---
product_id: 65056026
title: "MBP Alloy Tubeless 40mm Bicycle Presta Valve Stems Fits Most Rims with 2 Types of Grommets Included for Each stem."
brand: "mbp"
price: "VT4856"
currency: VUV
in_stock: true
reviews_count: 8
category: "Mbp"
url: https://www.desertcart.vu/products/65056026-mbp-alloy-tubeless-40mm-bicycle-presta-valve-stems-fits-most
store_origin: VU
region: Vanuatu
---

# Removable valve core (RVC) 40mm Presta valve length Dual grommet fit for most rims MBP Alloy Tubeless 40mm Bicycle Presta Valve Stems Fits Most Rims with 2 Types of Grommets Included for Each stem.

**Brand:** mbp
**Price:** VT4856
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Upgrade your ride with leak-proof precision and effortless style!

## Quick Answers

- **What is this?** MBP Alloy Tubeless 40mm Bicycle Presta Valve Stems Fits Most Rims with 2 Types of Grommets Included for Each stem. by mbp
- **How much does it cost?** VT4856 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/65056026-mbp-alloy-tubeless-40mm-bicycle-presta-valve-stems-fits-most)

## Best For

- mbp enthusiasts

## Why This Product

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

## Key Features

- • **Dual Grommet System:** Includes two types of rubber seals to ensure a perfect fit on almost any rim—no leaks, no worries.
- • **Tool-Friendly Design:** Hand-tighten or use a small wrench with flattened valve sides for secure, easy installation every time.
- • **Lightweight Alloy Build:** Durable aluminum construction with sleek metal caps for premium performance and style.
- • **Removable Valve Core (RVC):** Effortless maintenance and inflation without tire removal—save time and hassle.
- • **Precision 40mm Presta Valve:** Optimized length for universal rim compatibility and superior air retention.

## Overview

The MBP Alloy Tubeless 40mm Presta Valve Stems deliver universal compatibility with most bicycle rims through a dual grommet system. Crafted from lightweight aluminum, these valve stems feature removable cores for easy maintenance and come with durable metal caps. Designed for both mountain and road bikes, they ensure a secure, leak-free seal with tool-friendly installation, making them a reliable upgrade for any cycling enthusiast.

## Description

desertcart.com: MBP Alloy Tubeless 40mm Bicycle Presta Valve Stems Fits Most Rims with 2 Types of Grommets Included for Each stem. : Sports & Outdoors

Review: You won’t be disappointed and excellent value. - Very happy with their performance, solid fit, and durability. I’ve removed these stems multiple times when I’ve changed tape/maintenance, and they reinstall just like the first time and provide the same performance. Unfortunately, I did not take a picture of the top before I put the tire back on, but there is a thick tapered rounded rubber “grommet” that seats into the wheel and shows no wear after several re-installations. Same goes for the internal threads for the core. Threads/seals fine. There’s an o-ring behind the nut (you can see in pic), which helps seal the rim side, and the nut stays secured and haven’t stripped or came loose. (Always check them regardless every time you check your tire's psi). The nut is shaped for a small wrench if necessary, depending on your finger's grip. The finishing touch is the metal valve caps that they come with. I would definitely purchase it again. Well priced for what you get. UPDATE 11/12/20 I've purchased two more sets since my original review, and all have worked excellently.
Review: Great value and performance - These tubeless valve stems are very nice. They feature toolless installation of the presta valves by hand into the stem itself. This can also be done via an adjustable wrench because the presta valves have two sides that are intentionally flattened to allow a wrench to achieve grip. They come with two different rubber seals which can sit inside the wheel which was a nice touch. The valve caps are also aluminum and have a rubber piece on them to allow for easier removal and installation when adding or removing air. Overall these are a quality pair of valve stems that do not leak and work well.

