A single replacement headset bearing sized for a 49.5mm bore (the size used on Specialized Crux and Diverge STR/Invert-fit 40-Series headsets), zinc plated for corrosion resistance.

Compatibility & fit

49.5mm bearing, 36°/45° contact angle, zinc-plated, fits 36° races only. This 49.5mm size is specific to Crux/Invert-fit headsets and is not interchangeable with the standard S.H.I.S. bearing sizes (41mm for IS41/ZS44, 42mm for IS42, 52mm for IS52/ZS56/ZS62). Match the bearing to your existing headset's own spec before ordering, not just the steerer size.

Cane Creek covers this spare part under its Small Parts warranty: 1 year against defects in materials and workmanship. For warranty support, return the product to Tune Cycles and we'll manage the claim with Cane Creek's Australian distributor. This is in addition to your rights under the Australian Consumer Law, so keep your proof of purchase.
  • 49.5mm bearing for Crux/Invert-fit 40-Series headsets
  • 36°/45° contact angle, 36° races only
  • Zinc plated
  • Sold as a single bearing
FitmentCrux/Invert-fit 40-Series headset
Bearing diameter49.5mm
Contact angle36°/45° (36° races only)
FinishZinc plated
QuantitySingle bearing
SKU DTW-CKS-BAA2520
Barcode # 840226074337
Brand Cane Creek
Shipping Weight 0.0500kg