AEYINO BSA Square Taper Bottom Bracket, 68 mm

AEYINO BSA Square Taper Bottom Bracket is a threaded replacement component with sealed bearings and a square-taper interface. The listing identifies the selected size as BB68-113MM, so confirm both the frame shell and axle length against your existing part before ordering.

At a glance

The listing describes a BSA-threaded, square-taper bottom bracket with sealed bearings.
The selected variant is labelled BB68-113MM, but sizing should be matched to the original part rather than chosen by frame shell width alone.
Two waterproof and dustproof hex screws are claimed to be included.

Price

£10.19Save 15%

Reference price: ~~£11.99~~

Price checked: 13 Nov 2026

View offer

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Pros and cons

Pros

Sealed bearings are specified, with the listing claiming they help keep out water and dust.
Square-taper format and the stated BSA compatibility may suit a like-for-like replacement when the original dimensions match.

Technical specifications

4 specifications

Identity
Brand	AEYINO
Product type	BSA Square Taper Bike Bottom Bracket - 68mm
Listed size variant	BB68-113MM

Dimensions and weight
Package dimensions and weight	15.6 x 4.9 x 4.7 cm; 330 g

What to know before buying

Listing details to confirm

Sizing details are inconsistent: the title states 68 mm, the colour/variant label reads BB68-113MM, and the feature text says compatible with 68/120mm BSA bike thread bottom. The listing does not clearly explain the 120mm figure, so confirm shell width and spindle length against the existing bracket before purchase. It also recommends using BB tools for installation. Manufacturer claims about durability, noise and reduced energy loss are not independently established.

Who is it for?

A good fit for

Riders replacing an existing BSA-threaded square-taper bottom bracket who can verify the required shell and axle dimensions.
Home mechanics who already have suitable bottom-bracket tools or can arrange installation.

Less suited to

Buyers who need a different bottom-bracket interface or cannot confirm compatibility with their frame and crankset.

AEYINO BSA Square Taper Bottom Bracket, 68 mm · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 58 ratings

5 stars81%81%
4 stars9%9%
3 stars0%0%
2 stars3%3%
1 star7%7%

Customer feedback describes the bottom bracket as solid and working well, with smooth running mentioned as a benefit. That impression is relevant to routine replacement use, but does not confirm compatibility or independently verify the listing's bearing and durability claims. Aggregate ratings are mostly five-star, alongside a smaller low-star share, and do not establish why customers rated it as they did.

Positive themes

Customers describe the product as solid and functional.
Smooth operation is mentioned positively.

Frequently asked questions

What size is this bottom bracket?

The title specifies 68 mm and the variant label is BB68-113MM. The listing also mentions 68/120mm BSA compatibility without clarifying that figure, so check your original shell and axle measurements before ordering.

Does it use sealed bearings?

Yes. The listing describes sealed bearings and claims they support smooth operation while helping protect against water and dust.

Are installation tools included?

The listing recommends using BB tools for installation but does not specify that tools are included.

What components are stated to come with it?

The feature text claims that two waterproof and dustproof hex screws are supplied. Check the selected listing if package contents are important.