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Home > Products > Classic Motorcycle Pistons > BSA Pistons

BSA Pistons

BSA Pistons are supplied complete with rings & pins.


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BSA Piston - 148cc (D3, Bantam Major, Two Stroke), Year: 1955-58, +.060

BSA - 148cc (D3, Bantam Major, Two Stroke) Year: 1955-58. (bore 2.244"" +.060) compression height 1.270"",...

BSA Piston - 148cc (D3, Bantam Major, Two Stroke), Year: 1955-58, +.060
£81.17
£79.18

BSA Piston - 150cc (D3, Bantam Major, Two Stroke), Year: 1954, +.015

BSA - 150cc (D3, Bantam Major, Two Stroke) Year: 1954 on, (bore 57mm +.015"") compression height 35mm,...

BSA Piston - 150cc (D3, Bantam Major, Two Stroke), Year: 1954, +.015
£98.10
£95.72

BSA Piston - 150cc (D3, Bantam Major, Two Stroke), Year: 1954, +.020

BSA - 150cc (D3, Bantam Major, Two Stroke) Year: 1954 on, (bore 57mm +.020"") compression height 35mm,...

BSA Piston - 150cc (D3, Bantam Major, Two Stroke), Year: 1954, +.020
£98.10
£95.72

BSA Piston - 150cc (D3, Bantam Major, Two Stroke), Year: 1954, +.020

BSA - 150cc (D3, Bantam Major, Two Stroke) Year: 1954 on, (bore 57mm +.020"") compression height 35mm,...

BSA Piston - 150cc (D3, Bantam Major, Two Stroke), Year: 1954, +.020
£111.80
£109.08

BSA Piston - 173cc (D10 Bantam), Year: 1967, +.020

BSA - 173cc (D10 Bantam) Year: 1967, compression ratio 8.6:1, (D14/4 Bantam, D15 Bantam) Year: 1968-69,...

BSA Piston - 173cc (D10 Bantam), Year: 1967, +.020
£101.33
£98.87

BSA Piston - 173cc (D10 Bantam), Year: 1967, +.040

BSA - 173cc (D10 Bantam) Year: 1967, compression ratio 8.6:1, (D14/4 Bantam, D15 Bantam) Year: 1968-69,...

BSA Piston - 173cc (D10 Bantam), Year: 1967, +.040
£101.33
£98.87

BSA Piston - 173cc (D10 Bantam), Year: 1967, +.060

BSA - 173cc (D10 Bantam) Year: 1967, compression ratio 8.6:1, (D14/4 Bantam, D15 Bantam) Year: 1968-69,...

BSA Piston - 173cc (D10 Bantam), Year: 1967, +.060
£101.33
£98.87

BSA Piston - 173cc (D10 Bantam), Year: 1967, +1.1 MM

BSA - 173cc (D10 Bantam) Year: 1967, compression ratio 8.6:1, (D14/4 Bantam, D15 Bantam) Year: 1968-69,...

BSA Piston - 173cc (D10 Bantam), Year: 1967, +1.1 MM
£101.33
£98.87

BSA Piston - 173cc (D10 Bantam), Year: 1967, STD

BSA - 173cc (D10 Bantam) Year: 1967, compression ratio 8.6:1, (D14/4 Bantam, D15 Bantam) Year: 1968-69,...

BSA Piston - 173cc (D10 Bantam), Year: 1967, STD
£101.33
£98.87

BSA Piston - 173cc (D5, D7, Bantam Super, Silver Bantam, B1 Sunbeam 2Strk), Year: 1958-66, +.040

BSA - 173cc (D5, D7, Bantam Super, Silver Bantam, B1 Sunbeam 2 stroke) Year: 1958-66, compression ratio...

BSA Piston - 173cc (D5, D7, Bantam Super, Silver Bantam, B1 Sunbeam 2Strk), Year: 1958-66, +.040
£78.84
£76.92

BSA Piston - 173cc (D5, D7, Bantam Super, Silver Bantam, B1 Sunbeam 2Strk), Year: 1958-66, +.060

BSA - 173cc (D5, D7, Bantam Super, Silver Bantam, B1 Sunbeam 2 stroke) Year: 1958-66, compression ratio...

