BSA


BSA made their mark in the English observed trials world with the Gold Star, and continued to have success with the unit-construction C15 and B40. These bikes, along with the two-stroke Bantam, are still favorites with riders and spectators alike.

For general parts, please see the product index on the left.

Parts available for BSA Trials
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Shift Rubber, Pre-Unit BSA

Shift rubber for pre-unit BSA singles and twins, OE part #29-3250.

Shift Rubber, Pre-Unit BSA - $3.75

Shift rubber for pre-unit BSA singles and twins, OE part #29-3250.

Motorcycle Model A10, Gold Star
Motorcycle Manufacturer BSA
   
Shift Rubber, Pre-Unit BSA
Price $3.75
Description

Shift rubber for pre-unit BSA singles and twins, OE part #29-3250.

Motorcycle Model A10, Gold Star
Motorcycle Manufacturer BSA
Shock Spring Shroud, Black
One pair of shock-spring shrouds, as typically found as the upper pair on fully-shrouded Girling shocks. The i.d. is 2.25"and the overall length is 5.0".
Shock Spring Shroud, Black - $16.00
One pair of shock-spring shrouds, as typically found as the upper pair on fully-shrouded Girling shocks. The i.d. is 2.25"and the overall length is 5.0".
Motorcycle Model Any
Motorcycle Manufacturer AJS, Any, Ariel, BSA, Husqvarna, Matchless, Triumph
   
Shock Spring Shroud, Black
Price $16.00
Description One pair of shock-spring shrouds, as typically found as the upper pair on fully-shrouded Girling shocks. The i.d. is 2.25"and the overall length is 5.0".
Motorcycle Model Any
Motorcycle Manufacturer AJS, Any, Ariel, BSA, Husqvarna, Matchless, Triumph
Shock Spring Shroud, Chrome
One pair of shock-spring shrouds, as typically found on Girling shocks. This pair of chrome shrouds were used on top of half-shrouded springs, and on the bottom of full-shrouded springs. The i.d. is 2.08" and the overall length is 4.5".
Shock Spring Shroud, Chrome - $24.00
One pair of shock-spring shrouds, as typically found on Girling shocks. This pair of chrome shrouds were used on top of half-shrouded springs, and on the bottom of full-shrouded springs. The i.d. is 2.08" and the overall length is 4.5".
Motorcycle Model Anglian, Any, B44, G85, Griffon, Hawkstone/MCS, HT5, MkIII, MkIV, Scottish, Stormer, T100, T120, Tiger Cub, TR6
Motorcycle Manufacturer AJS, Ariel, BSA, Cotton, Greeves, Husqvarna, Maico, Matchless, Rickman, Triumph
   
Shock Spring Shroud, Chrome
Price $24.00
Description One pair of shock-spring shrouds, as typically found on Girling shocks. This pair of chrome shrouds were used on top of half-shrouded springs, and on the bottom of full-shrouded springs. The i.d. is 2.08" and the overall length is 4.5".
Motorcycle Model Anglian, Any, B44, G85, Griffon, Hawkstone/MCS, HT5, MkIII, MkIV, Scottish, Stormer, T100, T120, Tiger Cub, TR6
Motorcycle Manufacturer AJS, Ariel, BSA, Cotton, Greeves, Husqvarna, Maico, Matchless, Rickman, Triumph
Shocks, NJB Trial Expert

Our favorite shock for classic trials, the NJB Trial Expert features light, responsive damping, a strong 12mm shaft and single- or dual-rate springs. They suit the trials rider who wants the best. We assemble them to order, accounting for rider weight, riding style and machine modifications. Available in lengths of 13.0", 13.4", 14.0"and 15.35". Please ring us with your details to order. Priced as a pair, includes bushes and springs.

Shocks, NJB Trial Expert - $245.00

Our favorite shock for classic trials, the NJB Trial Expert features light, responsive damping, a strong 12mm shaft and single- or dual-rate springs. They suit the trials rider who wants the best. We assemble them to order, accounting for rider weight, riding style and machine modifications. Available in lengths of 13.0", 13.4", 14.0"and 15.35". Please ring us with your details to order. Priced as a pair, includes bushes and springs.

