B25


15 cubic inches of all-alloy BSA singleness.

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

Parts available for B25
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Seat, BSA B50MX
Seat, BSA B50MX - $289.00

Complete seat has a fiberglass replica of the B50MX base, topped with firm foam and an OE-style black vinyl cover. This seat works excellently on the earlier unit single BSA frames, and is also very popular when building specials.

Seat, BSA B50MX - $289.00

Complete seat has a fiberglass replica of the B50MX base, topped with firm foam and an OE-style black vinyl cover. This seat works excellently on the earlier unit single BSA frames, and is also very popular when building specials.

Motorcycle Model Any, B25, B40, B44, B50, C15
Motorcycle Manufacturer Any, BSA
   
Seat, BSA B50MX
Price $289.00
Description

Complete seat has a fiberglass replica of the B50MX base, topped with firm foam and an OE-style black vinyl cover. This seat works excellently on the earlier unit single BSA frames, and is also very popular when building specials.

Motorcycle Model Any, B25, B40, B44, B50, C15
Motorcycle Manufacturer Any, BSA
Service Manuals, Haynes, BSA or Triumph

The ultimate repair manual for your motorbike. Available for BSA or Triumph; Singles or Twins.

Service Manuals, Haynes, BSA or Triumph - $28.00

The ultimate repair manual for your motorbike. Available for BSA or Triumph; Singles or Twins.

Motorcycle Model A10, A50, A65, B25, B40, B44, B50, C15, Gold Star, T100, T120, T140, Tiger Cub, TR6
Motorcycle Manufacturer BSA, Rickman, Triumph
   
Service Manuals, Haynes, BSA or Triumph
Price $28.00
Description

The ultimate repair manual for your motorbike. Available for BSA or Triumph; Singles or Twins.

Motorcycle Model A10, A50, A65, B25, B40, B44, B50, C15, Gold Star, T100, T120, T140, Tiger Cub, TR6
Motorcycle Manufacturer BSA, Rickman, Triumph
Shift Lever, BSA Unit Singles/Twins, Triumph Cub
Nice-quality, chrome-plated shift lever fits all BSA unit-construction singles and twins, and Triumph's Tiger Cub. Made in Taiwan.
Shift Lever, BSA Unit Singles/Twins, Triumph Cub - $27.00
Nice-quality, chrome-plated shift lever fits all BSA unit-construction singles and twins, and Triumph's Tiger Cub. Made in Taiwan.
Motorcycle Model A50, A65, B25, B40, B44, B50, C15, Tiger Cub
Motorcycle Manufacturer BSA, Triumph
   
Shift Lever, BSA Unit Singles/Twins, Triumph Cub
Price $27.00
Description Nice-quality, chrome-plated shift lever fits all BSA unit-construction singles and twins, and Triumph's Tiger Cub. Made in Taiwan.
Motorcycle Model A50, A65, B25, B40, B44, B50, C15, Tiger Cub
Motorcycle Manufacturer BSA, Triumph
Shocks, NJB MX Expert

The NJB MX Expert shocks have been extensively tested for years by top-level riders, thus providing spectacular performance and fade resistance, on a level with the most-expensive vintage MX shocks in the world. Available with a single-rate spring or a dual-rate spring set-up to suit all riders and price points. They are available in 13.0", 13.4", and 14.0"lengths. Priced as a pair, includes bushes and springs.

Shocks, NJB MX Expert - $245.00

The NJB MX Expert shocks have been extensively tested for years by top-level riders, thus providing spectacular performance and fade resistance, on a level with the most-expensive vintage MX shocks in the world. Available with a single-rate spring or a dual-rate spring set-up to suit all riders and price points. They are available in 13.0", 13.4", and 14.0"lengths. Priced as a pair, includes bushes and springs.

Motorcycle Model #18, #42, #48, #68, A10, A50, A65, Alpina, Any, B25, B40, B44, B50, C15, Challenger, CR125, CR250, G85, Gold Star, Griffon, Hawkstone/MCS, Matador, Metisse, Micro Metisse, MkIII, MkIV, MX250, Phantom, Pursang, Q.U.B., Stiletto, Stormer, T100, T120, T140, Tiger Cub, TM125, TR6, XL250, YZ400
Motorcycle Manufacturer AJS, Any, Ariel, BSA, Bultaco, Cotton, CZ, Greeves, Honda, Husqvarna, Kawasaki, Maico, Matchless, Montesa, Ossa, Penton, Rickman, Suzuki, Triumph, Yamaha
   
Shocks, NJB MX Expert
Price $245.00
Description

The NJB MX Expert shocks have been extensively tested for years by top-level riders, thus providing spectacular performance and fade resistance, on a level with the most-expensive vintage MX shocks in the world. Available with a single-rate spring or a dual-rate spring set-up to suit all riders and price points. They are available in 13.0", 13.4", and 14.0"lengths. Priced as a pair, includes bushes and springs.

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

These popular aluminum-alloy sidepanels require some final fitting by you, which can normally be accomplished by hand. They work on Gold Star, B44 and B50-style frames. Sold as a pair.

Sidepanels, BSA Alloy - $75.00

These popular aluminum-alloy sidepanels require some final fitting by you, which can normally be accomplished by hand. They work on Gold Star, B44 and B50-style frames. Sold as a pair.

Motorcycle Model B25, B40, B44, B50, C15
Motorcycle Manufacturer BSA
   
Sidepanels, BSA Alloy
Price $75.00
Description

These popular aluminum-alloy sidepanels require some final fitting by you, which can normally be accomplished by hand. They work on Gold Star, B44 and B50-style frames. Sold as a pair.

