BILLET ALUMINUM ROUND TOP RISERS | Big Twin | Dyna | FX | FXR | Servi-Car | Softail | Sportster | Touring | Trike RSChrome Tapered style billet aluminum risers are a timeless design. They come complete with top covers and allen head top cover screws. They are sold in pairs, 2" (5. 1 cm) high and threaded for use with 1 2 20 UNF riser bolts ZPN233382.
Light remains bright regardless of battery conditions
Fits rear brake drum on 1937-1957 Big Twin models (OEM 41420-30)
1965-1969 (open primary) and 1970-1986 without any modification
Stock single phase alternators on FI models generate a harsh output straining the charging system and create excess drag at the crank
8 5/8" Drilled
Fits 1976-1986 FX with 35mm fork tubes
Includes backing plate
Drilled rotors provide better braking in wet weather
and sensibly engineered
A modest lift in torque and throttle response for stock engines
These mirrors are EU approved and carry a distinct E approval mark
allowing the use of Twin Cam pushrod covers