# 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.

- [Original product page](https://bargainpostbox.co.uk/product/aeyino-bsa-square-taper-bottom-bracket-68mm)
- [View offer](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: AEYINO
- Category: Sports & Outdoors > Cycling > Bicycle Parts & Accessories
- Price: 10.19 GBP
- Previous price: 11.99 GBP
- Discount: 15%
- Price checked: 2026-11-13T06:03:21.612Z
- Rating: 4.5 / 5
- Reviews: 58

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## 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.

## 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.

## 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

## Before you buy

- 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.

## 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.

## Customer feedback

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.
- Positive themes: 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.

## Alternative options

- [Bicycle Bottom Bracket Square Taper Bike Bottom Bracket for Mountain/MTB/Road/Fat Bike, Optional Square BSA 68mm x 110.5/113/118/120/122.5mm](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)
- [SHIMANO BB-UN300 Vierkant-Innenlager // BSA 73x123 mm \(Alivio\)](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)
- [SHIMANO - Bottom Bracket BSA 122.5/68mm-BB-UN300 Square Taper \(LL123\)](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)
- [ouhos Square Taper BB 68mm BSA Threaded Sealed Bearing 113/118/122.5mm Spindle for MTB Bikes](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)
- [equlup 5 Size Square Taper Bottom Bracket, Bike Bottom Bracket Square Hole Crank Axis 68x118/120/122.5/124.5/127.5mm Sealed Bearings Bike Parts for Square Tapered Spindle Crank](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)
- [SHIMANO BB-UN300 Square Bottom Bracket // BSA 68 x 115 mm \(Alivio\)](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)
- [Square Hole Bicycle Bottom Bracket Axle Kit Mountain Road Bike Repair Parts \| Square Taper Bottom Bracket Axle Kit BB Replacement Sealed Cartridge Bearings BSA Thread Mountain Bike Road Bike Bicycle Repa](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)
- [Bicycle Bottom Bracket Square Taper Bike Bottom Bracket for Mountain/MTB/Road/Fat Bike, Optional Square BSA 68mm x 110.5/113/118/120/122.5mm](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)
- [Bicycle Bottom Bracket Square Taper 68mm Sealed Cartridge \| Sealed cartridge design, phosphated cups, smooth rotation for 68mm frames, aluminium sheath, quiet ride](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)
- [Bicycle Bottom Bracket Sealed Bearing Square Taper 68mm Shell Black \| 103 107 113 118 127mm Length \| Replacement Crankset Axle \| Cycling Component \| Chromium Steel Spindle](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)
- [equlup 5 Size Square Taper Bottom Bracket, Bike Bottom Bracket Square Hole Crank Axis 68x118/120/122.5/124.5/127.5mm Sealed Bearings Bike Parts for Square Tapered Spindle Crank](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)
- [POENVFPO Cycle Bottom Bracket,Steel Square Tapered Threaded Bottom Bracket for Fat Snow Bikes](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)

## Add-ons

- [SHIMANO HG40 116 W/CL Chain - Grey, 6/7/8 Speed](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)
- [AEYINO 104 BCD Single Speed MTB Crankset - 170mm Square Taper \| Multiple chainring options 30T-42T, narrow wide teeth for chain retention, durable aluminum alloy, standard 170mm crank arm](https://bargainpostbox.co.uk/visit/aeyino-bsa-square-taper-bottom-bracket-68mm)

## Images

![AEYINO BSA Square Taper Bottom Bracket, 68 mm — 1](https://bargainpostbox.co.uk/i/CGM0eotGhWHb5rlr2TxTQvP-BLri57aCC3soG5ZHTs8MnLh1EWfWg4PdRiur0T-p8hieM8LoAXLckCjtTHbNA6k9KuJr_eTxqDOv3ig-_lQQjuzT6AKa8vzZ.jpg)

![AEYINO BSA Square Taper Bottom Bracket, 68 mm — 2](https://bargainpostbox.co.uk/i/nlqLtFcMR0KSYVGndrznial0vIwx7vYox76WgOWZ5hVAyONN1-1PCnGPV5qgEzphHUWBD0w_DA4DmGatjy1_CLtcWekRL0G0JKYSjO80LUQG3Zps8pcfWNyh.jpg)

![AEYINO BSA Square Taper Bottom Bracket, 68 mm — 3](https://bargainpostbox.co.uk/i/mmqeb32oqrFJ7orFoHro7dOWmTDdmSFE3XUn8oyiTSkXeva00WIT--bn7kNPh0lzSNQh-6IFPm4cyn56DCKhY_ZakwR4YrEdVKc7iiIZQY92cyHM5mqfzMzi.jpg)

![AEYINO BSA Square Taper Bottom Bracket, 68 mm — 4](https://bargainpostbox.co.uk/i/CHxADl6Djf4V2BwMtD3lZ-kVwqviHX9nMCfpwSBlLyoiNvU7Nih5gJS8vXj6YalFbAy5WnFDvU41Vaaumw3J4Xw8U-v6DDV45sBkPFihwnLHTgP5768VeiTd.jpg)

![AEYINO BSA Square Taper Bottom Bracket, 68 mm — 5](https://bargainpostbox.co.uk/i/SS07wCHPjfjlbxigMumbRtclglGOF9ngg_6W-OGoC-pZfcs40rlUoUyZBDxlesHkRHtldZwf6HxJafDDT-8XMeMsgVL0UoVEp_V3GAiN9ZJH-jaUSlXFBKu-.jpg)

![AEYINO BSA Square Taper Bottom Bracket, 68 mm — 6](https://bargainpostbox.co.uk/i/BvaqL-yhUvaVe_mCyp-0S9SARjYJMHS7iNoatmTPC84A5Nut-gzyEHB0in7UEFxm05MGi0xtnzAd7oFfWOnZUP8_XTbUIgS1tm6PoG8IO03UHsCPar6VjClA.jpg)

![AEYINO BSA Square Taper Bottom Bracket, 68 mm — 7](https://bargainpostbox.co.uk/i/kdXP2nwl2O44QubsCj8vYzntdMOCzH2HkeskTU7PuDnaT3H5LD8Qc5qBXnImiNycZUV5vPhZVFCU3KTYB5EAHAKrB6an9v--KYHdZXyO2ChA0N3T91PajScr.jpg)