A complete bearing kit for BB30 bottom bracket shells, available in Steel (Mod.SRC-BB-BS30) or Ceramic (Mod.SRC-BB-BC30). Both kits give a BB30 frame a fresh set of bearings sized and sealed to CEMA's own standard — choose Steel for a durable, cost-effective rebuild, or Ceramic for lower friction and a longer service interval. Select your material below.
Manufacturing defects are covered under CEMA's warranty terms. Return the kit to Tune Cycles and we'll manage the claim on your behalf. This is in addition to your rights under the Australian Consumer Law.
  • Fits BB30 bottom bracket shells
  • Two material options: Steel (SRC-BB-BS30) or Ceramic (SRC-BB-BC30)
  • Complete kit — everything needed to rebuild a BB30 bottom bracket
  • CEMA construction
FitsBB30 bottom bracket shells
Steel modelSRC-BB-BS30
Ceramic modelSRC-BB-BC30
SKU CEMA-BB30-KIT