Without it, the tube will push through and blow out. Bottom bracket: The part of the frame where the crankset is installed. Also the axle, cups, and bearings of the crankset. BPM: Abbreviation for beats per minute, in reference to heart rate. Break, breakaway:... Bicycling Magazine's Complete Book of Road Cycling Skills: Your Guide to ... - Pagina 212 geredigeerd door - 1998 - 240 pagina’s Gedeeltelijke weergave -
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