Motorcycle Model Alpina, Anglian, Any, B25, B40, C15, Cota, Gold Star, HT5, M.A.R., RL250, Scottish, Sherpa T, Tiger Cub, TL125, TL250, TLR200/Reflex, TY175, TY250
Motorcycle Manufacturer Any, Ariel, BSA, Bultaco, Cotton, Greeves, Honda, Kawasaki, Matchless, Montesa, Ossa, Penton, Suzuki, Triumph, Yamaha
   
Shocks, NJB Trial Expert
Price $245.00
Description

Our favorite shock for classic trials, the NJB Trial Expert features light, responsive damping, a strong 12mm shaft and single- or dual-rate springs. They suit the trials rider who wants the best. We assemble them to order, accounting for rider weight, riding style and machine modifications. Available in lengths of 13.0", 13.4", 14.0"and 15.35". Please ring us with your details to order. Priced as a pair, includes bushes and springs.

Motorcycle Model Alpina, Anglian, Any, B25, B40, C15, Cota, Gold Star, HT5, M.A.R., RL250, Scottish, Sherpa T, Tiger Cub, TL125, TL250, TLR200/Reflex, TY175, TY250
Motorcycle Manufacturer Any, Ariel, BSA, Bultaco, Cotton, Greeves, Honda, Kawasaki, Matchless, Montesa, Ossa, Penton, Suzuki, Triumph, Yamaha
Shocks, NJB Trial Ultimate
NJB Trial Ultimates pack a list of features like nothing else on the market. Speed-sensitive compression damping and light rebound provide the ultimate ride for classic trials competition. Screw-type spring preload is quick and simple to use. A unique, two-piece body design allows the shock length to be adjusted from 13.4-15.1 inches (eye-to-eye), even while on the bike. This allows for fine-tuning the steering geometry or use on multiple machines. Can be mounted body-up or body-down. Spanners and a"fit kit"are included for fitment using 8, 10 or 12mm bolts. Your choice of 45lb or 60lb springs. Sold as a pair.
Shocks, NJB Trial Ultimate - $285.00
NJB Trial Ultimates pack a list of features like nothing else on the market. Speed-sensitive compression damping and light rebound provide the ultimate ride for classic trials competition. Screw-type spring preload is quick and simple to use. A unique, two-piece body design allows the shock length to be adjusted from 13.4-15.1 inches (eye-to-eye), even while on the bike. This allows for fine-tuning the steering geometry or use on multiple machines. Can be mounted body-up or body-down. Spanners and a"fit kit"are included for fitment using 8, 10 or 12mm bolts. Your choice of 45lb or 60lb springs. Sold as a pair.
Motorcycle Model Alpina, Anglian, Any, B25, B40, C15, Cota, Gold Star, HT5, M.A.R., RL250, Scottish, Sherpa T, Tiger Cub, TL125, TL250, TLR200/Reflex, TY175, TY250
Motorcycle Manufacturer Any, Ariel, BSA, Bultaco, Cotton, Greeves, Honda, Kawasaki, Matchless, Montesa, Ossa, Penton, Suzuki, Triumph, Yamaha
   
