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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 - 123cc (D1, Bantam, 2Strk), Year: 1947-63, +.020

BSA Piston - 123cc (D1, Bantam, 2Strk), Year: 1947-63, +.020
£71.72
£69.99
InfoBuy

BSA Piston - 123cc (D1, Bantam, 2Strk), Year: 1947-63, +.040

BSA Piston - 123cc (D1, Bantam, 2Strk), Year: 1947-63, +.040
£71.72
£69.99
InfoBuy

BSA Piston - 123cc (D1, Bantam, 2Strk), Year: 1947-63, +.060

BSA Piston - 123cc (D1, Bantam, 2Strk), Year: 1947-63, +.060
£71.72
£69.99
InfoBuy

BSA Piston - 123cc (D1, Bantam, 2Strk), Year: 1947-63, +1.6 MM

BSA Piston - 123cc (D1, Bantam, 2Strk), Year: 1947-63, +1.6 MM
£71.72
£69.99
InfoBuy

BSA Piston - 123cc (D1, Bantam, 2Strk), Year: 1947-63, STD

BSA Piston - 123cc (D1, Bantam, 2Strk), Year: 1947-63, STD
£71.72
£69.99
InfoBuy

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
£99.08
£96.67
InfoBuy

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
£99.08
£96.67
InfoBuy

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
£112.91
£110.17
InfoBuy

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
£133.65
£121.53
InfoBuy

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
£133.65
£121.53
InfoBuy

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
£133.65
£121.53
InfoBuy

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
£133.65
£121.53
InfoBuy

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
£133.65
£121.53
InfoBuy

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
£79.62
£77.68
InfoBuy

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
£178.77
£174.41
InfoBuy

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
£146.26
£142.70
InfoBuy

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
£178.77
£174.41
InfoBuy

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
£136.68
£133.36
InfoBuy

BSA Piston - 249cc OHV (B1, B2, B3, B4), Year: 1930-34, +.030

BSA Piston - 249cc OHV (B1, B2, B3, B4), Year: 1930-34, +.030
£99.64
£97.22
InfoBuy

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
£88.36
£86.22
InfoBuy

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
£88.36
£86.22
InfoBuy

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
£88.36
£86.22
InfoBuy

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
£73.97
£72.16
InfoBuy

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
£73.97
£72.16
InfoBuy

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
£73.97
£72.16
InfoBuy

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
£169.39
£165.28
InfoBuy

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
£169.39
£165.28
InfoBuy

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
£169.39
£165.28
InfoBuy

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
£169.39
£165.28
InfoBuy

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
£169.39
£165.28
InfoBuy

BSA Piston - 249cc OHV High Comp (B30-4, B31-3, B31-2, B32-1, B33-2), Year: 1930-33, +.020

BSA Piston - 249cc OHV High Comp (B30-4, B31-3, B31-2, B32-1, B33-2), Year: 1930-33, +.020
£97.83
£95.44
InfoBuy

BSA Piston - 249cc OHV High Comp (B30-4, B31-3, B31-2, B32-1, B33-2), Year: 1930-33, +.030

BSA Piston - 249cc OHV High Comp (B30-4, B31-3, B31-2, B32-1, B33-2), Year: 1930-33, +.030
£97.83
£95.44
InfoBuy

BSA Piston - 249cc OHV High Comp (B30-4, B31-3, B31-2, B32-1, B33-2), Year: 1930-33, +.040

BSA Piston - 249cc OHV High Comp (B30-4, B31-3, B31-2, B32-1, B33-2), Year: 1930-33, +.040
£97.83
£95.44
InfoBuy

BSA Piston - 249cc OHV High Comp (B30-4, B31-3, B31-2, B32-1, B33-2), Year: 1930-33, +.060

BSA Piston - 249cc OHV High Comp (B30-4, B31-3, B31-2, B32-1, B33-2), Year: 1930-33, +.060
£97.83
£95.44
InfoBuy

BSA Piston - 249cc OHV High Comp (B30-4, B31-3, B31-2, B32-1, B33-2), Year: 1930-33, STD

BSA Piston - 249cc OHV High Comp (B30-4, B31-3, B31-2, B32-1, B33-2), Year: 1930-33, STD
£97.83
£95.44
InfoBuy

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
£131.56
£128.37
InfoBuy

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
£131.56
£128.37
InfoBuy

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
£131.56
£128.37
InfoBuy

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
£131.56
£128.37
InfoBuy

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
£131.56
£128.37
InfoBuy

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
£131.56
£128.37
InfoBuy

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
£143.3
£139.81
InfoBuy

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
£143.3
£139.81
InfoBuy

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
£143.3
£139.81
InfoBuy

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
£143.3
£139.81
InfoBuy

BSA Piston - 250cc side valve (B1, B20, C10, C10L), Year: 1933-57, +.060

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, +.060
£143.3
£139.81
InfoBuy

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

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, STD
£143.3
£139.81
InfoBuy

BSA Piston - 343cc OHV (B40, 350 Star), Year: 1961-62, +.020

BSA Piston - 343cc OHV (B40, 350 Star), Year: 1961-62, +.020
£124.88
£121.85
InfoBuy

BSA Piston - 343cc OHV (B40, 350 Star), Year: 1961-62, +.040

BSA Piston - 343cc OHV (B40, 350 Star), Year: 1961-62, +.040
£124.88
£121.85
InfoBuy

BSA Piston - 343cc OHV (B40, 350 Star), Year: 1961-62, +.060

BSA Piston - 343cc OHV (B40, 350 Star), Year: 1961-62, +.060
£124.88
£121.85
InfoBuy
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