C630 bearing bronze. Standard size: .5620″ O.D. (14.27mm); .2750″ I.D. (6.99mm); 2.02″ OAL (51.31mm). C630 bearing bronze is a tough nickel-aluminum-bronze alloy typically used in High Performance and racing applications where rapid heat transfer from the valve to head is important.
KPMI, intake valve guide. C630 bronze. STD
€41.30
05-17 Twin Cam; 04-21 XL Sportster; 08-12 XR1200; 03-10 Buell XB (NU)