hi mate ive just had alook at my 198A should be the same as a 199A the spacer on the brake side is 13mm and the other side is 23mm but the one on the brake side that gose behind the brake plate has a top hat im sure some 1 on hear should have a spare 1 ive just looked for you in my box but sorry dont have them is it both sides thats missing? only spacer i have is the 1 that gose in the L/H fork leg where the pinch bolts are hope this helps cheers bondy.