Bearing RMS 9.C3. MJ1.1/8JC3 driveside OD: 2 13/16" - 71,5mm ID: 1 1/8" - 28,5mm W: 13/16" - 20,8mm RHP or NKE
BSA Engine Sprocket B31,B32,B33,B34,Gold Star.M20.M21.M33/ 23T. 4-Lobe

BSA Engine Sprocket B31,B32,B33,B34,Gold Star.M20.M21.M33/ 23T. 4-Lobe

Engine Sprocket 23T. BSA4 Lobe BSA B31,B32,B33,B34, Gold Star.M20.M21.M33New110-046428 chain1/2" x 5/16" Made in England
BSA B40 piston +20

BSA B40 piston +20

BSA Piston complete 8:1 Compression +20 = 79, 5 mm Piston Clearence 0.12mm or 45thou Gudgeon Pin: 19.00 mm Compression Height: 40.9mm incl. gudeon pin, piston, rings, circlips
BSA CB/DB Goldstar 350cc Piston 040

BSA CB/DB Goldstar 350cc Piston 040

BSA CB/DB Goldstar 350cc Piston 040 72 mm Piston Clearance 0.12mm or 45thou
BSA Piston M20 +60

BSA Piston M20 +60

BSA Kolben M20 +060 Replica copmplete 82mm +060 (=83.5mm) Piston Clearance 0.12mm or 45thou These pistons now come with 4 piston rings. You can also use them only with 3...
BSA B33/M33 Piston 500 cc +020, 1946-53

BSA B33/M33 Piston 500 cc +020, 1946-53

BSA B33 Piston +020= 85.5 mm1946-1953Hep 11341+2065-1260piston rings slightly rusty to be used with flywheels65-1235 and 65-1235to be used with conrod 66-482Piston Clearance 0.12mm or 45thouCompression Height: 31mmPiston top -...