The 4th edition of the big blue book of bicycle repair is updated with the latest information, procedures and techniques and covers everything from minor adjustments to complete overhauls Park Tool BBB-4 Blue Book Bicycle Repair Volume IV Features the bbb-4 features clear, step by step adjustments, high quality colour photos and useful charts and graphs to thouroughly explain and demonstrate hundreds of repairs written by one of the world's leading authorities on bicycle repair and maintanence, park tools director of education, calvin jones the big blue book is the perfect reference guide for nearly any level mechanic and every bike