C15


The BSA C15 was the first four-stroke unit-construction single produced by BSA. If you want to ride a four-stroke in Premier Lightweight, this is the go-to bike, with excellent performance and parts availability..

For general parts, please see the product indexon the left.

Parts available for C15
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Lucas Horn/Dipswitch
Replica Horn/Dipswitch, Lucas #31563. Clamps-on to 7/8" handlebar, with 27"wire lead. Can also be used as a killbutton and/or lights on/off switch.
Lucas Horn/Dipswitch - $22.00
Replica Horn/Dipswitch, Lucas #31563. Clamps-on to 7/8" handlebar, with 27"wire lead. Can also be used as a killbutton and/or lights on/off switch.
Motorcycle Model A10, A50, A65, Any, B25, B40, B44, B50, C15, Gold Star, T100, T120, T140, Tiger Cub, TR6
Motorcycle Manufacturer Any, Ariel, BSA, Matchless, Rickman, Triumph
   
Lucas Horn/Dipswitch
Price $22.00
Description Replica Horn/Dipswitch, Lucas #31563. Clamps-on to 7/8" handlebar, with 27"wire lead. Can also be used as a killbutton and/or lights on/off switch.
Motorcycle Model A10, A50, A65, Any, B25, B40, B44, B50, C15, Gold Star, T100, T120, T140, Tiger Cub, TR6
Motorcycle Manufacturer Any, Ariel, BSA, Matchless, Rickman, Triumph
Number Plate, Alloy, 9x11

Aluminum-alloy number plate is finished with a beaded edge. Undrilled, no mounting hardware included.

Number Plate, Alloy, 9x11"Oval - $14.00

Aluminum-alloy number plate is finished with a beaded edge. Undrilled, no mounting hardware included.

Motorcycle Model #18, #42, #48, #68, A10, A50, A65, Any, B25, B40, B44, B50, C15, Challenger, G85, Gold Star, Griffon, Hawkstone/MCS, Metisse, MkIII, MkIV, Pursang, Q.U.B., Stiletto, Stormer, T100, T120, T140, TR6
Motorcycle Manufacturer AJS, Any, Ariel, BSA, Bultaco, Cotton, CZ, Greeves, Husqvarna, Maico, Matchless, Montesa, Ossa, Penton, Rickman, Triumph
   
Number Plate, Alloy, 9x11"Oval
Price $14.00
Description

Aluminum-alloy number plate is finished with a beaded edge. Undrilled, no mounting hardware included.

Motorcycle Model #18, #42, #48, #68, A10, A50, A65, Any, B25, B40, B44, B50, C15, Challenger, G85, Gold Star, Griffon, Hawkstone/MCS, Metisse, MkIII, MkIV, Pursang, Q.U.B., Stiletto, Stormer, T100, T120, T140, TR6
Motorcycle Manufacturer AJS, Any, Ariel, BSA, Bultaco, Cotton, CZ, Greeves, Husqvarna, Maico, Matchless, Montesa, Ossa, Penton, Rickman, Triumph
Number Plate, Plastic, 9x11

Nice-quality plastic oval with a beaded edge. Available in six colors.

Number Plate, Plastic, 9x11"Oval - $3.00

Nice-quality plastic oval with a beaded edge. Available in six colors.

Motorcycle Model #18, #42, #48, #68, A10, A50, A65, Any, B25, B40, B44, B50, C15, Challenger, CR125, CR250, G85, Gold Star, Griffon, Hawkstone/MCS, Metisse, Micro Metisse, MkIII, MkIV, MX250, Phantom, Pursang, Q.U.B., Stiletto, Stormer, T100, T120, T140, TM125, TR6, XL250, YZ400
Motorcycle Manufacturer AJS, Any, BSA, Bultaco, Cotton, CZ, Greeves, Honda, Husqvarna, Kawasaki, Maico, Matchless, Montesa, Ossa, Penton, Rickman, Suzuki, Triumph, Villiers, Yamaha
   
Number Plate, Plastic, 9x11"Oval
Price $3.00
Description

Nice-quality plastic oval with a beaded edge. Available in six colors.

