BILLET ALUMINUM ROUND TOP RISERS | Big Twin | Dyna | FX | FXR | Servi-Car | Softail | Sportster | Touring | Trike RS A modest lift in torque

A modest lift in torque and throttle response for stock engines

and sensibly engineered

Stock single phase alternators on FI models generate a harsh output straining the charging system and create excess drag at the crank

Light remains bright regardless of battery conditions

Drilled rotors provide better braking in wet weather

BILLET ALUMINUM ROUND TOP RISERS | Big Twin | Dyna | FX | FXR | Servi-Car | Softail | Sportster | Touring | Trike RS A modest lift in torqueChrome 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.