---
product_id: 536982756
title: "ONIPAX Bike Anti-Theft Seatpost Lock M6x45mm Tamper-Resistant Security Bolt"
brand: "onipax"
price: "$27.80"
currency: USD
in_stock: true
category: "Onipax"
url: https://www.desertcart.us/products/536982756-onipax-bike-anti-theft-seatpost-lock-m6x45mm-tamper-resistant-security
store_origin: US
region: United States of America
---

# 7-lobe proprietary security 3-minute easy installation High-tensile Cr-Mo steel axle ONIPAX Bike Anti-Theft Seatpost Lock M6x45mm Tamper-Resistant Security Bolt

**Brand:** onipax
**Price:** $27.80
**Availability:** ✅ In Stock

## Summary

> 🔒 Lock in your ride’s security, unlock your freedom.

## Quick Answers

- **What is this?** ONIPAX Bike Anti-Theft Seatpost Lock M6x45mm Tamper-Resistant Security Bolt by onipax
- **How much does it cost?** $27.80 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/536982756-onipax-bike-anti-theft-seatpost-lock-m6x45mm-tamper-resistant-security)

## Best For

- onipax enthusiasts

## Why This Product

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

## Key Features

- • **Quick & Hassle-Free Upgrade:** Swap your quick-release in just 3 minutes with the included specialized key—no mechanic needed.
- • **Unbeatable Anti-Theft Defense:** Tamper-resistant 7-lobe bolt blocks common tools and opportunistic thieves.
- • **Peace of Mind for Urban Riders:** Secure your saddle confidently at busy train stations and city centers where theft risk is highest.
- • **Universal Fit, Zero Compromise:** Precision-machined M6x45mm bolt fits most seatposts, upgrading security while maintaining a clean look.
- • **Premium Strength Meets Sleek Design:** High-tensile Cr-Mo steel axle with aluminum alloy nut for maximum clamping force without bulk.

## Overview

The ONIPAX Bike Binder Bolt is a tamper-resistant, high-strength seatpost clamp featuring a proprietary 7-lobe security design that requires a unique key, effectively preventing theft. Made from durable Cr-Mo steel and aluminum alloy, it fits most standard seatposts (M6x45mm) and installs easily in under 3 minutes, making it the perfect upgrade for urban cyclists seeking reliable, sleek bike protection.

## Description

desertcart.com: ONIPAX Bike Anti-Theft Seatpost Lock M6x45mm, Tamper-Resistant Alloy Locking Binder Bolt with 7-Lobe Security Key, Secure Bike Component Protector for Urban Commuters and Road Cycling Security : Sports & Outdoors

## Features

- [Stop Opportunistic Theft] Standard quick-release levers make your saddle an easy target. Our tamper-resistant locking bolt ensures that your seatpost remains securely attached to your frame, giving you peace of mind when parking at train stations or city centers.
- [Proprietary 7-Lobe Security] Unlike common hex bolts that can be opened with a standard multi-tool, our specialized 7-lobe pin design requires a matching ONIPAX key. This advanced tamper-resistant barrier effectively blocks unauthorized removal by common hand tools.
- [High-Strength Construction] Built with a high-tensile Cr-Mo steel axle and an aluminum alloy nut, this binder bolt offers superior clamping force. The tamper-resistant hardware is engineered to withstand both heavy vibration and determined theft attempts.
- [Seamless Universal Fit] This M6x45mm bolt is precision-machined to replace most standard seatpost clamps perfectly. It provides a low-profile, tamper-resistant upgrade that enhances your bike’s security without sacrificing its clean, professional aesthetic.
- [Easy 3-Minute Installation] You don't need to be a mechanic to secure your ride. Using the included specialized tool, you can swap out your vulnerable quick-release for this tamper-resistant bolt in minutes, providing an immediate boost to your bike's defense.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BXX27G7K |
| Additional Features | Proprietary 7-Lobe Security, Tamper-Resistant Construction, Easy Installation |
| Best Sellers Rank | #33,340 in Automotive ( See Top 100 in Automotive ) #23 in Powersports Alarms & Anti-Theft |
| Brand Name | ONIPAX |
| Color | Anti-Theft(Black) |
| Customer Reviews | 4.3 4.3 out of 5 stars (270) |
| Included Components | NotApplicable |
| Item Dimensions | 0.24 x 0.24 x 1.77 inches |
| Item Weight | 15 Grams |
| Manufacturer | ONIPAX |
| Manufacturer Part Number | SFR-0x-Parent |
| Manufacturer Warranty Description | NotApplicable |
| Material Type | Aluminum |
| Model Name | SFR-0x-Parent |
| Model Number | AF-S02 |
| Number of Pieces | 1 |
| Recommended Uses For Product | Urban bike security, Garage |
| Smart Home Compatibility | Not Smart Home Compatible |
| UPC | 737655471250 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** ONIPAX
- **Item dimensions L x W x H:** 0.24 x 0.24 x 1.77 inches
- **Material:** Aluminum
- **Recommended Uses For Product:** Urban bike security, Garage
- **Special Feature:** Proprietary 7-Lobe Security, Tamper-Resistant Construction, Easy Installation

## Images

![ONIPAX Bike Anti-Theft Seatpost Lock M6x45mm Tamper-Resistant Security Bolt - Image 1](https://m.media-amazon.com/images/I/61CILhL9vxL.jpg)

## Available Options

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

## Questions & Answers

**Q: What happens if I lose the special tool?**
A: We offer replacement tools for purchase. Please contact ONIPAX and provide your order information for assistance.

**Q: Is this anti-theft bolt actually reliable for long-term city parking?**
A: Yes. Standard quick-release levers are extremely vulnerable. Our system uses a unique 7-lobe pin design that cannot be removed with common multi-tools. It creates a significant deterrent, ensuring your saddle remains secure in public areas.

**Q: Will this fit my specific bike model, and is the installation difficult?**
A: This M6x45mm bolt is a universal fit for most standard seatpost clamps. Installation is simple: replace your current quick-release lever with the ONIPAX bolt using the included specialized tool. It provides a secure fit in just a few minutes.

**Q: Can a thief just use a pair of pliers to unscrew this security bolt?**
A: Our tamper-resistant design features a low-profile, smooth-surface nut that makes it extremely difficult for pliers to grip. Without the proprietary 7-lobe key, attempting to force it open is loud, time-consuming, and highly likely to fail.

**Q: Why should I choose a locking bolt over a standard hex-head bolt?**
A: Almost every bike thief carries a standard Allen wrench set. A standard hex bolt offers very little protection. The ONIPAX locking bolt requires a non-standard tool, effectively stopping "crimes of opportunity" in their tracks.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-24*