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All Categories > Motorcycle Valvetrain Components > BSA® Motorcycle Valvetrain Components > BSA® A65
1971 to 1972
 
 

BSA® A65
1971 to 1972

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104148_BSA_A65_Valve_72_LRB

Black Diamond™ Valves for BSA® A65 1971-1972

 (4)
All KPMI Black Diamond™ stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface build up of .0002”. This “Black Diamond™” process improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Black Diamond™ Valves are light, strong, one piece forgings with profiles that provide excellent flow characteristics.

104135_BSA_A65_Guide02_72_LRB

Valve Guides for BSA® A65 1971-1972

 (3)
We choose to use the copper based C63000 nickel-aluminum bronze as a material to make valve guides because of its ideal characteristics for the application. The 4-5 percent nickel content provides superior resistance to wear, and the approximately 80 percent copper content delivers outstanding heat conductivity. KPMI guide profiles are designed to have minimal effect on the airstream while maintaining critical cross sectional thickness in high temperature areas, promoting high performance and endurance. The top portion of the guides are shortened when cam lift information available at the time of design shows that additional retainer to seal clearance is required.

105020_BSA_A10_ShaftBushing_LRB

Crankshaft Bushings for BSA® A65 1971-1972

 (7)
1010350_BSA_A10_A50_A65_Bushing_LRB

Wrist Pin Bushings for BSA® A65 1971-1972

 (2)

 BSA® A65 1971-1972 


105020_BSA_A10_ShaftBushing_LRB

10-5010
Crankshaft Bushings for BSA® A65 1971-1972
$63.17


104148_BSA_A65_Valve_72_LRB

10-10100
Black Diamond™ Valves for BSA® A65 1971-1972
$31.87

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