Motorcycle Model B25, B40, B44, B50, C15
Motorcycle Manufacturer BSA
Spokes, stainless steel, custom-made

US-made Buchanan's stainless steel spokes are painstakingly fabricated one at a time, to provide you the best possible quality. Most vintage spoke kits are built-to-order; expect a lead-time of seven days. Only the most popular options are listed -- please call if you have other requirements.

Spokes, stainless steel, custom-made - $95.00

US-made Buchanan's stainless steel spokes are painstakingly fabricated one at a time, to provide you the best possible quality. Most vintage spoke kits are built-to-order; expect a lead-time of seven days. Only the most popular options are listed -- please call if you have other requirements.

Motorcycle Model #18, #42, #48, #68, 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, 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, Yamaha
   
Spokes, stainless steel, custom-made
Price $95.00
Description

US-made Buchanan's stainless steel spokes are painstakingly fabricated one at a time, to provide you the best possible quality. Most vintage spoke kits are built-to-order; expect a lead-time of seven days. Only the most popular options are listed -- please call if you have other requirements.

Motorcycle Model #18, #42, #48, #68, 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, 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, Yamaha
Sprocket, Front, BSA

Unit BSA sprockets are available for #428 or #520 chain; the Gold Star/A10 is for #520 chain only. We only stock a couple of sizes, but others are available on special order.

Sprocket, Front, BSA - $35.00

Unit BSA sprockets are available for #428 or #520 chain; the Gold Star/A10 is for #520 chain only. We only stock a couple of sizes, but others are available on special order.

Motorcycle Model A10, B25, B40, B44, B50, C15, Gold Star
Motorcycle Manufacturer BSA
   
Sprocket, Front, BSA
Price $35.00
Description

Unit BSA sprockets are available for #428 or #520 chain; the Gold Star/A10 is for #520 chain only. We only stock a couple of sizes, but others are available on special order.

Motorcycle Model A10, B25, B40, B44, B50, C15, Gold Star
Motorcycle Manufacturer BSA
Tank Rubbers, BSA
Your choice of a BSA- or no-logo plug to cover the center-mount hole, the center-mount rubber for B50s, or the anti-roll frame rubbers used on most A and B models. Sold individually.
Tank Rubbers, BSA - $5.00
Your choice of a BSA- or no-logo plug to cover the center-mount hole, the center-mount rubber for B50s, or the anti-roll frame rubbers used on most A and B models. Sold individually.
Motorcycle Model A10, A50, A65, Any, B25, B40, B44, B50, C15, Gold Star, Tiger Cub
Motorcycle Manufacturer Any, BSA
   
Tank Rubbers, BSA
Price $5.00
Description Your choice of a BSA- or no-logo plug to cover the center-mount hole, the center-mount rubber for B50s, or the anti-roll frame rubbers used on most A and B models. Sold individually.
Motorcycle Model A10, A50, A65, Any, B25, B40, B44, B50, C15, Gold Star, Tiger Cub
Motorcycle Manufacturer Any, BSA
Throttle, Domino Trials (Replacement Cap)
Finally! Replace just the missing cap from your Domino throttle, rather than the entire assembly.
Throttle, Domino Trials (Replacement Cap) - $6.00
Finally! Replace just the missing cap from your Domino throttle, rather than the entire assembly.
Motorcycle Model Alpina, Anglian, Any, B25, B40, C15, Cota, HT5, M.A.R., RL250, Scottish, Sherpa T, Tiger Cub, TL125, TL250, TLR200/Reflex, TY175, TY250, TY80
Motorcycle Manufacturer Any, Ariel, BSA, Bultaco, Cotton, Greeves, Honda, Kawasaki, Montesa, Ossa, Penton, Suzuki, Triumph, Yamaha
   
Throttle, Domino Trials (Replacement Cap)
Price $6.00
Description Finally! Replace just the missing cap from your Domino throttle, rather than the entire assembly.
Motorcycle Model Alpina, Anglian, Any, B25, B40, C15, Cota, HT5, M.A.R., RL250, Scottish, Sherpa T, Tiger Cub, TL125, TL250, TLR200/Reflex, TY175, TY250, TY80
Motorcycle Manufacturer Any, Ariel, BSA, Bultaco, Cotton, Greeves, Honda, Kawasaki, Montesa, Ossa, Penton, Suzuki, Triumph, Yamaha
Valve Guides, British

Bronze valve guides sold individually. Available for Triumph 650/750, or Triumph 500. The Cub and BSA unit singles use Triumph 500 guides. The standard outside diameter for all is .501"; oversizes available.

Valve Guides, British - $15.00

Bronze valve guides sold individually. Available for Triumph 650/750, or Triumph 500. The Cub and BSA unit singles use Triumph 500 guides. The standard outside diameter for all is .501"; oversizes available.

Motorcycle Model B25, B40, B44, B50, C15, T100, T120, T140, Tiger Cub, TR6
Motorcycle Manufacturer BSA, Triumph
   
Valve Guides, British
Price $15.00
Description

Bronze valve guides sold individually. Available for Triumph 650/750, or Triumph 500. The Cub and BSA unit singles use Triumph 500 guides. The standard outside diameter for all is .501"; oversizes available.

Motorcycle Model B25, B40, B44, B50, C15, T100, T120, T140, Tiger Cub, TR6
Motorcycle Manufacturer BSA, Triumph