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Are 753 and 653 the same? I heard one was stronger and thinner walled but brittle and cracked rather than bent under extreme stress.
Posher in theory, but I like the yellow forks on mine, and the size, this looks like a 56, I'm a 54 /55.
William.-
Fair enough :) From what I understood: 753 is heat treated which made it more difficult to join since the heat during the welding process had a negative impact on the strength of the heat treated tubes. Therefore, builders had to get a licence or kind of approval from reynolds to prove that they could weld the tubes in a way that wouldn't impact their strength. Gazelle was definitely certified so I wouldn't worry. Good 753s are among the most sought after bikes. It was reynolds attempt to make a tube set of comparable strength and weight to titanium tubes, which at the time could only be glued together (that was in the early 70s). More info here: https://raleigh-sb4059.com/2016/08/14/1975-to-1976-reynolds-753-tubing-sbdu-ti-raleigh-road-frames/
Sig_Arlecchino
If you view this as a competition, you should have gotten this 753 TVM for the win: https://www.marktplaats.nl/a/fietsen-en-brommers/fietsen-racefietsen/m1177444521-gazelle-tvm-racefiets-dura-ace.html?c=a2384ef0ece270f44503df9f8598c624&previousPage=lr&pos=8