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IRD QB-75 Bottom Bracket

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Product information "IRD QB-75 Bottom Bracket"

IRD’s top level JIS square taper bottom bracket

  • High polish finish
  • Japanese sealed cartridge bearings
  • POM industrial seals
  • CNC-machined A6061 aluminum cups
  • SCM415 chromoly spindle
  • Made in Japan

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IRD bb parts

IRD Bottom Bracket 73mm Converter Washer (Set)

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IRD Bottom Bracket 73mm Converter Washer (Set)

Spacer to allow your 68mm shell bottom bracket and bottom bracket shell to fit cranks designed for 73mm shells.

Regular price: €4.95
IRD Bottom Bracket Conversion Cups

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IRD Bottom Bracket Conversion Cups
Bottom Bracket Threading: English (BSA)

Conversion cups for IRD Quad or Defiant bottom brackets. Fits IRD and Velo Orange axles. Comes in 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.) Material: Aluminum Note : Some mountain bikes have "oversized" bottom brackets shell width of 73 mm, rather than the standard 68 mm.

Regular price: €29.95
IRD QB-55 Bottom Bracket

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IRD QB-55 Bottom Bracket

IRD’s top level JIS square taper bottom bracket High polish finish Japanese sealed cartridge bearings POM industrial seals Steel cups SCM415 chromoly spindle Made in Japan

Regular price: €49.95
IRD QB-75 Bottom Bracket

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IRD QB-75 Bottom Bracket

IRD’s top level JIS square taper bottom bracket High polish finish Japanese sealed cartridge bearings POM industrial seals CNC-machined A6061 aluminum cups SCM415 chromoly spindle Made in Japan

Regular price: €74.95
IRD QB-95 Bottom Bracket

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IRD QB-95 Bottom Bracket

IRD’s top level JIS square taper bottom bracket High polish finish Japanese sealed cartridge bearings POM industrial seals CNC-machined A6061 aluminum cups SCM415 chromoly spindle Ten year warranty Made in Japan

Regular price: €99.95