Technical sheet

Lezyne External bottom bracket tool

Name: Lezyne External bottom bracket tool
Brand: Lezyne
SKU: 135931944
Price: 7.99 EUR
Availability: InStock
Rating: 5 (25 reviews)

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25 Reviews

7 Questions

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Long

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Features of Lezyne External

Product description of Lezyne External bottom bracket tool

Description summary

Maintain your bike like a pro with the LEZYNE External Bottom Bracket Tool. This precision-engineered tool ensures a secure fit, preventing damage to your drivetrain. Its versatile drive system accommodates various wrenches and torque tools. Built for durability and compatibility with major brands like Shimano and SRAM, it´s essential for flawless installation and removal. Upgrade your maintenance arsenal with this robust, reliable tool for perfect drivetrain performance

LEZYNE External Bottom Bracket Tool | Precision Drivetrain Maintenance

Achieve workshop-level precision in your own garage with the LEZYNE External Bottom Bracket Tool, an essential piece of equipment for any serious cyclist´s maintenance arsenal. Designed for the installation and removal of a wide array of external bottom brackets, this tool is engineered to provide a perfect fit and reliable performance, protecting your frame and expensive components from damage. Whether you are a home mechanic dedicated to perfecting your ride or a professional technician demanding durability and precision, this tool is built to exceed your expectations and deliver flawless results time and time again.

The primary benefit of the LEZYNE External Bottom Bracket tool lies in its meticulous construction. The precisely machined interface ensures full, secure engagement with the bottom bracket cup splines. This eliminates the frustrating and potentially damaging slippage common with lesser-quality tools, giving you the confidence to apply the necessary torque for both installation and removal without fear of stripping or marring your components. This focus on a secure fit makes all the difference when working with high-end parts from brands like Chris King, Shimano, or SRAM.

Versatility is at the core of this tool´s design. It offers multiple drive options, making it a flexible addition to any toolkit. You can use it with a large 32 mm wrench, LEZYNE´s own CNC Rod for superior leverage, a standard adjustable wrench, or a 3/8 inch socket drive with a torque wrench for perfect, to-spec installations. This adaptability ensures you always have the right setup for the job. Its robust, heavy-duty build guarantees a long service life, standing up to the repeated rigors of shop use while providing the reliability needed for critical drivetrain maintenance.

Main Features:

* Precision-Engineered Fit: Expertly machined to engage securely with external bottom bracket cups, preventing slippage and protecting components from damage.
* Versatile Drive System: Compatible with a 32 mm CNC Rod, a standard 32 mm wrench, an adjustable wrench, or a 3/8 inch socket drive for use with torque wrenches.
* Comprehensive Compatibility: Engineered to work seamlessly with a vast range of the most popular external bottom bracket systems on the market.
* Heavy-Duty Construction: Built for durability and longevity, providing reliable, professional-grade performance for countless maintenance tasks.
* Essential Drivetrain Tool: The definitive tool for correctly installing, removing, and servicing the critical bottom bracket area of your bicycle´s transmission.

Technical Specifications:

* Product Type: External Bottom Bracket Tool
* Drive Compatibility: For use with 32 mm CNC Rod, adjustable wrench or 3/8 inch socket drive.
* Weight: 227g
* External Bottom Bracket Compatibility: Campagnolo, Chris King, FSA, Phil Wood, Race Face, Shimano, SRAM, Truvativ

Specifications

Manual

Technical specifications of Lezyne External

Features of Lezyne External

Color Silver

Color

Silver

Subcategories Bottom Bracket

Subcategories

Bottom Bracket

Key differentiators

Technology in Lezyne External bottom bracket tool

Energy rating

Warnings

4.96 / 5

25 Reviews

What our customers are saying about Lezyne External bottom bracket tool

This robust tool offers excellent performance for both bike bottom bracket assembly/disassembly and Centerlock disc brake rotor removal/installation. Its precise fit, especially with Shimano Hollowtech II and Truvativ GXP bottom brackets, ensures scratch-free operation on anodized aluminum surfaces. Constructed from very good, solid material, it provides a secure grip, preventing damage to delicate bike components. The integrated design allows for use with a 3/8" drive wrench or standard pliers, making it a versatile and practical addition to any cyclist´s toolkit

Perfect

2026/09/30

Patrice

Quality tool, and easy to use, perfect for my Shimano crankset

Excellent tool

2026/09/14

David

Excellent tool, very precise in its fit. The tool´s resistance impressed me; it was used to remove a completely stuck bottom bracket. It was necessary to use a pipe for leverage, which showed its strength. I recommend it

Excellent quality

2026/08/26

cesar

Excellent quality tool, robust and with very careful finishing. The fit in the bottom bracket is precise and allows for safe work, without play or slipping. It is easy to use and greatly facilitates disassembly and assembly, avoiding improvisations or inadequate tools. The usual LEZYNE quality is noticeable, being a tool that inspires confidence and appears to have considerable durability. Ideal for both those who maintain their bicycle at home and for more frequent use in a workshop. For its performance and build quality, I consider it an excellent purchase and recommend it

Excellent product

2026/08/24

Paco

Excellent product! Very useful! It supports a wrench and a torque wrench. I used it for a center lock disc that I couldn´t loosen with the bottom bracket wrench! Fast and efficient shipping!