Shocks, NJB Trial Ultimate
Price $285.00
Description NJB Trial Ultimates pack a list of features like nothing else on the market. Speed-sensitive compression damping and light rebound provide the ultimate ride for classic trials competition. Screw-type spring preload is quick and simple to use. A unique, two-piece body design allows the shock length to be adjusted from 13.4-15.1 inches (eye-to-eye), even while on the bike. This allows for fine-tuning the steering geometry or use on multiple machines. Can be mounted body-up or body-down. Spanners and a"fit kit"are included for fitment using 8, 10 or 12mm bolts. Your choice of 45lb or 60lb springs. Sold as a pair.
Motorcycle Model Alpina, Anglian, Any, B25, B40, C15, Cota, Gold Star, HT5, M.A.R., RL250, Scottish, Sherpa T, Tiger Cub, TL125, TL250, TLR200/Reflex, TY175, TY250
Motorcycle Manufacturer Any, Ariel, BSA, Bultaco, Cotton, Greeves, Honda, Kawasaki, Matchless, Montesa, Ossa, Penton, Suzuki, Triumph, Yamaha
Sidestand Kit, Universal Weld-On
This sidestand is designed for the right-hand side of the swingarm. It is supplied as a kit without the base foot welded on, and with the leg longer than normal. This allows you to cut it to your required length, then weld on the foot, pivot and mounting bracket at the right angle/place for your bike. A slick solution for a normally-complex task.
Sidestand Kit, Universal Weld-On - $130.00
This sidestand is designed for the right-hand side of the swingarm. It is supplied as a kit without the base foot welded on, and with the leg longer than normal. This allows you to cut it to your required length, then weld on the foot, pivot and mounting bracket at the right angle/place for your bike. A slick solution for a normally-complex task.
Motorcycle Model Any
Motorcycle Manufacturer AJS, Any, Ariel, BSA, Matchless, Triumph
   
Sidestand Kit, Universal Weld-On
Price $130.00
Description This sidestand is designed for the right-hand side of the swingarm. It is supplied as a kit without the base foot welded on, and with the leg longer than normal. This allows you to cut it to your required length, then weld on the foot, pivot and mounting bracket at the right angle/place for your bike. A slick solution for a normally-complex task.
Motorcycle Model Any
Motorcycle Manufacturer AJS, Any, Ariel, BSA, Matchless, Triumph
Spoke Nipples, British
Old-world-style nickel-plated brass nipples are a great choice to avoid galling or corrosion. The fit all spokes using a British-based thread system, including Buchanan's (not produced nor endorsed by Buchanan's Spoke & Rim). Sold individually in five sizes.
Spoke Nipples, British - $0.80
Old-world-style nickel-plated brass nipples are a great choice to avoid galling or corrosion. The fit all spokes using a British-based thread system, including Buchanan's (not produced nor endorsed by Buchanan's Spoke & Rim). Sold individually in five sizes.
Motorcycle Model
Motorcycle Manufacturer Ariel, BSA, Cotton, Greeves, Matchless, Rickman, Triumph
   
Spoke Nipples, British
Price $0.80
Description Old-world-style nickel-plated brass nipples are a great choice to avoid galling or corrosion. The fit all spokes using a British-based thread system, including Buchanan's (not produced nor endorsed by Buchanan's Spoke & Rim). Sold individually in five sizes.
Motorcycle Model
Motorcycle Manufacturer Ariel, BSA, Cotton, Greeves, Matchless, Rickman, Triumph
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, Crankshaft, BSA Trials

18-tooth crankshaft sprocket for BSA unit singles provides ultra-low gear ratios for trials use, while keeping your final-drive ratios within reason. Kickstarting is also much easier. Fits all unit singles (C15, B40, B44, B25 and B50). Requires 68-pitch primary chain, available separately.

Sprocket, Crankshaft, BSA Trials - $40.00

18-tooth crankshaft sprocket for BSA unit singles provides ultra-low gear ratios for trials use, while keeping your final-drive ratios within reason. Kickstarting is also much easier. Fits all unit singles (C15, B40, B44, B25 and B50). Requires 68-pitch primary chain, available separately.

Motorcycle Model B25, B40, B44, B50, C15
Motorcycle Manufacturer BSA
   
Sprocket, Crankshaft, BSA Trials
Price $40.00
Description

18-tooth crankshaft sprocket for BSA unit singles provides ultra-low gear ratios for trials use, while keeping your final-drive ratios within reason. Kickstarting is also much easier. Fits all unit singles (C15, B40, B44, B25 and B50). Requires 68-pitch primary chain, available separately.

Motorcycle Model B25, B40, B44, B50, C15
Motorcycle Manufacturer BSA
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