Motorcycle Model #18, #42, #48, #68, A10, A50, A65, Any, B25, B40, B44, B50, C15, Challenger, CR125, CR250, G85, Gold Star, Griffon, Hawkstone/MCS, Metisse, Micro Metisse, MkIII, MkIV, MX250, Phantom, Pursang, Q.U.B., Stiletto, Stormer, T100, T120, T140, TM125, TR6, XL250, YZ400
Motorcycle Manufacturer AJS, Any, BSA, Bultaco, Cotton, CZ, Greeves, Honda, Husqvarna, Kawasaki, Maico, Matchless, Montesa, Ossa, Penton, Rickman, Suzuki, Triumph, Villiers, Yamaha
Oil Seal Set, BSA Unit Singles

Complete set of seals needed for an engine rebuild. For side-points models, specify 5/8"or 3/4"kickstart shaft.

Oil Seal Set, BSA Unit Singles - $15.00

Complete set of seals needed for an engine rebuild. For side-points models, specify 5/8"or 3/4"kickstart shaft.

Motorcycle Model B25, B40, B44, B50, C15
Motorcycle Manufacturer BSA
   
Oil Seal Set, BSA Unit Singles
Price $15.00
Description

Complete set of seals needed for an engine rebuild. For side-points models, specify 5/8"or 3/4"kickstart shaft.

Motorcycle Model B25, B40, B44, B50, C15
Motorcycle Manufacturer BSA
Petcock, British 1/4 BSP

The most-common British petcock size is 1/4 British Standard Pipe (measures .520"x 19tpi). This chrome fuel tap has no standpipe, and takes a 1/4 BSP nut on the fuel-line side.

Petcock, British 1/4 BSP - $17.00

The most-common British petcock size is 1/4 British Standard Pipe (measures .520"x 19tpi). This chrome fuel tap has no standpipe, and takes a 1/4 BSP nut on the fuel-line side.

Motorcycle Model A10, A50, A65, Anglian, Any, B25, B40, B50, C15, Challenger, G85, Gold Star, Griffon, Hawkstone/MCS, HT5, Micro Metisse, MkIII, MkIV, Q.U.B., Scottish, Stormer, T100, T120, T140, Tiger Cub, TR6
Motorcycle Manufacturer AJS, Ariel, BSA, Cotton, Greeves, Matchless, Rickman, Triumph
   
Petcock, British 1/4 BSP
Price $17.00
Description

The most-common British petcock size is 1/4 British Standard Pipe (measures .520"x 19tpi). This chrome fuel tap has no standpipe, and takes a 1/4 BSP nut on the fuel-line side.

Motorcycle Model A10, A50, A65, Anglian, Any, B25, B40, B50, C15, Challenger, G85, Gold Star, Griffon, Hawkstone/MCS, HT5, Micro Metisse, MkIII, MkIV, Q.U.B., Scottish, Stormer, T100, T120, T140, Tiger Cub, TR6
Motorcycle Manufacturer AJS, Ariel, BSA, Cotton, Greeves, Matchless, Rickman, Triumph
Petcock, British, 1/8 or 1/4 BSP
Premium quality fuel tap, CNC-machined brass with nickel plating. Stainless steel filter gauze with internal anti-crush cage. Resistant to unleaded fuels with added ethanol content. Two thread sizes.
Petcock, British, 1/8 or 1/4 BSP - $25.00
Premium quality fuel tap, CNC-machined brass with nickel plating. Stainless steel filter gauze with internal anti-crush cage. Resistant to unleaded fuels with added ethanol content. Two thread sizes.
Motorcycle Model A10, A50, A65, Anglian, Any, B25, B40, B44, B50, C15, Challenger, G85, Gold Star, Griffon, Hawkstone/MCS, HT5, Metisse, Micro Metisse, MkIII, MkIV, Q.U.B., Scottish, Stormer, T100, T120, T140, Tiger Cub, TR6
Motorcycle Manufacturer AJS, Any, Ariel, BSA, Cotton, Greeves, Matchless, Rickman, Triumph
   
