Hycline R4FT electric bike & fat bike replacement fat tyre, sizes available in 20x4.0 / 26x4.0
Hycline 2-pack 20x4.0 inches electric bike and motorcycle tires with inner tubes and tire levers
Hycline 2-pack 26x4.0 inches electric bike and motorcycle tires with inner tubes and tire levers
R4FT Tire with slanted block tread pattern and text 'All-Terrain Control and Grip', ITS AGGRESSIVE ALL-TERRAIN TREAD FOR ENHANCED GRIP
Close-up of an electric bicycle tire with inflation instructions on a white background
A close-up of a black ebike's fat tire with tread and sidewall text reading 20x4.0 / 102-406, with overlaid size information showing diameter 20 inch and width 4.
A close-up of the Hycline's fat tire for ebikes with tread and sidewall text reading 26x4.0 /102-559, overlaid with size information: diameter 26 inch and width 4 inch
Heavy-duty fat tire for ebikes with unstoppable traction. Serrated shoulders, 3D locking sipes & self-cleaning mud bars deliver reliable grip for off-road & all-terrain e-bike rides.
Hycline's premium fat tire for ebikes with off-road tread, anti-puncture tech, smooth rolling, superior traction & long durability for all-terrain electric bike riding.
Close-up of a rugged off-road tire on a dirt bike or bicycle, splashing through mud on a forest trail. Text overlays read 'GRIP YOU CAN TRUST' and highlight wet weather grip and anti-slip traction.
Instructional graphic for mounting a TPU tire tube, featuring four numbered steps with illustrated hands and a bicycle wheel, alongside a smiling man holding a tire on the right. Text reads 'EASY INSTALLATION' and describes inflating, mounting, and pumping the tube.
Hycline R4FT electric bike & fat bike replacement fat tyre, sizes available in 20x4.0 / 26x4.0
Hycline 2-pack 20x4.0 inches electric bike and motorcycle tires with inner tubes and tire levers
Hycline 2-pack 26x4.0 inches electric bike and motorcycle tires with inner tubes and tire levers
R4FT Tire with slanted block tread pattern and text 'All-Terrain Control and Grip', ITS AGGRESSIVE ALL-TERRAIN TREAD FOR ENHANCED GRIP
Close-up of an electric bicycle tire with inflation instructions on a white background
A close-up of a black ebike's fat tire with tread and sidewall text reading 20x4.0 / 102-406, with overlaid size information showing diameter 20 inch and width 4.
A close-up of the Hycline's fat tire for ebikes with tread and sidewall text reading 26x4.0 /102-559, overlaid with size information: diameter 26 inch and width 4 inch
Heavy-duty fat tire for ebikes with unstoppable traction. Serrated shoulders, 3D locking sipes & self-cleaning mud bars deliver reliable grip for off-road & all-terrain e-bike rides.
Hycline's premium fat tire for ebikes with off-road tread, anti-puncture tech, smooth rolling, superior traction & long durability for all-terrain electric bike riding.
Close-up of a rugged off-road tire on a dirt bike or bicycle, splashing through mud on a forest trail. Text overlays read 'GRIP YOU CAN TRUST' and highlight wet weather grip and anti-slip traction.
Instructional graphic for mounting a TPU tire tube, featuring four numbered steps with illustrated hands and a bicycle wheel, alongside a smiling man holding a tire on the right. Text reads 'EASY INSTALLATION' and describes inflating, mounting, and pumping the tube.
UPC SIZE ETRTO PSI TPI BEAD COMPOUND UNIT WT (KG) NEED TUBE
635508713437 20×4.0 102-406 30 30 Folding Puncture-Resistant 2.00 Yes
635508715509 26×4.0 102-559 30 30 Folding Puncture-Resistant 2.25 Yes
All-terrain / Training / Commuting

Heavy-Duty Build – Great for rough terrain and high loads
R4FT is a folding fat bike & ebike tire with reinforced steel bead. It is a balanced tire for all terrains: hardpack, gravel or off road.
Folding Wire Steel Bead – Stronger, more durable structure
200% X Puncture resistance and durability of ordinary fat tires.
150% X Better shock absorption
120% X Low rolling-resistance Tread – Smooth and efficient rides
Terrain: hardpack/pavement/gravel/dirt/trails

Speed: ★★★★☆
Control: ★★★★☆
Puncture resistance: ★★★★★
Puncture resistance: ★★★★☆

SPECS

Description

R4FT is a heavy-duty folding wire bead tire for electric bikes and fat tire bikes.

Confidently gliding across sandy beaches, snowy trails, city streets, and gravel paths — all on a tire built to carry heavy loads, resist punctures, and deliver exceptional grip. R4FT is made of a premium rubber compound and features a deep diamond pattern that reduces friction by 40% when riding on pavement or hardpack. The regular raised knobs provide a strong grip even on muddy and wet surface.
With improved load-bearing capability, durable tread, and elevated puncture resistance, every ride becomes more reliable, more fun, and worry-free.


Best e-bike tires replacement for 20x4, 26x4 electric bike at Hycline Bike Shop
What advantages should a high-quality premium fat tire have?
20x4 and 26x4 fat bike fat tire dimensions and specifications
All-terrain off-road fat tire for ebikes with rugged tread for snow, city pavement, sand, mud & mountain trails. Durable e-bike fat tire delivers stable grip for every riding condition.
Heavy-duty off-road fat tire for ebikes, built for snow, city roads, sand, mud & mountain terrain. Rugged tread offers reliable traction for all e-bike rides.

