BBSwapFinder

index / standards / record

What headset does a Giant Trance MTB use?

The headset fitment standard on a Giant Trance MTB, and how to pick the right part.

DROPS IN
A Giant Trance MTB uses a ZS44 zero-stack upper headset (zero stack, 44 mm).
This frame's fitment
FrameGiant Trance MTB
Headset standardZS44 (zero stack, 44 mm)
Cup / bearing outside diameter44.0 mm cup outside diameter, 43.9 to 43.95 mm head-tube bore
Steerer diameter28.6 mm (1 1/8 in)

The Giant Trance 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.

Giant trail bikes commonly use 30.9 mm droppers; confirm the model year. The bottom bracket is a Press-Fit 92 (BB92) shell, covered on its own page.

The part to buy
Search Amazon for ZS44 for your Giant Trance MTBaffiliate searchFind ZS44 for your Giant Trance MTB on eBayaffiliate
Related fitment pages
ZS44zero stack, 44 mmBottom bracket for Giant Trance MTBsame frame, BB shellSeatpost diameter on a Giant Trance MTBsame 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) · BikeRadar, Mountain bike axle standards: the complete guide