RKexcel - Chain - SV530UWR VintageUWR is specific for vintage motorcycles requiring narrow clearance chains that came with 530 non sealed chains. SV530UWR has a max width of 22. 70mm making UWR ideal for British bikes such as Norton, Triumph, also Honda 1970s CB750, CL450 etc. SV530UWR features bright silver inner and outer side plates along with silver pins and rollers to compliment that vintage look. UWR Sealed Vintage chains are lighter than most other sealed 530 chains and the