Specification

Item No.: R4FT
Sidewall Color: Black
Tire size: 20x4 / 26x4 Inch
ETRTO: 102-406 / 102-559mm
Bead Type: Folding
Tread Type: Block knob
Max PSI: 30
Tube Valve Type: Schrader valve
Tube Valve Length: 32mm
Unit Weight (G): 2000 / 2200
harpack/gravel/dirt/trails

Real Photos

Real Photos

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Review

Warranty & Returns

Lightweight alloy frame with optimized center of gravity
Balanced geometry for stability and agility

“Tires take you farther, not define your destination.”

  • Free shipping for orders over $99

  • 7 U.S. warehouses nearest shipment

  • 30-day returns

  • 1-year warranty

Frame 1000007517

Go Further. Use Less.

Built for efficiency where it matters most: on real terrain, not just on paper.
Frame 1000007517

Power That Adapts to You

A modular system that flexes with your needs — not the other way around.
Frame 1000007517

Ready When You Are

Fast, reliable charging gets you back on the road in no time.

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Hycline R4FT electric bike & fat bike replacement fat tyre, sizes available in 20x4.0 / 26x4.0
Hycline 2-pack 20x4.0 inches electric bike and motorcycle tires with inner tubes and tire levers
Hycline 2-pack 26x4.0 inches electric bike and motorcycle tires with inner tubes and tire levers
R4FT Tire with slanted block tread pattern and text 'All-Terrain Control and Grip', ITS AGGRESSIVE ALL-TERRAIN TREAD FOR ENHANCED GRIP
Close-up of an electric bicycle tire with inflation instructions on a white background
A close-up of a black ebike's fat tire with tread and sidewall text reading 20x4.0 / 102-406, with overlaid size information showing diameter 20 inch and width 4.
A close-up of the Hycline's fat tire for ebikes with tread and sidewall text reading 26x4.0 /102-559, overlaid with size information: diameter 26 inch and width 4 inch
Heavy-duty fat tire for ebikes with unstoppable traction. Serrated shoulders, 3D locking sipes & self-cleaning mud bars deliver reliable grip for off-road & all-terrain e-bike rides.
Hycline's premium fat tire for ebikes with off-road tread, anti-puncture tech, smooth rolling, superior traction & long durability for all-terrain electric bike riding.
Close-up of a rugged off-road tire on a dirt bike or bicycle, splashing through mud on a forest trail. Text overlays read 'GRIP YOU CAN TRUST' and highlight wet weather grip and anti-slip traction.
Instructional graphic for mounting a TPU tire tube, featuring four numbered steps with illustrated hands and a bicycle wheel, alongside a smiling man holding a tire on the right. Text reads 'EASY INSTALLATION' and describes inflating, mounting, and pumping the tube.
Hycline R4FT electric bike & fat bike replacement fat tyre, sizes available in 20x4.0 / 26x4.0
Hycline 2-pack 20x4.0 inches electric bike and motorcycle tires with inner tubes and tire levers
Hycline 2-pack 26x4.0 inches electric bike and motorcycle tires with inner tubes and tire levers
R4FT Tire with slanted block tread pattern and text 'All-Terrain Control and Grip', ITS AGGRESSIVE ALL-TERRAIN TREAD FOR ENHANCED GRIP
Close-up of an electric bicycle tire with inflation instructions on a white background
A close-up of a black ebike's fat tire with tread and sidewall text reading 20x4.0 / 102-406, with overlaid size information showing diameter 20 inch and width 4.
A close-up of the Hycline's fat tire for ebikes with tread and sidewall text reading 26x4.0 /102-559, overlaid with size information: diameter 26 inch and width 4 inch
Heavy-duty fat tire for ebikes with unstoppable traction. Serrated shoulders, 3D locking sipes & self-cleaning mud bars deliver reliable grip for off-road & all-terrain e-bike rides.
Hycline's premium fat tire for ebikes with off-road tread, anti-puncture tech, smooth rolling, superior traction & long durability for all-terrain electric bike riding.
Close-up of a rugged off-road tire on a dirt bike or bicycle, splashing through mud on a forest trail. Text overlays read 'GRIP YOU CAN TRUST' and highlight wet weather grip and anti-slip traction.
Instructional graphic for mounting a TPU tire tube, featuring four numbered steps with illustrated hands and a bicycle wheel, alongside a smiling man holding a tire on the right. Text reads 'EASY INSTALLATION' and describes inflating, mounting, and pumping the tube.

R4FT

R4FT is a heavy-duty folding wire bead tire for electric bikes and fat tire bikes. Confidently gliding across sandy beaches, snowy trails, city streets, and gravel paths — all on a tire built to carry heavy loads, resist punctures, and deliver exceptional grip. R4FT is made of a premium rubber...
$52.99
Tax included. Shipping calculated at checkout.
{price}% OFF
Size
  • 20"×4"
  • 26"×4"
PSI
  • 30 PSI
Style
  • Buy a single tire
  • Buy 2-pack tires with tubes
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