Kenda 140/80-18 K774 IBEX Motocross Rear Tyre – Grip Where Others Spin

The Kenda IBEX 140/80-18 Rear Tyre is the ultimate rear tyre for riders tackling extreme off-road, enduro, and hard enduro terrain. Built with a gummy rubber compound, this tyre is engineered to grip rocks, logs, roots, and other technical features like no other. Whether you’re riding a big-bore enduro bike or a high-torque e-moto, the IBEX delivers the hook-up and flexibility you need to crawl, climb, and conquer.

Please note: This tyre is not designed for F.I.M. enduro specifications, and is intended for non-homologated off-road use.

🏋️♂️ Weight: ~7.25 kg (15.98 lbs)

✅ A large-profile, soft compound rear tyre designed for maximum traction in the most demanding conditions. Ideal for 250–500cc enduro bikes, electric dirt bikes like the Sur-Ron Storm Bee or Ultra Bee (18” setup), and hard enduro race builds.

🗝️ Key Features:

✅ Super Soft Gummy Compound – Designed for extreme terrain with trials-like grip, especially on wet rocks, roots, and logs.

✅ Deep, Flexible Knobs – Large tread blocks flex and conform to terrain for superior climbing traction and self-cleaning in muddy conditions.

✅ Extreme Terrain Bias Ply – Soft carcass construction allows the tyre to wrap around obstacles while absorbing impacts and resisting deflection.

✅ Massive Footprint – The wide 140/80-18 profile offers superb ground contact, improving drive, stability, and braking control on steep climbs.

✅ Rim & Mousse Compatible – Performs best with low pressures using tubes, rim locks, or mousse inserts for optimal grip and durability.

✅ Directional Design – Engineered for forward drive with predictable braking bite, even when descending technical singletrack.

⚠️ Not F.I.M. compliant — tread spacing and compound are built for performance, not regulation.

🏍️ Applications:

✅ Hard Enduro & Technical Trail Riding
✅ High-Torque E-Moto Setups
✅ Extreme Rock & Root Terrain
✅ Low-Speed Crawling & Climbing Performance

🛠️ Technical Table:

🏁 Kenda IBEX 140/80-18 66M Rear Tyre – Compatibility Table

⚡️ Compatibility with E-Motos

🧠 How It Performs on E-Moto & Enduro Builds

✅ Strengths

• Exceptional traction in slick, technical terrain

• Flexes around rocks and logs for near-trials level grip

• Handles e-moto torque without losing drive

• Soft compound creates maximum confidence on climbs

⚠️ Considerations

• Soft rubber may wear faster on hardpack

• Slightly heavier and taller than standard trail tyres

• Not for F.I.M. enduro events or street use (NHS)

🏁 Terrain Performance on Trail / E-Moto

🔧 Setup Tips

Recommended PSI:

• 8–10 PSI for hard enduro (mousse or heavy-duty tubes recommended)

• 11–13 PSI for mixed trail and technical terrain

Pair With:

• Kenda Equilibrium 90/90-21 or

• K777F Washougal II front tyre for technical enduro setups

✅ Best For:

• Hard enduro, rock gardens, extreme terrain

• Riders seeking traction-first performance

• E-moto trail and mountain riders needing max grip

❌ Not Ideal For:

• Road use (NHS – not street legal)

• High-speed hardpack or motocross tracks

• Riders prioritising long tread life over traction

💡 Pro Tip:

Combine with a front mousse and low PSI to create a tractor-like feel — perfect for navigating the nastiest sections of trail, where momentum is minimal but control is everything.

🏆 Grip Like a Goat:

The Kenda IBEX 140/80-18 is your go-to rear tyre when conditions are at their worst — wet, steep, technical, and relentless. Add it to your build and ride terrain others fear.