Super tools

2025/10/27

polo

I used it to assemble a bottom bracket. No problems, solid. I think it can also be used to remove a seized bottom bracket with a clamp and a large wrench.

Optimal

2025/07/24

claudio

A good, precise tool. Well made. Very useful for various applications.

Perfect

2025/05/26

Ernesto

The piece seems very sturdy, fits perfectly on my SHIMANO hollowtech II bottom bracket

Functional and robust

2025/04/28

Gaetano

The tool is perfect and very sturdy.

Practical and inexpensive

2025/03/31

Didier

Competitive price and practical tool thanks to the possibility of using it with a standard connection with a torque wrench or simply using the hexagonal part for clamps with pliers.

Lezyne

2025/03/13

Szabo

good price/quality

Premium quality for regular price

2024/12/27

Bihari

I have seen many pricey showbikes with scratched BBs&hubs -not cool, no bling! If you don't want to sctatch your clients shiny anodised aluminium bottom brackets (threaded BSA: Shimano hollowtec&Truvative GXP) and Centerlock brakedisk nuts you should use precision tool that contacts the full surface. Buy this!

Cemterlock key

2024/12/13

juan

Good product

Master key

2024/08/13

hermenegildo

Good quality

Best product

2024/06/03

John

Thank you for all bikeinn

Key for center lock

2024/05/02

DAVIDE

wrench for replacing brake discs with Center Lock. Very good material and fits perfectly.

Perfect

2024/04/28

Ser

Of good quality.

Very robust

2024/02/11

Carles

Perfect for centerlock discs

Good quality at a good price

2024/02/04

Pablo

Quality tool at a low price, what more could you ask for? It can also be used with a 3/8" wrench.

Good

2024/02/01

Sen'

Good tool for "Centerlock" external nut

Center lock disc key

2024/01/13

Llave para discos Center Loock

Tool for changing Shimano Center Lock brake discs. Very good material and they fit perfectly. Highly recommended

Great

2024/01/09

Tomás

Serves for center lock discs

Quality

2023/12/18

Massimo

excellent product used for brake discs at a good price

Solid and effective

2023/11/21

Alex

solid product, perfect for working safely

Great

2023/10/06

Fabrizio

Excellent quality for bottom brackets and center look disc disassembly

It works

2023/09/08

chercen

Used for center lock discs on wheels where the axle protrudes, thanks to the internal hole

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Include AI Generated questions and answers

2024-04-24

Daniele

es bueno para sacar un BB Hollowtech II?

Answer of Carles

Well, it is compatible!

* Generated by AI based on customer and product data

2025-02-02

Nikolai

Hello, what is the inner diameter and does the tool fit Shimano SM-BB80? Thank you

Answer of David

I just measured mine: it’s 46mm. Works perfectly with Shimano hollow tech 2 bottom brackets such as the SM-BB80

* Generated by AI based on customer and product data

2023-10-21

pietro

Good morning, I would like to ask if the wrench is also suitable for the external ring nut Center Lok Shimano brake disc

Answer of Alex

Yes it's great for centerlock, good reach and a large center hole makes this tool perfect for working on thru axle hubs.

Answer of Fabrizio

Yes, it´s great for removing the bushing from center look discs, I use it for this. Of great quality

Answer of Moreno

Yes, it measures well and is also deep. I just made a small modification, I filed the upper part with an abrasive disc because the teeth are lower than the edge. By doing this the key grips more

* Generated by AI based on customer and product data

2024-02-02

Maurizio

Hi, this wrench is compatible for dismantling the Schimano Dura Ace bottom bracket with 68 mm English thread

Answer of Clas

Yes, if it's a Hollowtech II-type, threaded bottom bracket. The newer Dura-Ace BB-9000 and BB-R9100 bottom brackets will require the use of the plastic reducer (TL-FC24) that is included when you buy the BB, as these cups have a smaller outside diameter.

* Generated by AI based on customer and product data

2023-10-25

Jose Luis

Hello, is this Lezyne External Bottom Bracket Socket Tool suitable for disassembling and assembling Shimano center lok discs with SM HB20 clamping nut? thank you

Answer of Enric

Yeah. Very good tool.

* Generated by AI based on customer and product data

2023-11-30

Jordi

Hello, I wanted to know if this wrench is compatible with removing the Sram Dub BSA 73mm threaded bottom bracket cups? Thanks greetings!!

Answer of Giuseppe

Hi, yes this wrench is compatible with all BSA bottom brackets

* Generated by AI based on customer and product data

2024-03-18

Pedro montero

Good morning, I have a 1/2 dynamometer. I wanted to know what socket wrench do I need to use this tool? 1/2 24mm wrench? Thank you

Answer of Arturo

You can use a 3/4 wrench, 32 mm socket wrench or 32 mm open-end wrench.

Answer of Claudio

You can use either a 32 wrench or a 3/8 socket

* Generated by AI based on customer and product data

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Lezyne External bottom bracket tool

Features of Lezyne External

Lezyne - Maintenance - Transmission tools

Product description of Lezyne External bottom bracket tool

Technical specifications of Lezyne External

Color Silver

Subcategories Bottom Bracket

What our customers are saying about Lezyne External bottom bracket tool

Use cases

Best for

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