'Disc brakes too small'
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MOST of the development pro lems encountered by di: brakes in a commercial vehi4 application are caused by ti inadequate size of the brake according to B. Ingram of Luc Girling.
Speaking at a conference the braking of road vehicIE sponsored by the Automob Division of the Institution Mechanical Engineers, Mr I gram said that the low-prof tubeless tyre extends the di brakes' ability to provide great safety by increasing the annul space in which suitably sizi discs and calipers can installed even for 13-tonne a les.
Although the advent of tub less tyres has generally result in a reduction in brake diamet of five to eight per cent becau of the need for the dropped-wi rim, it has been possible f drum brakes to make up the de cit by increasing the drum widt The disc brake suffere however, because this restr tion in diameter reduced ti braking surface area by 10 to per cent.