Petcock, British, 1/8 or 1/4 BSP
Price $25.00
Description Premium quality fuel tap, CNC-machined brass with nickel plating. Stainless steel filter gauze with internal anti-crush cage. Resistant to unleaded fuels with added ethanol content. Two thread sizes.
Motorcycle Model A10, A50, A65, Anglian, Any, B25, B40, B44, B50, C15, Challenger, G85, Gold Star, Griffon, Hawkstone/MCS, HT5, Metisse, Micro Metisse, MkIII, MkIV, Q.U.B., Scottish, Stormer, T100, T120, T140, Tiger Cub, TR6
Motorcycle Manufacturer AJS, Any, Ariel, BSA, Cotton, Greeves, Matchless, Rickman, Triumph
Primary Chain, Double-Row

High-quality primary chains made from Italian Regina material. Choose the one for your bike.

Primary Chain, Double-Row - $35.00

High-quality primary chains made from Italian Regina material. Choose the one for your bike.

Motorcycle Model B25, B40, B44, B50, C15, Challenger, Griffon, M.A.R., Metisse, Phantom, Q.U.B., Stiletto, Stormer, T100, T120, Tiger Cub, TR6
Motorcycle Manufacturer AJS, BSA, Cotton, Greeves, Maico, Ossa, Rickman, Triumph, Villiers
   
Primary Chain, Double-Row
Price $35.00
Description

High-quality primary chains made from Italian Regina material. Choose the one for your bike.

Motorcycle Model B25, B40, B44, B50, C15, Challenger, Griffon, M.A.R., Metisse, Phantom, Q.U.B., Stiletto, Stormer, T100, T120, Tiger Cub, TR6
Motorcycle Manufacturer AJS, BSA, Cotton, Greeves, Maico, Ossa, Rickman, Triumph, Villiers
Rear Sprocket, Alloy
Top-quality, US-made alloy rear sprockets for every application under the sun, in any chain size. Far too many to list here, please give us a ring with your requirements. Quick turnaround for custom items, competitive prices (varies by tooth count and chain size).
Rear Sprocket, Alloy -
Top-quality, US-made alloy rear sprockets for every application under the sun, in any chain size. Far too many to list here, please give us a ring with your requirements. Quick turnaround for custom items, competitive prices (varies by tooth count and chain size).
Motorcycle Model #18, #42, #48, #68, 9E-37A, A10, A50, A65, Alpina, Anglian, Any, B25, B40, B44, B50, C15, Challenger, Cota, CR125, CR250, G85, Gold Star, Griffon, Hawkstone/MCS, HT5, M.A.R., Matador, Metisse, Micro Metisse, MkIII, MkIV, MX250, Phantom, Pursang, Q.U.B., RL250, Scottish, Sherpa T, Stiletto, Stormer, T100, T120, T140, Tiger Cub, TL125, TL250, TLR200/Reflex, TM125, TR6, TY175, TY250, TY80, XL250, YZ400
Motorcycle Manufacturer AJS, Any, Ariel, BSA, Bultaco, Cotton, CZ, Greeves, Honda, Husqvarna, Kawasaki, Maico, Matchless, Montesa, Ossa, Penton, Rickman, Suzuki, Triumph, Villiers, Yamaha
   
