---
product_id: 637981232
title: "FIREFOX Tremor X 27.5D 21 Gear Mountain Bicycle for Adult | Blue | Front Suspension | Disc Brake | Steel Frame:18inch | Ideal Rider Height:5'5-5'11 | 98% Pre-Assembled | Ideal for Mens"
brand: "firefox"
price: "€ 395.94"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/637981232-firefox-tremor-x-27-5d-21-gear-mountain-bicycle-adult
store_origin: IE
region: Ireland
---

# 21-speed Shimano gears for seamless terrain mastery 98% pre-assembled for instant adventure 27.5-inch wheels for agile off-road control FIREFOX Tremor X 27.5D 21 Gear Mountain Bicycle for Adult | Blue | Front Suspension | Disc Brake | Steel Frame:18inch | Ideal Rider Height:5'5-5'11 | 98% Pre-Assembled | Ideal for Mens

**Brand:** firefox
**Price:** € 395.94
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Ride Bold. Ride Free. Own Every Path.

## Quick Answers

- **What is this?** FIREFOX Tremor X 27.5D 21 Gear Mountain Bicycle for Adult | Blue | Front Suspension | Disc Brake | Steel Frame:18inch | Ideal Rider Height:5'5-5'11 | 98% Pre-Assembled | Ideal for Mens by firefox
- **How much does it cost?** € 395.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/637981232-firefox-tremor-x-27-5d-21-gear-mountain-bicycle-adult)

## Best For

- firefox enthusiasts

## Why This Product

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

## Key Features

- • **Stop on a Dime:** Reliable disc brakes provide confident, responsive stopping power in all conditions.
- • **Ready to Roll in Minutes:** 98% pre-assembled setup means less waiting, more riding—perfect for busy professionals.
- • **Smooth Rides, Zero Compromise:** 60mm front suspension absorbs shocks, reducing fatigue and boosting comfort on rugged paths.
- • **Built to Last, Designed to Impress:** Durable 18-inch alloy steel frame balances strength and style for the modern rider.
- • **Conquer Every Trail with Precision:** 21-speed Shimano gears deliver effortless shifting and ultimate control on any terrain.

## Overview

The Firefox Tremor X 27.5D is a rugged, high-performance mountain bike designed for adult riders between 5'5" and 5'11". Featuring a durable 18-inch alloy steel frame, 21-speed Shimano gears, and 60mm front suspension, it offers smooth, controlled rides across diverse terrains. Equipped with responsive disc brakes and 27.5-inch wheels, this bike ensures safety and agility. Nearly fully assembled out of the box, it’s ideal for professionals seeking adventure without the hassle.

## Description

Tremor X 27.5D 21 Gear Mountain Bicycle for Adult | Blue | Front Suspension | Disc Brake | Steel Frame:18inch | Ideal Rider Height:5'5-5'11 | 98% Pre-Assembled | Ideal for Mens

## Features

- WHY FIREFOX TREMOR X: Take the road less traveled, or just enjoy the ride - Tremor X is built for riders who crave flexibility, performance, and fun. With its rugged design and reliable features, this all-terrain bike is perfect for casual rides, weekend adventures, or daily commutes
- Shock Absorbing 60mm Suspension: Soak up the bumps, own the ride. Enjoy a smoother ride, better control, increased comfort, reduced fatigue, and enhanced stability on any terrain
- Gear Up, Ride Free with 21 Speed Shimano Gears: Seamlessly shift through gears, conquer any terrain, and ride with precision and control. Enjoy effortless pedaling, increased speed, and an enhanced riding experience
- Grip It and Rip It with Comfortable Handlebar Grip: Ride in comfort and style, even on long distances. Enjoy reduced fatigue, improved control, and a more enjoyable riding experience

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Bike Type | Mountain Bike |
| Age Range (Description) | Adult |
| Brand | FIREFOX |
| Number of Speeds | 21 |
| Colour | Blue |
| Wheel Size | 70 Centimetres |
| Frame Material | Alloy Steel |
| Suspension Type | Front |
| Included Components | Tool Kit |
| Size | 27.5T |
| Brake Style | Disc |
| Item Weight | 17.6 Kilograms |
| Style | Modern |
| Model Name | Tremor X |
| Power Source | Pedal power |
| Wheel Material | Alloy Steel |
| Warranty Type | Limited |
| Maximum Weight Recommendation | 100 Kilograms |
| Assembly Required | Yes |
| Bicycle Gear Shifter Type | Drop Bar |
| Minimum User Height | 165 Centimetres |
| Derailleur Configuration | Front and Rear |
| Bicycle Drivetrain Type | Multi-speed |
| Manufacturer | Firefox Bikes Pvt Ltd, #2A-1001,10th floor, Two horizon center, Sec-43,DLF phase 5, Gurugram-122002, Firefox Bikes Pvt Ltd, #2A-1001,10th floor, Two horizon center, Sec-43,DLF phase 5, Gurugram-122002 |
| Frame Size | 18 Centimeters |
| Frame Type | Hard Tail |
| Department | Unisex-Adult |
| Manufacturer | Firefox Bikes Pvt Ltd, #2A-1001,10th floor, Two horizon center, Sec-43,DLF phase 5, Gurugram-122002 |
| ASIN | B0D7HTL67T |

## Product Details

- **Bike Type:** Mountain Bike
- **Age Range (Description):** Adult
- **Brand:** FIREFOX
- **Number of Speeds:** 21
- **Colour:** Blue

## Images

![FIREFOX Tremor X 27.5D 21 Gear Mountain Bicycle for Adult | Blue | Front Suspension | Disc Brake | Steel Frame:18inch | Ideal Rider Height:5'5-5'11 | 98% Pre-Assembled | Ideal for Mens - Image 1](https://m.media-amazon.com/images/I/612+HakJvlL.jpg)

## Available Options

This product comes in different **Colour, Size** options.

## Frequently Bought Together

- FIREFOX Tremor X 27.5 D Mountain Cycle (21 Gear, Blue) | Ideal for Mens | 98% Assembled Cycle
- GADGET DEALS Durable Quality Cycle Bell for Bicycle Ultra-Loud Cycle Horn Trending Kids Cycle Bell

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**Shop now:** [https://www.desertcart.ie/products/637981232-firefox-tremor-x-27-5d-21-gear-mountain-bicycle-adult](https://www.desertcart.ie/products/637981232-firefox-tremor-x-27-5d-21-gear-mountain-bicycle-adult)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-28*