BSA Piston - 173cc (D5, D7, Bantam Super, Silver Bantam, B1 Sunbeam 2Strk), Year: 1958-66, +.060
£78.84
£76.92

BSA Piston - 173cc (D5, D7, Bantam Super, Silver Bantam, B1 Sunbeam 2Strk), Year: 1958-66, STD

BSA - 173cc (D5, D7, Bantam Super, Silver Bantam, B1 Sunbeam 2 stroke) Year: 1958-66, compression ratio...

BSA Piston - 173cc (D5, D7, Bantam Super, Silver Bantam, B1 Sunbeam 2Strk), Year: 1958-66, STD
£78.84
£76.92

BSA Piston - 249cc OHV ((C15, 250 Star), Year: 1959, +.020

BSA - 249cc OHV (C15, 250 Star) Year: 1959 on. compression ratio 7.5:1. (bore 67mm +.020"") compression...

BSA Piston - 249cc OHV ((C15, 250 Star), Year: 1959, +.020
£177.00
£172.69

BSA Piston - 249cc OHV ((C15, 250 Star), Year: 1959, +.040

BSA - 249cc OHV (C15, 250 Star) Year: 1959 on. compression ratio 7.5:1. (bore 67mm +.040"") compression...

BSA Piston - 249cc OHV ((C15, 250 Star), Year: 1959, +.040
£144.82
£141.29

BSA Piston - 249cc OHV ((C15, 250 Star), Year: 1959, +.060

BSA - 249cc OHV (C15, 250 Star) Year: 1959 on. compression ratio 7.5:1. (bore 67mm +.060"") compression...

BSA Piston - 249cc OHV ((C15, 250 Star), Year: 1959, +.060
£177.00
£172.69

BSA Piston - 249cc OHV ((C15, 250 Star), Year: 1959, STD

BSA - 249cc OHV (C15, 250 Star) Year: 1959 on. compression ratio 7.5:1. (bore 67mm) compression height...

BSA Piston - 249cc OHV ((C15, 250 Star), Year: 1959, STD
£135.33
£132.04

BSA Piston - 249cc OHV (B33-3, Blue Star Junior), Year: 1933, +.030

BSA - 249cc OHV (B33-3, Blue Star Junior) Year: 1933 (bore 63mm +.030"") compression height 1.7/16, piston...

BSA Piston - 249cc OHV (B33-3, Blue Star Junior), Year: 1933, +.030
£87.49
£85.37

BSA Piston - 249cc OHV (B33-3, Blue Star Junior), Year: 1933, +.060

BSA - 249cc OHV (B33-3, Blue Star Junior) Year: 1933 (bore 63mm +.060"") compression height 1.7/16, piston...

BSA Piston - 249cc OHV (B33-3, Blue Star Junior), Year: 1933, +.060
£87.49
£85.37

BSA Piston - 249cc OHV (B33-3, Blue Star Junior), Year: 1933, STD

BSA - 249cc OHV (B33-3, Blue Star Junior) Year: 1933 (bore 63mm) compression height 1.7/16, piston length...

BSA Piston - 249cc OHV (B33-3, Blue Star Junior), Year: 1933, STD
£87.49
£85.37

BSA Piston - 249cc OHV (Blue Star, B34-3), Year: 1934, +.020

BSA - 249cc OHV (Blue Star, B34-3) Year: 1934, compression ratio 7.2:1 (bore 60mm +.020"") compression...

BSA Piston - 249cc OHV (Blue Star, B34-3), Year: 1934, +.020
£73.24
£71.45

BSA Piston - 249cc OHV (Blue Star, B34-3), Year: 1934, +.040

BSA - 249cc OHV (Blue Star, B34-3) Year: 1934, compression ratio 7.2:1 (bore 60mm +.040"") compression...

BSA Piston - 249cc OHV (Blue Star, B34-3), Year: 1934, +.040
£73.24
£71.45

BSA Piston - 249cc OHV (Blue Star, B34-3), Year: 1934, STD

BSA - 249cc OHV (Blue Star, B34-3) Year: 1934, compression ratio 7.2:1 (bore 60mm) compression height...

BSA Piston - 249cc OHV (Blue Star, B34-3), Year: 1934, STD
£73.24
£71.45

BSA Piston - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 CR: 9.5:1. 1971 (Gold Star 250SS, B25SS, Vlctor 250 B25T) CR: 10:1., +.020

BSA - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 compression ratio 9.5:1. 1971 (Gold Star...

