IRD QB-55 Quad bottom bracket
❌ SOLD OUT
USA orders totaling $100 or more receive free shipping.
This applies to standard shipping in the contiguous 48 states and military APO/FPO addresses only. Oversized items are excluded from the free shipping offer.
All other shipping charges are shown in the cart before checkout. Free shipping does not apply to orders shipping outside the USA.
For complete information, please see our Shipping page.
If you are a local customer choosing the Store Pickup option at checkout,
please wait to receive an email saying your order is ready before coming to pick it up.
Local orders may not be ready the same day they are placed.
Returns for eligible products are accepted within 30 days of the purchase date. Some exclusions apply.
For complete information, please see our Returns page.
This JIS square-taper bottom bracket features Japanese Tange-Seiki sealed cartridge bearings bearings, a hardened cro-mo spindle, an aluminum center sleeve and steel cups.
🔧 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
• 68mm English threaded (1.370" x 24tpi)
• JIS square taper
• spindle lengths: 103, 107, 110mm
• use Park Tool BBT-22 for installation & removal
• weight: 255g (110mm)