What seatpost diameter does a Santa Cruz Tallboy use?
The seatpost fitment standard on a Santa Cruz Tallboy, and how to pick the right part.
This frame's fitment
| Frame | Santa Cruz Tallboy |
|---|---|
| Seatpost diameter | 30.9 mm |
| Diameter | 30.9 mm |
| Typical class | many mountain bikes and full-suspension frames, and one of the two common dropper-post diameters |
The Santa Cruz Tallboy uses a ZS44 upper zero-stack headset, a 30.9 mm dropper seatpost and a 15x110 Boost front thru-axle, with a 12x148 Boost rear.
The Tallboy is 1x with no front derailleur. The bottom bracket is a 73 mm BSA threaded shell, covered on its own page.
The part to buy
Search Amazon for 30.9 mm seatpost for your Santa Cruz Tallboyaffiliate searchFind 30.9 mm seatpost for your Santa Cruz Tallboy on eBayaffiliate
Related fitment pages
30.9 mm seatpost30.9 mmBottom bracket for Santa Cruz Tallboysame frame, BB shellHeadset on a Santa Cruz Tallboysame frame30.9 mm seatpost on a Giant Trance MTBsame standard, another frame
SOURCES: BikeGremlin, Seatpost diameter sizes (standards) · BikeRadar, Bike seatposts explained: diameters, materials, lengths · Park Tool, Standardized Headset Identification System (SHIS) · BikeRadar, Mountain bike axle standards: the complete guide