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Parts ranked by shell width

95.5 mm

Trek BB95 press fit (MTB) bottom bracket has the highest shell width in the dataset, at 95.5 mm.

Which part has the highest shell width?

Trek BB95 press fit (MTB) bottom bracket, at 95.5 mm, tops the 16 parts we hold a published shell width for. The full ranking is below.

#	Parts	Shell width
1	Trek BB95 press fit (MTB) bottom bracket	95.5 mm
2	BB92 press fit (MTB) bottom bracket	91.5 mm and 92 mm
3	BB392EVO press fit (MTB) bottom bracket	91.5 mm
4	Trek BB90 press fit (road) bottom bracket	90.5 mm
5	BB86 press fit (road) bottom bracket	86.5 mm
6	BB386EVO press fit bottom bracket	86.5 mm
7	T47 internal (T47-85.5 / T47-86 / T47-92) bottom bracket	85.5 mm, 86 mm and 92 mm
8	BBRight press fit bottom bracket	79 mm (asymmetric, offset 11 mm to the non-drive side)
9	BB30A press fit (Cannondale) bottom bracket	73 mm (asymmetric, 5 mm wider on the non-drive side)
10	PF30A press fit (Cannondale Ai) bottom bracket	73 mm (asymmetric, for Cannondale Ai offset rear)
11	Italian threaded bottom bracket	70 mm
12	BSA / English threaded bottom bracket	68 mm (road), 73 mm (MTB), 83 mm and 100 mm (fat / DH)
13	T47 external (T47-68 / T47-73) bottom bracket	68 mm and 73 mm
14	PF30 press fit bottom bracket	68 mm (road) and 73 mm (MTB)
15	BB30 press fit bottom bracket	68 mm (road) and 73 mm (MTB)
16	Specialized OSBB bottom bracket	68 mm (road) and 73 mm (MTB)

Data as of 2026-09-06.