KACTUS Ceramic Bottom Bracket — BSA Thread Kit

⭐ Club Tested
Put the BSA24 version on my own road bike a few months back — noticeably smoother than the stock steel bearing it replaced, and still silent.

Ceramic Smoothness, Precision Fit

G3 silicon nitride ceramic bearings · CNC precision machined · Fits BSA 68-73mm shells · Compatible with Shimano, SRAM GXP and DUB cranksets

⚙️ Ceramic Bearings

G3 silicon nitride ceramic beads with a sealing ring — harder and smoother than steel, with less friction and less rolling resistance through every pedal stroke.

🔩 CNC Precision Machining

Heat-treated and CNC machined for a tight, accurate fit that keeps things strong without piling on weight.

🔧 Wide Crankset Compatibility

Available in three axle fits — BSA24 (24/22mm, for Shimano and SRAM GXP cranksets), BSA30 (30mm, for SRAM Rival/Force/Red and Rotor 3D cranksets) and BSA-DUB (28.99mm, for SRAM DUB) — all in a 68-73mm BSA shell.

🛡️ Sealed Against the Elements

Built-in rubber sealing ring keeps dust and grit out of the bearings for a longer service life.

Specifications

Pick the axle size that matches your crankset and enjoy the smoother spin.