Hi JD For what its worth.... these are the numbers that come out of the Steinway Service manual. I believe I have copied them correctly. I'll see the piano tommorrow.. but I already know the diameters on this non original set of bass strings are completely different then this. Plus the fact that whomever made them used hex core wire. Cheers RicB Steinway L Length Core Ø Wrap Ø Total Ø 1379 1,6 2,15 5,9 1364 1,5 2,1 5,7 1351 1,4 2 5,4 1339 1,3 1,9 5,1 1323 1,3 1,85 5 1311 1,225 1,85 4,925 1298 1,225 1,7 4,625 1285 1,225 1,6 4,425 1273 1,175 1,6 4,375 1259 1,125 1,6 4,325 1241 1,025 1,3 3,625 1221 1,025 1,2 3,425 1200 1,025 1,15 3,325 1179 1,025 1,1 3,225 1158 1,025 1,050 3,125 1139 0,975 1,0 2,975 1119 0,975 0,95 2,875 1099 0,975 0,90 2,775 1075 0,975 0,875 2,725 1050 0,975 0,85 2,675 1032 0,95 0,80 2,55 1001 0,95 0,75 2,45 988 0,95 0,70 2,35 963 0,95 0,65 2,25 934 0,95 0,60 2,15 908 0,95 0,55 2,05
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