Tyre & Tube

Overview

The CST BFT 20 x 4.0 fat tyre and matching inner tube options are suitable for compatible fat tyre e-bikes, including Kristall Y20, GW20, RX20, Mamba Sahara, and other e-bikes using 20 x 4.0 tyres.

Stock note: If the CST outer tyre is unavailable, we may provide an Arisun 20 x 4.0 tyre as a free upgrade. The upgraded tyre offers improved durability and lower rolling resistance.

Specifications

Features

• Designed for 20 x 4.0 fat tyre e-bikes.
• Suitable for mixed urban and light off-road riding conditions.
• Tread pattern helps with grip, rolling efficiency and water dispersion.
• Replacement options let you choose only the part you need.

Take your Mamba Sahara to the next level with the ARISUN 20x4 Fat Tyre—built tough to handle everything your ride throws at it. Whether you're cruising city streets or powering through rugged terrain, this tyre is engineered to deliver maximum performance and control.

Smooth Rides, Anytime, Anywhere
The 20x4 tubular construction absorbs bumps and cracks with ease, allowing your Mamba Sahara to glide smoothly over all types of surfaces.

All-Terrain Traction
From wet asphalt to loose gravel, the knobby, semi-slick, and inverted tread pattern gives you the grip you need to stay confidently in control—no matter the conditions.

Precision Fit for Mamba Sahara
Specifically selected for the Mamba Sahara, this ARISUN tyre offers seamless compatibility, enhancing your ride’s balance between power and maneuverability.

Built to Perform
With a 4-inch width and lightweight 1,678g design, it improves stability without sacrificing speed, elevating your overall riding experience.

Upgrade Your Ride
Don’t just ride—dominate. The ARISUN Fat Tyre doesn’t just fit your Mamba Sahara, it transforms it into an all-terrain machine ready for your next adventure.

The CST Tyre BFT 26 x 4.0 Fat Tyre Black is a high-performance tire designed for trail and freeride use. With its beefed up construction and meaty center and side knobs, it excels in loose, medium, mud, and wet conditions. Recommended for front or rear installation, this tire can handle up to 65 PSI and weighs only 1422g. Upgrade your bike with the BFT and conquer any terrain with ease.

This product is compatible with Kristall KS26, Mamba TP26, and all e-bikes using 26*4 size tyres.

Specification:

Features:

1. Lightweight design, has a very good orientation and handling. Can be used under different terrain and conditions, more bumps can make good contact with the ground so that it can catch the road well   

2. Using standard rubber, the tires are  lighter, and bear more pressure.   

3. The surface design of the tire reduces the rolling resistance and improves the drainage performance.

The CST 27.5 x 2.4 MTB Tyre is designed for riders who need a reliable balance of grip, durability, and stability across a wide range of riding conditions. Ideal for electric mountain bikes and traditional MTBs, this tyre performs well on paved roads, gravel paths, trails, and light off-road terrain.

🔧 Specifications

• Brand: CST

• Tyre Size: 27.5 x 2.4 inch

• Wheel Diameter: 27.5”

• Tyre Width: 2.4”

• Type: Mountain Bike (MTB) Tyre

• Position: Front or Rear (universal fit)

🚴 Compatibility

• ✔ Mamba Antidote (27.5” version)

• ✔ Mamba DS / Double Strike (27.5” version)

• ✔ All mountain bikes and e-bikes using 27.5 x 2.4 inch tyres

⭐ Key Features

• High-traction tread pattern for confident cornering and braking

• Durable rubber compound for extended tyre life

• Stable and predictable handling, suitable for both on-road and off-road riding

• E-bike friendly, capable of handling higher torque and weight

📦 What’s Included

• 1 × CST 27.5 x 2.4 MTB Tyre

The CST 29 x 2.4 MTB Tyre is designed for riders who need a reliable balance of grip, durability, and stability across a wide range of riding conditions. Ideal for electric mountain bikes and traditional MTBs, this tyre performs well on paved roads, gravel paths, trails, and light off-road terrain.

🔧 Specifications

• Brand: CST

• Tyre Size: 29 x 2.4 inch

• Wheel Diameter: 29”

• Tyre Width: 2.4”

• Type: Mountain Bike (MTB) Tyre

• Position: Front or Rear (universal fit)

🚴 Compatibility

• ✔ Mamba Antidote (29” version)

• ✔ Mamba DS / Double Strike (29” version)

• ✔ All mountain bikes and e-bikes using 29 x 2.4 inch tyres

⭐ Key Features

• High-traction tread pattern for confident cornering and braking

• Durable rubber compound for extended tyre life

• Stable and predictable handling, suitable for both on-road and off-road riding

• E-bike friendly, capable of handling higher torque and weight

📦 What’s Included

• 1 × CST 29 x 2.4 MTB Tyre

High-quality MTB inner tube designed for mountain bikes and e-bikes.
Compatible with tyre widths from 2.15 to 2.4 inches, suitable for both 27.5” and 29” wheels.

🔧 Specifications

• Type: MTB Inner Tube

• Valve: Schrader (Auto Valve)

• Wheel Sizes: 27.5” / 29”

• Tyre Width Compatibility: 2.15 – 2.4 inch

⭐ Features

• Durable rubber construction

• Reliable air retention

• Easy to install

• Suitable for MTB and e-bike use

📦 Package Includes

• 1 × MTB Inner Tube

The CST 26 x 2.1 MTB Tyre is engineered for riders who demand strong puncture protection and long-lasting durability.
This model features EPS (Puncture-Resistant Technology) to help reduce flats caused by thorns, glass, and road debris, while DUAL (Multi-Compound Rubber Technology) improves grip and extends tyre life.

Ideal for commuting, trail riding, and mixed terrain use, the tyre delivers reliable, stable performance in everyday riding conditions.

🔧 Specifications

• Model: CST

• Size: 26 x 2.1 inch

• Type: MTB Tyre

• Position: Front or Rear

⭐ Key Features

• EPS puncture-resistant layer for enhanced flat protection

• DUAL compound rubber for improved traction and durability

• Robust tread design for stable and predictable handling

• Suitable for mountain bikes and e-bikes

📦 Package Includes

• 1 × CST 26 x 2.1 MTB Tyre