---
product_id: 548971205
title: "BUCKLOS 1-1/8 Bike Headset MTB Threadless 34 44 44-50.6 44-55 44-56 41.8-52mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut"
brand: "bucklos"
price: "¥6055"
currency: JPY
in_stock: true
reviews_count: 10
category: "Bucklos"
url: https://www.desertcart.jp/products/548971205-bucklos-1-1-8-bike-headset-mtb-threadless-34-44
store_origin: JP
region: Japan
---

# Quick, tool-friendly installation in under 15 minutes Double-sealed steel bearings for ultra-smooth steering Fits multiple frame sizes & fork diameters for versatile use BUCKLOS 1-1/8 Bike Headset MTB Threadless 34 44 44-50.6 44-55 44-56 41.8-52mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut

**Brand:** bucklos
**Price:** ¥6055
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your ride with precision and style — don’t get left behind!

## Quick Answers

- **What is this?** BUCKLOS 1-1/8 Bike Headset MTB Threadless 34 44 44-50.6 44-55 44-56 41.8-52mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut by bucklos
- **How much does it cost?** ¥6055 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/548971205-bucklos-1-1-8-bike-headset-mtb-threadless-34-44)

## Best For

- bucklos enthusiasts

## Why This Product

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

## Key Features

- • **Universal Fit:** Compatible with 28.6mm steerer forks and a wide range of head tube diameters (34-56mm).
- • **Durable & Lightweight:** Premium aluminum construction balances strength with minimal added weight.
- • **Silky Smooth Steering:** Double-sealed bearings reduce friction and eliminate play for buttery handlebar control.
- • **Effortless Installation:** Designed for fast, hassle-free setup with included expander plug and star nut compatibility.
- • **Trusted by Over 1 Million Riders:** BUCKLOS delivers proven quality and performance that cycling pros swear by.

## Overview

The BUCKLOS 1-1/8" threadless bike headset is engineered for mountain and road bikes, featuring double-sealed steel bearings for smooth, low-friction steering. Compatible with a broad range of frame head tube sizes and 28.6mm fork tubes, it offers quick installation with included expander plug and star nut. Crafted from durable aluminum, this headset is a top-rated, lightweight upgrade trusted by over a million cyclists worldwide.

## Description

BUCKLOS 1-1/8" threadless headset for MTB/road bikes. Fits 28.6mm fork tubes, headtube IDs: 34/44/44-50.6/44-55/44-56/41.8-52mm, crown race: 30/39.8mm. Features double-sealed bearings, low friction seals, and includes expander plug. Easy install, smooth performance.

Review: Must have for fork replacement - Replaced the forks on my bike, went this bearing solution. Old forks did not have sealed bearings like this kit. Super simple installation, 15 minutes. Do yourself the favor when you order this. Also purchase the tool to sink the star nut. You will likely use the star nut not the compression fitting. Once installed and tightened zero play in the head. Easy assembly with my new forks and existing neck and bars. Inexpensive and quality solution. Looks great. Silky smooth bearing action.
Review: Bucklos is still rocking it in my book. - This is my 4th order from Bucklos and I must say they don't disappoint. two out of the four where on time and two came early. Great quality everything I've gotten so far has made my bike way lighter and everything fit perfectly with little or no adjustment.

## Features

- Applications: Applicable to 34-34 mm frame head tube + 28.6 mm straight steerer fork head tube, crown race: 30 mm. Black, red colors are optional, suitable for folding bike, easy to install, great quality, low friction face-seals on the crown races
- Double-sealed Bearings: Equipped with double-sealed steel bearings to capture compression rings and reduce the number of loose parts. It is smoother and easier to maintain than ball bearings, making the handlebars light and smooth
- Easy to Install: Easy to install, save time and effort, good value for money. When driven, the bike feels as smooth as butter
- Headset Expander Plug: Fits front fork with tube diameter of 28.6 mm, and carbon fiber fork and mountain suspension fork are applicable. It can be used repeatedly, easy to install and disassemble, and can be installed in a few minutes with a hex wrench
- Trustworthy Brand: BUCKLOS is committed to meeting customer requirements by providing great product and professional service and and has provided assistance to more than 1,000,000+ users worldwide. It is a great gift for cycling enthusiasts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C89Y2HQY |
| Best Sellers Rank | #14,572 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1 in Bike Headsets |
| Brand Name | BUCKLOS |
| Color | 34-34mm-Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (332) |
| Date First Available | June 16, 2023 |
| Included Components | Headset/star nut/Expander Plug |
| Item Package Dimensions L x W x H | 2.56 x 2.48 x 2.32 inches |
| Item Weight | 0.16 Kilograms |
| Manufacturer | BUCKLOS |
| Material | Aluminum |
| Package Weight | 0.16 Kilograms |
| Size | 34-34mm |

