---
product_id: 288941081
title: "VeloTubes FR-21,40mm Black"
brand: "velotubes"
price: "₪155"
currency: ILS
in_stock: true
url: https://www.desertcart.co.il/products/288941081-velotubes-fr-21-40mm-black
store_origin: IL
region: Israel
---

# airtight seal with soft rubber base 40mm anodized aluminum stem anti-rust corrosion protection VeloTubes FR-21,40mm Black

**Brand:** velotubes
**Price:** ₪155
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Ride Light, Seal Tight, Win Every Mile!

## Quick Answers

- **What is this?** VeloTubes FR-21,40mm Black by velotubes
- **How much does it cost?** ₪155 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/288941081-velotubes-fr-21-40mm-black)

## Best For

- velotubes enthusiasts

## Why This Product

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

## Key Features

- • **Seal Like a Pro:** Large soft rubber base plus O-ring guarantees an airtight, leak-proof valve every ride.
- • **Satisfaction Assured:** Backed by VeloTubes’ no-questions-asked refund or replacement policy for total peace of mind.
- • **Perfect Fit Precision:** Available in 40mm length with a 12mm base to ensure seamless compatibility with your tubeless setup.
- • **Effortless Installation:** Designed for quick tightening and secure fit, saving you time and hassle on the trail.
- • **Featherweight Durability:** Crafted from ultra-light anodized aluminum for minimal weight and maximum corrosion resistance.

## Overview

The VeloTubes FR-21 40mm Black tubeless valve stem combines lightweight anodized aluminum construction with a superior airtight seal system, ensuring rust-free durability and leak-proof performance. Designed for cyclists who demand reliability and precision, it features a 40mm stem length with a 12mm base and a soft rubber seal with O-ring for perfect valve hole fit. Backed by a satisfaction guarantee, it’s the smart upgrade for any tubeless tire setup.

## Description

Tubeless SCHRADER Valves - Various Sizes & Colors - Aluminum

## Features

- SUPER LIGHT & ANTI-RUST: Made of lightweight anodized aluminum, our tubeless valve stem is not only lightweight but also anti-rust
- STEM LENGTH: 40mm or 46mm with 12mm base
- SUPERIOR SEAL: The large soft rubber base can easily form an airtight seal on the valve hole with the O-Ring ensuring that the nut can be tightened and protecting the rim
- SATISFACTION GUARANTEED: Please do not hesitate to contact us if you aren't happy. VeloTubes will provide you with a refund or send you a replacement to provide you with the most satisfactory solution.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | RoadUp |
| Brand | VeloTubes |
| Package Dimensions | 7.62 x 5.08 x 1.27 cm; 23 g |
| Item model number | FR21 40 Black |
| Manufacturer Part Number | FR-2140LBlack |
| Item Weight | 23 g |

## Product Details

- **Brand:** VeloTubes
- **Valve type:** Schrader
- **Material:** Rubber
- **Wheel size:** 29 Inches
- **Item diameter:** 40 Millimeters

## Images

![VeloTubes FR-21,40mm Black - Image 1](https://m.media-amazon.com/images/I/51nUWMck18L.jpg)
![VeloTubes FR-21,40mm Black - Image 2](https://m.media-amazon.com/images/I/61CXQVSvq0L.jpg)
![VeloTubes FR-21,40mm Black - Image 3](https://m.media-amazon.com/images/I/51m78fJRX1L.jpg)
![VeloTubes FR-21,40mm Black - Image 4](https://m.media-amazon.com/images/I/61Ukkl41eqL.jpg)

## Available Options

This product comes in different **Item Display Length, Color** options.

## Questions & Answers

**Q: Does the o ring go inside the rim?**
A: The O-Ring fits right up against the nut outside of the rim.  It protects the nut from scraping the rim and helps to prevent air leakage.

**Q: Is this price for just one valve?**
A: It is a pair

**Q: Does it come with a removable core?**
A: Schrader valve cores are always removable.

**Q: Will these work on a 26’ Maxxis holly roller it for a dirt jumper with presto valves**
A: No.  This is a schrader valve and not presta.  Please look for our Presta Valve Products by VeloTubes.

## Frequently Bought Together

- VeloTubes Tubeless Schrader Valve - Alloy - Pair - Choose Color and Size (40mm or 46mm)
- Stan's NoTubes Tire Sealant
- Stan's NoTubes 21-Millimeter Rim Tape for Rim Interior, 10 Yards x 21 MM

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**Shop now:** [https://www.desertcart.co.il/products/288941081-velotubes-fr-21-40mm-black](https://www.desertcart.co.il/products/288941081-velotubes-fr-21-40mm-black)

---

*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-01-22*