Park Tool BBB-4 BIG BLUE BOOK of Bike Repair 4th Edition

PArk tool BBB-4 Big Blue Book of bike Repair

New information and topics included in the BBB 4th edition:

• 12-speed and 1x drivetrains
• Tubeless tires
• Disc brakes
• Electronic shifting
• New wheel building content
• Updated headset and bottom bracket standards
• Updated torque specifications
• Updated troubleshooting tables