Connecting Links for D.I.D's V Series chains (includes 420V, 428V, 520VO and 630VS chains) Clip Link (RJ): O-Ring seals, loose-fit side plate, no chain tool needed Clip Link (FJ): O-Ring seals, press-fit side plate, chain tool needed to install/remove Rivet Link (ZJ): O-Ring seals, press-fit side plate, chain tool needed to install/remove Please note: Connecting links are not interchangeable between old and new chain models. Connecting link pitch must be the same as chain it is being applied to (eg, 420, 428, 520, 630). Please contact us if you are unsure which link to use for your chain. We recommend all motorcycle parts are fitted and tested by qualified professionals. Fits: Honda CBX1000 1978-1979