IRD Defiant bottom bracket
Interloc Racing Design's premium JIS square-taper bottom bracket features Japanese sealed-cartridge bearings, a hardened SCM415 cro-mo spindle, 6061 aluminum cups, a beautiful polished finish and whopping ten-year warranty.
🔧 Pro tip: The crankset being used determines spindle length, not the frame. Please check what length the manufacturer recommends for your crankset or measure your existing BB's spindle.
• made in Japan
• polyformaldehyde industrial seals
• 68mm English threaded (1.370" x 24tpi)
• JIS square taper
• spindle lengths: 103, 107, 110, 113mm
• requires Park Tool BBT-22 for installation & removal
• weight: 220g (110mm)