IRD Bottom Bracket Conversion Cups Pair
• SIGN IN to your Account to Place Order or View Wholesale Pricing
• Out-of-stock items cannot be Added to Cart
Call or e-mail regarding re-stocks
• View our Shipping Terms
Conversion cups for IRD Quad or Defiant bottom brackets.
French, Swiss, Italian, or 73mm OS* English BB threading. (If you require a 68mm English cup set, order the 73mm and pry out the spacers inside the cups.)
*Some mountain bikes have "oversized" bottom brackets shell width of 73 mm, rather than the standard 68 mm.