---
product_id: 16904434
title: "Park Tool Tretlager BBT-29 16-Kerbbecher Werkzeug 39mm/48,5mm"
brand: "park tool"
price: "$73.61"
currency: USD
in_stock: true
reviews_count: 13
category: "Park Tool"
url: https://www.desertcart.us/products/16904434-park-tool-tretlager-bbt-29-16-kerbbecher-werkzeug-39mm-48
store_origin: US
region: United States of America
---

# Fits 39mm & 48.5mm cups Dual-ended precision fit High-leverage plated steel Park Tool Tretlager BBT-29 16-Kerbbecher Werkzeug 39mm/48,5mm

**Brand:** park tool
**Price:** $73.61
**Availability:** ✅ In Stock

## Summary

> 🔩 Master your ride with the ultimate bottom bracket wrench!

## Quick Answers

- **What is this?** Park Tool Tretlager BBT-29 16-Kerbbecher Werkzeug 39mm/48,5mm by park tool
- **How much does it cost?** $73.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/16904434-park-tool-tretlager-bbt-29-16-kerbbecher-werkzeug-39mm-48)

## Best For

- park tool enthusiasts

## Why This Product

- Trusted park tool brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Durable:** Lightweight 0.22kg tool built to last through countless maintenance sessions
- • **Ergonomic Leverage Handle:** Long plated-steel handle for effortless torque application
- • **Precision Dual-Ended Design:** Two sizes in one tool for ultimate versatility
- • **Trusted Legacy Craftsmanship:** Park Tool quality backed by 50+ years of bike repair expertise
- • **Fits Industry-Leading Bottom Brackets:** Compatible with Shimano Dura-Ace 9000, XTR 980 & FSA MegaEvo

## Overview

The Park Tool BBT-29 is a double-ended bottom bracket wrench engineered for 16-notch external bearing cups measuring 39mm and 48.5mm in diameter. Designed for professional-grade compatibility with Shimano Dura-Ace 9000, XTR 980, and FSA MegaEvo series, it features a long plated-steel handle for superior leverage and durability. Trusted by mechanics worldwide, this tool ensures precise installation and removal of threaded bottom brackets, making it an essential addition to any serious cyclist’s toolkit.

## Description

Product description Park Tool BBT-29 Double-Ended Bottom Bracket Wrench Bicycle bottom brackets occasionally require removal for service, replacement, or upgrading. The Park Tool BBT-69.2 is a double-ended bottom bracket wrench for the installation and removal of 16-notch threaded external bearing bottom brackets with an outside diameter of 39mm (e.g. Shimano Dura-Ace 9000 series and XTR 980 series) as well as 16-notch bearing cups with an outside diameter of 48.5mm (e.g. FSA MegaEvo, Wheels Manufacturing). The long, plated-steel handle offers good leverage for high-torque applications. Manufactured by Park Tool, the most trusted name in bicycle tools and repair equipment for over 50 years. Park Tool: Your Guide to the World of Bottom Brackets Confused by what bottom bracket tool you need? You're not alone. Between all the standards, installation methods, and tool fittings, it can all seem a bit overwhelming. Whatever you do need, Park Tool makes over 40 different tools to aid in the removal and installation of bottom brackets. Here's how to determine the correct tool for you, if you have an threaded or thread-together bottom bracket Count Splines/Notches Remove the crank and inspect the bottom bracket shell for tool fittings , which can be notches or indentations on the outer perimeter, splines on the inside perimeter, or pin holes on the face. Count the number of tool fittings on the cup. Measure Diameter Next use a caliper to measure the diameter or width of the tool fittings. For external notches, simply measure the outer diameter of the bottom bracket cup or adapter. Take the measurement in millimeters. Select Tool The BBT-29 is for 16-notch/39mm and 16-notch/49mm tool fittings. Here are some tools we offer for this and a few similar tool fittings TRUSTED SINCE 1963 Since our origins in the back of a bike shop in 1963, it has been Park Tool's sole mission to design and manufacture high-quality tools that empower mechanics and riders of all skill levels to service their bicycles. Just like our other 500+ tools, our bottom bracket tools are a product of our decades of experience and expertise in the industry, in the shop and on the trail.

