Hi Macdee, Early frames were prone to cracking where the box section meets the headstock. This was addressed on later frames with a reinforcing plate brazed over the last 50 mm or so of the box, up to the headstock. Around the same time, the swinging arm support plates on the frame were thickened up as they were very thin on the early ones.
The Renold 531 sticker on the swinging arm when the bikes were new related to just the swinging arm, and not the main frame.
It might be best to see a later frame to see what was done.
thanks trickymicky
would you or anyone else have a photo of the mods done to the frame of the tl200
Honda Seeley Tl200
in Honda
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