Rear Sprocket, Alloy
Price
Description Top-quality, US-made alloy rear sprockets for every application under the sun, in any chain size. Far too many to list here, please give us a ring with your requirements. Quick turnaround for custom items, competitive prices (varies by tooth count and chain size).
Motorcycle Model #18, #42, #48, #68, 9E-37A, A10, A50, A65, Alpina, Anglian, Any, B25, B40, B44, B50, C15, Challenger, Cota, CR125, CR250, G85, Gold Star, Griffon, Hawkstone/MCS, HT5, M.A.R., Matador, Metisse, Micro Metisse, MkIII, MkIV, MX250, Phantom, Pursang, Q.U.B., RL250, Scottish, Sherpa T, Stiletto, Stormer, T100, T120, T140, Tiger Cub, TL125, TL250, TLR200/Reflex, TM125, TR6, TY175, TY250, TY80, XL250, YZ400
Motorcycle Manufacturer AJS, Any, Ariel, BSA, Bultaco, Cotton, CZ, Greeves, Honda, Husqvarna, Kawasaki, Maico, Matchless, Montesa, Ossa, Penton, Rickman, Suzuki, Triumph, Villiers, Yamaha
Rims, Italian Chrome

Italian-made Radaellis are an economical choice for chrome rims. Chrome quality is not the very best, but quite acceptable. There are no external markings, and they are shaped like a Dunlop rim. Drilled to match your hub. The sizes and drill patterns listed are in stock; delivery on special-order items takes weeks. Please contact us if you don't see what you need.

Rims, Italian Chrome - $105.00

Italian-made Radaellis are an economical choice for chrome rims. Chrome quality is not the very best, but quite acceptable. There are no external markings, and they are shaped like a Dunlop rim. Drilled to match your hub. The sizes and drill patterns listed are in stock; delivery on special-order items takes weeks. Please contact us if you don't see what you need.

Motorcycle Model A10, A50, A65, Anglian, Any, B25, B40, B44, B50, C15, Challenger, Gold Star, Griffon, Hawkstone/MCS, HT5, Metisse, Micro Metisse, MkIII, MkIV, Q.U.B., Scottish, Stormer, T100, T120, T140, Tiger Cub, TR6
Motorcycle Manufacturer AJS, Any, Ariel, BSA, Cotton, CZ, Greeves, Husqvarna, Matchless, Penton, Rickman, Triumph
   
Rims, Italian Chrome
Price $105.00
Description

Italian-made Radaellis are an economical choice for chrome rims. Chrome quality is not the very best, but quite acceptable. There are no external markings, and they are shaped like a Dunlop rim. Drilled to match your hub. The sizes and drill patterns listed are in stock; delivery on special-order items takes weeks. Please contact us if you don't see what you need.

Motorcycle Model A10, A50, A65, Anglian, Any, B25, B40, B44, B50, C15, Challenger, Gold Star, Griffon, Hawkstone/MCS, HT5, Metisse, Micro Metisse, MkIII, MkIV, Q.U.B., Scottish, Stormer, T100, T120, T140, Tiger Cub, TR6
Motorcycle Manufacturer AJS, Any, Ariel, BSA, Cotton, CZ, Greeves, Husqvarna, Matchless, Penton, Rickman, Triumph
Rubber Carb Cover, Amal Concentric

Seals dirt and water from entering your Concentric around the throttle cable and carb top.

Rubber Carb Cover, Amal Concentric - $14.00

Seals dirt and water from entering your Concentric around the throttle cable and carb top.

Motorcycle Model Alpina, Anglian, Any, B40, C15, Cota, HT5, M.A.R., Pursang, Sherpa T, Stormer, Tiger Cub
Motorcycle Manufacturer AJS, Ariel, BSA, Bultaco, Greeves, Montesa, Triumph
   
Rubber Carb Cover, Amal Concentric
Price $14.00
Description

Seals dirt and water from entering your Concentric around the throttle cable and carb top.

Motorcycle Model Alpina, Anglian, Any, B40, C15, Cota, HT5, M.A.R., Pursang, Sherpa T, Stormer, Tiger Cub
Motorcycle Manufacturer AJS, Ariel, BSA, Bultaco, Greeves, Montesa, Triumph