Classic Bike Parts, Pistons & Gifts

We sell a wide range of Classic Motorcycle pistons, catering for almost every model of classic bike. We also produce a wide range of classic motorcycle posters, artwork and limited edition prints. Products recently added to our catalogue include, metal signs and and gasket sets. Due to recent changes in US shipping costs, unfortunately, we are currently unable to post to this country. If customers enter a US address but select a different country to attempt to purchase, the payment will have to be refunded, less a refund charge which includes the charges made to us from Credit Card/Paypal.

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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
£73.15
£71.38
InfoBuy

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

BSA Piston - 123cc (D1, Bantam, 2Strk), Year: 1947-63, +.040
£73.15
£71.38
InfoBuy

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

BSA Piston - 123cc (D1, Bantam, 2Strk), Year: 1947-63, +.060
£73.15
£71.38
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
£73.15
£71.38
InfoBuy

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

BSA Piston - 123cc (D1, Bantam, 2Strk), Year: 1947-63, STD
£73.15
£71.38
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
£101.06
£98.60
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
£101.06
£98.60
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
£115.16
£112.37
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
£136.32
£123.96
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
£136.32
£123.96
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
£136.32
£123.96
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
£136.32
£123.96
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
£136.32
£123.96
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
£182.34
£177.89
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
£149.18
£145.55
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
£182.34
£177.89
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
£139.41
£136.02
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
£90.12
£87.94
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
£90.12
£87.94
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
£90.12
£87.94
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
£75.44
£73.60
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
£75.44
£73.60
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
£75.44
£73.60
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
£172.77
£168.58
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
£172.77
£168.58
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
£172.77
£168.58
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
£172.77
£168.58
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
£172.77
£168.58
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
£134.19
£130.93
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
£134.19
£130.93
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
£134.19
£130.93
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
£134.19
£130.93
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
£134.19
£130.93
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
£134.19
£130.93
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
£146.16
£142.60
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
£146.16
£142.60
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
£146.16
£142.60
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
£146.16
£142.60
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
£146.16
£142.60
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
£146.16
£142.60
InfoBuy

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

BSA Piston - 343cc OHV (B40, 350 Star), Year: 1961-62, +.020
£127.37
£124.28
InfoBuy

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

BSA Piston - 343cc OHV (B40, 350 Star), Year: 1961-62, +.040
£127.37
£124.28
InfoBuy

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

BSA Piston - 343cc OHV (B40, 350 Star), Year: 1961-62, STD
£127.37
£124.28
InfoBuy

BSA Piston - 343cc OHV (B40, SS90), Year: 1963-65, +.020

BSA - 343cc OHV (B40, SS90) Year 1963-65, compression ratio 8.75:1 (bore 79mm +.020"") compression height...

BSA Piston - 343cc OHV (B40, SS90), Year: 1963-65, +.020
£189.87
£185.24
InfoBuy

BSA Piston - 343cc OHV (B40, SS90), Year: 1963-65, +.030

BSA - 343cc OHV (B40, SS90) Year 1963-65, compression ratio 8.75:1 (bore 79mm +.030"") compression height...

BSA Piston - 343cc OHV (B40, SS90), Year: 1963-65, +.030
£189.87
£185.24
InfoBuy

BSA Piston - 348cc OHV (B32 Gold Star), Year: 1955, +1.5 MM

BSA Piston - 348cc OHV (B32 Gold Star), Year: 1955, +1.5 MM
£193.86
£189.12
InfoBuy

BSA Piston - 348cc OHV (De Luxe Single Port, R35-4, R36-17), Year: 1935-36, +.020

BSA - 348cc OHV (De Luxe Single Port, R35-4, R36-17) Year: 1935-36, (B23) Year: 1939, (B26, C23) Year:...

BSA Piston - 348cc OHV (De Luxe Single Port, R35-4, R36-17), Year: 1935-36, +.020
£115.85
£113.03
InfoBuy

BSA Piston - 348cc OHV (De Luxe Single Port, R35-4, R36-17), Year: 1935-36, +.030

BSA - 348cc OHV (De Luxe Single Port, R35-4, R36-17) Year: 1935-36, (B23) Year: 1939, (B26, C23) Year:...

BSA Piston - 348cc OHV (De Luxe Single Port, R35-4, R36-17), Year: 1935-36, +.030
£115.85
£113.03
InfoBuy

BSA Piston - 348cc OHV (De Luxe Single Port, R35-4, R36-17), Year: 1935-36, +.040

BSA - 348cc OHV (De Luxe Single Port, R35-4, R36-17) Year: 1935-36, (B23) Year: 1939, (B26, C23) Year:...

BSA Piston - 348cc OHV (De Luxe Single Port, R35-4, R36-17), Year: 1935-36, +.040
£115.85
£113.03
InfoBuy

BSA Piston - 348cc OHV (De Luxe Single Port, R35-4, R36-17), Year: 1935-36, +.060

BSA - 348cc OHV (De Luxe Single Port, R35-4, R36-17) Year: 1935-36, (B23) Year: 1939, (B26, C23) Year:...

BSA Piston - 348cc OHV (De Luxe Single Port, R35-4, R36-17), Year: 1935-36, +.060
£115.85
£113.03
InfoBuy
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