Giant Bike Bottom Bracket Guide
Most Giant road and gravel bikes, including the TCR, Trinity, Propel Advanced, Defy Advanced, Contend, Revolt and TCX, use the BB86 press-fit bottom bracket standard.
BB86 features a 41 mm frame shell inner diameter and an 86.5 mm shell width.
Giant mountain bikes (MTB), on the other hand, commonly use the BB92 press-fit bottom bracket standard, featuring a 41 mm inner diameter and a 92 mm shell width.
The correct replacement bottom bracket depends on both your frame's bottom bracket standard and your crankset spindle diameter.

Giant Road Bikes
Giant TCR (Advanced/Pro/SL) (2020–2026)
Giant Trinity (TT) (2024–2025)
Giant Propel Advanced / Pro / SL (Gen 2017) (2015–2017)
Giant Propel Advanced (Gen 2023) (2023–2026)
Giant Defy Advanced / Pro / SL (2015–2018)
Giant Contend SL / SL Disc (Gen 2020) (2020–2025)
Giant Contend SL / SL Disc (Gen 2015) (2015–2019)
Giant Contend SL (Gen 2026) (2026)
Depending on the crankset you use, the following bottom bracket options are available:
Shimano 24mm crankset (105, Ultegra, Dura-Ace)
SRAM GXP 22-24mm crankset BB86 bottom bracket for SRAM GXP
Campagnolo 25mm crankset BB86 bottom bracket for Campagnolo
SRAM DUB 29mm crankset
30mm crankset
Giant Gravel Bikes
Giant Revolt Advanced (carbon) (2022–2026)
Giant Revolt X Advanced Pro (2023–2026)
Giant TCX SLR (2015–2021)
Depending on the crankset you use, the following bottom bracket options are available:
Shimano 24mm crankset (105, Ultegra, Dura-Ace)
SRAM GXP 22-24mm crankset
Campagnolo 25mm crankset
SRAM DUB 29mm crankset
30mm crankset
Giant MTB Bikes
Giant Anthem Advanced (Gen 2015) (2015–2016)
Giant Anthem Advanced (Gen 2017) (2017–2018)
Giant Anthem Advanced (Gen 2018) (2018–2021)
Giant Reign / Reign SX (Gen 2020) (2020–2022)
Giant Reign Advanced (Gen 2015) (2015–2017)
Giant Reign Advanced (Gen 2018) (2018–2019)
Giant Trance Advanced (Gen 2021)
Giant Trance Advanced (Gen 2015) (2015–2016)
Giant Trance Advanced (Gen 2017) (2017–2021)
Giant Trance Advanced (Gen 2019) (2019–2021)
Giant XTC Advanced / Advanced SL 29 (Gen 2015) (2015–2019)
Giant XTC Advanced / Advanced SL 29 (Gen 2020) (2020–2026)
Depending on the crankset you use, the following bottom bracket options are available:
Shimano 24mm crankset (105, Ultegra, Dura-Ace)
SRAM GXP 22-24mm crankset
SRAM DUB 29mm crankset
30mm crankset
Need Help Finding the Correct Giant Bottom Bracket?
If you are unsure which bottom bracket is compatible with your Giant bicycle, please contact our team at info@bikebearingstore.com.au. We are happy to help you find the right fit.




