What headset does a Santa Cruz Megatower use?
The headset fitment standard on a Santa Cruz Megatower, and how to pick the right part.
This frame's fitment
| Frame | Santa Cruz Megatower |
|---|---|
| Headset standard | ZS44 (zero stack, 44 mm) |
| Cup / bearing outside diameter | 44.0 mm cup outside diameter, 43.9 to 43.95 mm head-tube bore |
| Steerer diameter | 28.6 mm (1 1/8 in) |
The Santa Cruz Megatower uses a ZS44 upper zero-stack headset, a 34.9 mm dropper seatpost and a 15x110 Boost front thru-axle, with a 12x148 Boost rear.
Megatower builds are 1x, so there is no front derailleur to size. The bottom bracket is a 73 mm BSA threaded shell, covered on its own page.
The part to buy
Search Amazon for ZS44 for your Santa Cruz Megatoweraffiliate searchFind ZS44 for your Santa Cruz Megatower on eBayaffiliate
Related fitment pages
ZS44zero stack, 44 mmBottom bracket for Santa Cruz Megatowersame frame, BB shellSeatpost diameter on a Santa Cruz Megatowersame frameZS44 on a Specialized Stumpjumper (2019 on carbon)same standard, another frame
SOURCES: White Industries, ZS44/EC44 headset · Park Tool, Standardized Headset Identification System (SHIS) · Velopedia, Boost spacing