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$19.99
RTDHO Disc Brake Adapter for Mountain Bike,Post Front 203mm Rear 180mm Mount Adapters for 160mm 180mm 203mm 140mm Disc Brake Rotor,Front Rear Mounting Bracket Black — image 1
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RTDHO Disc Brake Adapter for Mountain Bike,Post Front 203mm Rear 180mm Mount Adapters for 160mm 180mm 203mm 140mm Disc Brake Rotor,Front Rear Mounting Bracket Black

$19.99
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About this item
  • Enhanced Braking Performance: This disc brake adapter improves overall braking stability by allowing the upgrade of your rotor size to 160mm, 180mm, 203mm or 140mm. Larger rotors provide better heat dissipation and enhanced control during long descents or technical trails, reducing brake fade and ensuring consistent performance. It's an essential upgrade for riders who seek better responsiveness from their braking system without replacing the entire setup
  • Durable and Lightweight Build: Crafted from premium CNC-machined aluminum alloy, this post mount adapter offers a perfect combination of strength and lightness. Unlike plastic or low-grade metal options, it resists corrosion and harsh weather while maintaining excellent structural integrity. It's a reliable component that stands up to tough trail conditions and off-road use, far outperforming typical stainless steel disc brake hose adapter alternatives in weight and durability
  • Compatible with Front and Rear Brakes: Whether you're installing it as a front or rear disc brake adapter, this versatile mount is designed to fit both post and side mount setups. Its universal application allows you to easily adapt the caliper position to accommodate different rotor sizes. This makes it an ideal solution for cyclists who frequently switch between bikes or adjust their braking configurations for varying terrains and conditions
  • Secure Fit with Easy Installation: Engineered for a precise and stable fit, this disc brake adapter rear and front mount includes bolts and clear directional markings for straightforward alignment. The post mount adapters ensure the caliper sits flush and true, minimizing vibration and maximizing brake response. No special tools required—just a few minutes of work to achieve a secure connection and optimal braking performance on any compatible frame or fork
  • Widely Compatible for Multiple Bikes: This adapter is compatible with most major bike brands and models using disc brakes, including mountain bikes, electric bikes, gravel bikes and hybrids. It's a dependable replacement or upgrade that works well with caliper systems requiring a stainless steel disc brake hose adapter or post mount adapters. Perfect for cyclists looking to fine-tune their setups for trail, road or urban riding without breaking the bank
Product description

Upgrade your bike’s braking system with our precision-engineered disc brake adapter, designed to enhance performance, safety, and compatibility for a wide range of riding needs. Whether you're hitting steep mountain trails or navigating technical terrain, our adapter lets you increase your rotor size for greater stopping power, reduced braking distance, and improved control. Constructed from high-quality aluminum alloy, this adapter offers excellent strength-to-weight ratio, resisting deformation and wear over time. The durable anodized finish ensures long-lasting protection against corrosion and the elements, making it suitable for use in various climates and conditions. Unlike fragile plastic alternatives, this adapter is built to withstand the demands of intense mountain biking and daily use. Precision machining and heat treatment deliver an exact fit, eliminating brake misalignment or wobble. This post mount adapter supports multiple configurations and helps adapt your post mount or IS (International Standard) brake mounts to larger rotors, such as from 160mm to 180mm or 203mm. Our design ensures your caliper sits securely in the correct position, allowing for consistent and even braking pressure on your disc rotor. This disc brake adapter rear and front model is compatible with a wide variety of mountain bikes and brake systems. Whether you’re upgrading an older bike or customizing a new build, it supports common rotor sizes like 140mm, 160mm, 180mm, and 203mm.Clearly marked front or rear indicators make installation straightforward, and the included bolts ensure a secure mount. Perfect for DIY riders and mechanics alike, this stainless steel disc brake hose adapter alternative is ideal for enhancing your existing system.

Product details
Brand
RTDHO
Manufacturer
RTDHO
Material
Aluminium
Colour
Black
Size
‎standard

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

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