That'll be 753 pro probably, very clever to have a small triangle for super stiffnessRaleigh built one of the first production Lo-Pro Funny bikes way back in 1972 with the Raleigh Chopper Sprint, they just didn't know it at the time. Moving forward ten years they built a very special time trial machine for Bert Oosterbosch
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Raleigh did build a large triangle frame for Bert but he never used it, he preferred the first frame so maybe it was stiffer
Miguel Indurain used small triangle frames on his TT bikes in the tour to great effect. Pretty much started the trend for smaller and smaller main and rear trianglesRaleigh did build a large triangle frame for Bert but he never used it, he preferred the first frame so maybe it was stiffer
