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Cheers: one of mine (both 60cm frame) is SPX and the other is either SL or SP; sticker doesn't say but its blue rather than red. Feels lighter than the SPX one however so leaning towards SL. Catalogues on Bulgier.net state they move from SL to SP for 'frames larger than 60cm' although don't know if this includes the 60cm models also... would be nice if it was SL as at 11 stone don't really think I need the stronger tubes! Anyone know how to tell the difference?
lmamammal
Sintex were higher end models, usually made from Columbus SLX tubing.