Connecting Links for D.I.D's Standard Series non-sealed chains (includes S, D and HD models) Clip Link (RJ): loose-fit side plate, no chain tool needed 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, 415, 420, 428, 520, 525, 530). 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: KTM 50 SX 2003-2011 50 SX MINI 2010