BSA A50 B25 Standard Sized Exhaust Valve

Hard-to-find BSA vintage motorcycle valves

• English made to original factory specs
• High quality, perfect fit
• Fits 1967-72 B-25, 1966-70 A50

Oversized Valves are Available from MAP

• Our oversized valves (OS) are flow tested for maximum performance.
• Oversized valves can also be used to rejuvenate sunken valve seats while correcting valve geometry.
• The OS valve features relocated keeper locations to accommodate hi-lift racing cams and springs. This saves additional machining expense.

NOTE: Always be sure to check piston clearance before installing oversize valves