Review: Nice piece, but it didn't work for me. - I bought this to tighten the bottom bracket that came with my Shimano 105 R7000 setup. Although the dimensions seemed to be right, it didn't fit. It looks like a nice quality tool though. I don't fully understand the bottom bracket sizing and how to make them work.. Anyway I just ended up getting an ultegra BB from a friend, and borrowing the appropriate tool from him to tighten it. Note: this tool didn't fit the ultegra BB either. Maybe Park Tool can come up with a guide or chart on what tool to use with what BB? Maybe someone has already done that? I don't know....
Review: Good BB tool - One of many BB standards...so check your size. This one works great, serves its purpose, no complaints.

## Features

- Double-ended bottom bracket wrench
- Smaller end fits 16-notch bearing cups with an outside diameter of 39mm (i.e. Shimano Dura-Ace 9000 series and XTR 980 series)
- Larger end fits 16-notch bearing cups with an outside diameter of 48.5mm (i.e. FSA MegoEvo)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00DX5X48E |
| Best Sellers Rank | #375,484 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1,186 in Bike Shop Tools |
| Brand | Park Tool |
| Brand Name | Park Tool |
| Color | Silver |
| Customer Reviews | 4.7 out of 5 stars 278 Reviews |
| Finish Types | Natural |
| Global Trade Identification Number | 00763477000583 |
| Head Style | Fixed Square |
| Included Components | Bottom Bracket Tools |
| Item Length | 39 Millimeters |
| Item Package Quantity | 1 |
| Item Type Name | Tool |
| Item Weight | 0.22 Kilograms |
| Manufacturer | Park Tool |
| Manufacturer Part Number | QKBBT29 |
| Manufacturer Warranty Description | Limited Lifetime Warranty - see Parktool.com/warranty for details |
| Material | Multi |
| Material Type | Multi |
| Model Number | QKBBT29 |
| Operation Mode | Mechanical |
| Package Quantity | 1 |
| UPC | 784427871299 763477000583 757183513611 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Park Tool
- **Color:** Silver
- **Item Length:** 39 Millimeters
- **Item Weight:** 0.22 Kilograms
- **Material:** Multi

## Images

![Park Tool Tretlager BBT-29 16-Kerbbecher Werkzeug 39mm/48,5mm - Image 1](https://m.media-amazon.com/images/I/717kytrwXKL.jpg)
![Park Tool Tretlager BBT-29 16-Kerbbecher Werkzeug 39mm/48,5mm - Image 2](https://m.media-amazon.com/images/I/71pzob-KfNL.jpg)
![Park Tool Tretlager BBT-29 16-Kerbbecher Werkzeug 39mm/48,5mm - Image 3](https://m.media-amazon.com/images/I/71wTVuNDZlL.jpg)
![Park Tool Tretlager BBT-29 16-Kerbbecher Werkzeug 39mm/48,5mm - Image 4](https://m.media-amazon.com/images/I/71Tn0-tqoAL.jpg)
![Park Tool Tretlager BBT-29 16-Kerbbecher Werkzeug 39mm/48,5mm - Image 5](https://m.media-amazon.com/images/I/81Wn0XcHhSL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice piece, but it didn't work for me.
*by S***Y on July 6, 2019*

I bought this to tighten the bottom bracket that came with my Shimano 105 R7000 setup. Although the dimensions seemed to be right, it didn't fit. It looks like a nice quality tool though. I don't fully understand the bottom bracket sizing and how to make them work.. Anyway I just ended up getting an ultegra BB from a friend, and borrowing the appropriate tool from him to tighten it. Note: this tool didn't fit the ultegra BB either. Maybe Park Tool can come up with a guide or chart on what tool to use with what BB? Maybe someone has already done that? I don't know....

### ⭐⭐⭐⭐⭐ Good BB tool
*by S***E on September 22, 2023*

One of many BB standards...so check your size. This one works great, serves its purpose, no complaints.

### ⭐⭐⭐⭐⭐ Buen producto
*by C***R on January 30, 2026*

Gran calidad como lo de park tool

## Frequently Bought Together

- Park Tool Tretlager BBT-29 16-Kerbbecher Werkzeug 39mm/48,5mm
- Park Tool Tool BBT-27.3 16-Notch 49mm
- Full Speed Ahead Bottom Bike Set 386 Mega Evo English Steel Bearing Bottom Bike Set, 30mm

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-14*