## Images

![BUCKLOS 1-1/8 Bike Headset MTB Threadless 34 44 44-50.6 44-55 44-56 41.8-52mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut - Image 1](https://m.media-amazon.com/images/I/719yxrW7OzL.jpg)
![BUCKLOS 1-1/8 Bike Headset MTB Threadless 34 44 44-50.6 44-55 44-56 41.8-52mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut - Image 2](https://m.media-amazon.com/images/I/71VyNSam5YL.jpg)
![BUCKLOS 1-1/8 Bike Headset MTB Threadless 34 44 44-50.6 44-55 44-56 41.8-52mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut - Image 3](https://m.media-amazon.com/images/I/71di9gcexXL.jpg)
![BUCKLOS 1-1/8 Bike Headset MTB Threadless 34 44 44-50.6 44-55 44-56 41.8-52mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut - Image 4](https://m.media-amazon.com/images/I/71EtVno41QL.jpg)
![BUCKLOS 1-1/8 Bike Headset MTB Threadless 34 44 44-50.6 44-55 44-56 41.8-52mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut - Image 5](https://m.media-amazon.com/images/I/71ZOerxr0nL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: How to choose the right Headset?**
A: 1.Measuring head tube inside diameter up and down 2.Measuring fork outside diameter up and down

**Q: Does this heaset come with adapter to put the straight fork into the straight headtube bike frame ?**
A: Yes, this headset includes a 30mm adapter.

**Q: Is this star nut safe to use on a carbon fiber frame?**
A: It is better not to use the star nut in the carbon steering tube, but to use the expander plug. There are two choices of star nut and expander plug in this Headset, you can choose to use it according to the material of the steering tube.

**Q: Is this a sealed bearing headset?**
A: Yes, it comes with double sealed bearings, not cheap exposed ball bearings.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Must have for fork replacement
*by H***5 on July 31, 2025*

Replaced the forks on my bike, went this bearing solution. Old forks did not have sealed bearings like this kit. Super simple installation, 15 minutes. Do yourself the favor when you order this. Also purchase the tool to sink the star nut. You will likely use the star nut not the compression fitting. Once installed and tightened zero play in the head. Easy assembly with my new forks and existing neck and bars. Inexpensive and quality solution. Looks great. Silky smooth bearing action.

### ⭐⭐⭐⭐⭐ Bucklos is still rocking it in my book.
*by C***T on February 13, 2026*

This is my 4th order from Bucklos and I must say they don't disappoint. two out of the four where on time and two came early. Great quality everything I've gotten so far has made my bike way lighter and everything fit perfectly with little or no adjustment.

### ⭐⭐⭐⭐⭐ Higher Quality headset for a budget price
*by P***R on January 27, 2026*

Higher Quality headset for a budget price; one of the building block on by cheap Ebike fork upgrade.

## Frequently Bought Together

- BUCKLOS 1-1/8 Bike Headset MTB Threadless 34 44 44-50.6 44-55 44-56 41.8-52mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut
- BUCKLOS 11PCS Headset Spacer Bike 1-1/8 Fork Stem Aluminum Carbon Fiber Washer - 20 15 10 5 3 2 mm Mountain Bikes Road Bicycle Threadless Ultralight Headset Spacers, fit MTB Road BMX Folding Bikes.
- 31.8 Stem 45mm Bike Stem Wake Mountain Bike Stem Short Handlebar Stem for Most Bicycle, Road Bike, MTB, BMX, Fixie Gear, Cycling (Aluminum Alloy, Black Blue Gold Red)

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**Shop now:** [https://www.desertcart.jp/products/548971205-bucklos-1-1-8-bike-headset-mtb-threadless-34-44](https://www.desertcart.jp/products/548971205-bucklos-1-1-8-bike-headset-mtb-threadless-34-44)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-24*