## Features

- ✅ Valve type: Presta. Length: 40mm.
- ✅ RVC (Removable Valve Core).
- ✅ Lightweight alloy construction, including cap.
- ✅ Mountain or Road Compatible.
- ✅ Includes 2 Grommet bases for each valve to accomodate almost all rim types.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07C35ZQQN |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #195,048 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #246 in Bike Stems |
| Brand Name | MBP |
| Color | Black |
| Compatible with Vehicle Type | Bicycle |
| Customer Reviews | 4.6 4.6 out of 5 stars (636) |
| Fit Type | Universal Fit |
| Item Diameter | 40 Millimeters |
| Manufacturer | Madison Bicycle Parts |
| Manufacturer Part Number | MBPOT001 |
| Material Type | Aluminum |
| Model Number | MBPOT001 |
| Number of Pieces | 4 |
| Shape | Round |
| UPC | 680332151016 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** MBP
- **Color:** Black
- **Fit Type:** Universal Fit
- **Material:** Aluminum
- **Vehicle Service Type:** Bicycle

## Images

![MBP Alloy Tubeless 40mm Bicycle Presta Valve Stems Fits Most Rims with 2 Types of Grommets Included for Each stem. - Image 1](https://m.media-amazon.com/images/I/51B0HGvtMUL.jpg)
![MBP Alloy Tubeless 40mm Bicycle Presta Valve Stems Fits Most Rims with 2 Types of Grommets Included for Each stem. - Image 2](https://m.media-amazon.com/images/I/61s2hvfXToL.jpg)
![MBP Alloy Tubeless 40mm Bicycle Presta Valve Stems Fits Most Rims with 2 Types of Grommets Included for Each stem. - Image 3](https://m.media-amazon.com/images/I/61C+qVH0bgL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ You won’t be disappointed and excellent value.
*by R***N on July 28, 2019*

Very happy with their performance, solid fit, and durability. I’ve removed these stems multiple times when I’ve changed tape/maintenance, and they reinstall just like the first time and provide the same performance. Unfortunately, I did not take a picture of the top before I put the tire back on, but there is a thick tapered rounded rubber “grommet” that seats into the wheel and shows no wear after several re-installations. Same goes for the internal threads for the core. Threads/seals fine. There’s an o-ring behind the nut (you can see in pic), which helps seal the rim side, and the nut stays secured and haven’t stripped or came loose. (Always check them regardless every time you check your tire's psi). The nut is shaped for a small wrench if necessary, depending on your finger's grip. The finishing touch is the metal valve caps that they come with. I would definitely purchase it again. Well priced for what you get. UPDATE 11/12/20 I've purchased two more sets since my original review, and all have worked excellently.

### ⭐⭐⭐⭐⭐ Great value and performance
*by J***N on October 20, 2020*

These tubeless valve stems are very nice. They feature toolless installation of the presta valves by hand into the stem itself. This can also be done via an adjustable wrench because the presta valves have two sides that are intentionally flattened to allow a wrench to achieve grip. They come with two different rubber seals which can sit inside the wheel which was a nice touch. The valve caps are also aluminum and have a rubber piece on them to allow for easier removal and installation when adding or removing air. Overall these are a quality pair of valve stems that do not leak and work well.

### ⭐⭐⭐⭐ Make sure you measure and account for the larger than average rubber sealing adapters
*by T***R on March 10, 2020*

These are closer to 35mm once you account for the thicker than average rubber seals. I bought these for my Specialized Roubaix after trying regular old Stans tubeless valve stems for a season and experiencing intermittent leaks. My bike has DT Swiss R470 tubeless ready aluminum wheels. The DT swiss brand tubeless stems use the "mailbox" shaped rubber gaskets inside the rim, so I figured these MBP stems with a similar fitting would work better than the small cone shaped stans. I didn't account for the extra room the thick rubber fittings would take up and using the "mailbox" shaped fittings did not leave enough of the stem sticking out of the rim to attach a pump. I switched to the cone shaped fittings and they worked fine. They are significantly larger in diameter than the Stans and are removable. Overall the stem and fitting seem much more durable than the Stans. The cone shaped fitting actually seals the rim hole and doesn't tear like the stans did. It seems like MBP measures from the bottom of the stem, instead of the top of the bottom rubber fitting, so I would measure these closer to 35mm than 40mm. My old stems were 44mm. Using the cone fitting with my rims I have just barely enough stem sticking out to attach a pump. I wish MBP made a 45mm version of this, then it would be perfect. If you have DT R470 wheels, I would consider a stem at least 5 mm longer than these, but they will still work in a pinch.

## Frequently Bought Together

- MBP Alloy Tubeless 40mm Bicycle Presta Valve Stems Fits Most Rims with 2 Types of Grommets Included for Each stem.
- Stan's NoTubes Tire Sealant
- Stan's NoTubes 25-Millimeter Rim Tape for Rim Interior, 10 Yards x 25 MM

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-07*