Cranking up an old problem
n ‘From the Archive’ (, 23 April) you wonder if “broken cranks and chainrings were a genuine problem 50 years ago”. Certainly ran an article on the subject. One tip was to fit thin washers to spread the load when screwing in pedals, another was to rub the eye area with a cloth that had been dipped in methylated spirits and then inspect it for minute stress cracks.
