Cane Creek 40 Series Headset Bottom Assemblies

Sold in straight and tapered assemblies or tops & bottoms. Cane Creek’s 40-Series offers the largest fitment range of any headset line on the market. Precision engineered by Cane Creek in Fletcher, NC.

NEW! The new ZN40 bearings are a zinc-coated, machined steel cartridge bearing with hardened steel balls. The new material is much more corrosion-resistant, which vastly increases the longevity of the 40 series headsets.

SPECS

Cups and Covers	6061 T-6 Aluminum Internally relieved to reduce weight
Covers	Short aluminum covers offered on IS and ZS models
Crown Race	Durable steel crown races
Bearings	Dependable zinc coated, sealed bearings EC30 will take a 38mm bearing EC34 will take a 41mm bearing ZS44 will take a 41mm bearing ZS49 will take a 41mm bearing EC44/40 will take a 52mm bearing EC44/33 will take a 47mm bearing EC49 will take a 52mm bearing ZS56 will take a 52mm bearing ZS62 will take a 52mm bearing IS41 will take a 41mm bearing IS42 will take a 42mm bearing IS52 will take a 52mm bearing All complete Cane Creek headset assemblies (top or bottom) will use a 36x45 degree contact angle bearing, with the exception of our IS47/33 and EC44/33 headset assemblies. IS47/33 and EC44/33 will use a 45x45 degree contact angle bearing.
Interlok®	Interlok® spacer compatible
Clip Seal	Innovative Clip-Seal completely seals the top assembly and captures the compression ring to reduce the number of loose parts
Face Seal	High-quality, low friction face seals on the crown races
Stack Heights	External Cup (EC) — 16mm top, 12mm bottom ZeroStack (ZS) — 8mm or 15mm top, 4mm bottom Integrated (IS) — 9mm or 15mm top, 1mm bottom

Find replacement 41mm bearings HERE

Find replacement 52mm bearings HERE

INFO

Sizes available for 1-1/8" Straight steerer include:

• IS52
• ZS44
• ZS49
• ZS56
• EC44
• EC49

Sizes available for Tapered 1-1/2" steerer include:

• IS52
• ZS55
• ZS56
• ZS62
• EC44
• EC49