BSA Piston - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 CR: 9.5:1. 1971 (Gold Star 250SS, B25SS, Vlctor 250 B25T) CR: 10:1., +.020
£167.72
£163.65

BSA Piston - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 CR: 9.5:1. 1971 (Gold Star 250SS, B25SS, Vlctor 250 B25T) CR: 10:1., +.030

BSA - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 compression ratio 9.5:1. 1971 (Gold Star...

BSA Piston - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 CR: 9.5:1. 1971 (Gold Star 250SS, B25SS, Vlctor 250 B25T) CR: 10:1., +.030
£167.72
£163.65

BSA Piston - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 CR: 9.5:1. 1971 (Gold Star 250SS, B25SS, Vlctor 250 B25T) CR: 10:1., +.040

BSA - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 compression ratio 9.5:1. 1971 (Gold Star...

BSA Piston - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 CR: 9.5:1. 1971 (Gold Star 250SS, B25SS, Vlctor 250 B25T) CR: 10:1., +.040
£167.72
£163.65

BSA Piston - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 CR: 9.5:1. 1971 (Gold Star 250SS, B25SS, Vlctor 250 B25T) CR: 10:1., +.060

BSA - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 compression ratio 9.5:1. 1971 (Gold Star...

BSA Piston - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 CR: 9.5:1. 1971 (Gold Star 250SS, B25SS, Vlctor 250 B25T) CR: 10:1., +.060
£167.72
£163.65

BSA Piston - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 CR: 9.5:1. 1971 (Gold Star 250SS, B25SS, Vlctor 250 B25T) CR: 10:1., STD

BSA - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 compression ratio 9.5:1. 1971 (Gold Star...

BSA Piston - 249cc OHV (C25 Barracuda) 1967-68 (B25 Starfire) 1969-71 CR: 9.5:1. 1971 (Gold Star 250SS, B25SS, Vlctor 250 B25T) CR: 10:1., STD
£167.72
£163.65

BSA Piston - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58, +.020

BSA - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58. (bore 63mm +.020""), compression height...

BSA Piston - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58, +.020
£130.26
£127.10

BSA Piston - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58, +.030

BSA - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58. (bore 63mm +.030""), compression height...

BSA Piston - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58, +.030
£130.26
£127.10

BSA Piston - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58, +.040

BSA - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58. (bore 63mm +.040""), compression height...

BSA Piston - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58, +.040
£130.26
£127.10

BSA Piston - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58, +.060

BSA - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58. (bore 63mm +.060""), compression height...

BSA Piston - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58, +.060
£130.26
£127.10

BSA Piston - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58, +.75 MM

BSA - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58. (bore 63mm +.75mm), compression height...

BSA Piston - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58, +.75 MM
£130.26
£127.10

BSA Piston - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58, STD

BSA - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58. (bore 63mm), compression height 1.3/16,...

BSA Piston - 250cc OHV (C11, C11G, C12) coil ignition, Year: 1939-58, STD
£130.26
£127.10

BSA Piston - 250cc side valve (B1, B20, C10, C10L), Year: 1933-57, +.010

BSA - 250cc side valve (B1, B20, C10, C10L), Year: 1933-57, 250cc OHV (B2, B18) Year: 1935-36. (bore 63mm...

BSA Piston - 250cc side valve (B1, B20, C10, C10L), Year: 1933-57, +.010
£141.89
£138.43

BSA Piston - 250cc side valve (B1, B20, C10, C10L), Year: 1933-57, +.020

BSA - 250cc side valve (B1, B20, C10, C10L), Year: 1933-57, 250cc OHV (B2, B18) Year: 1935-36. (bore 63mm...

BSA Piston - 250cc side valve (B1, B20, C10, C10L), Year: 1933-57, +.020
£141.89
£138.43

BSA Piston - 250cc side valve (B1, B20, C10, C10L), Year: 1933-57, +.030

BSA - 250cc side valve (B1, B20, C10, C10L), Year: 1933-57, 250cc OHV (B2, B18) Year: 1935-36. (bore 63mm...

BSA Piston - 250cc side valve (B1, B20, C10, C10L), Year: 1933-57, +.030
£141.89
£138.43

BSA Piston - 250cc side valve (B1, B20, C10, C10L), Year: 1933-57, +.040

BSA - 250cc side valve (B1, B20, C10, C10L), Year: 1933-57, 250cc OHV (B2, B18) Year: 1935-36. (bore 63mm...

BSA Piston - 250cc side valve (B1, B20, C10, C10L), Year: 1933-57, +.040
£141.89
£138.43
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