NDX Vs. Tweel

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Zero Turn Mower Tires

Your Guide to Buying Premium Airless Mower Tires for Zero-Turn Mowers.

Brought to you by Farm & Trail, your trusted independent retailer.

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We help you compare leading airless tire solutions like Michelin® Tweel® and NDX® NeverDown™—and find the perfect fit for your mower.

Find the perfect zero turn mower tires — faster.At ZeroTurnMowerTires.com, we compare leading airless solutions like Michelin® Tweel® and NDX® NeverDown™, plus traditional tire options, to help you choose the best fit for your mower. Explore side-by-side comparisons, fitment tips, and expert advice — and when you're ready, shop trusted brands through Farm & Trail.

Meet the Leaders in Airless Tire Technology

Michelin Tweel

Tweel Info

OTR NDX Neverdown

NDX Info

Quick Comparison

Airless vs Pneumatic: How the Three Options Compare

Every zero-turn tire decision comes down to three options: the Michelin X Tweel, the OTR NDX Grassmaster, or staying with pneumatic (air-filled) tires. Straight comparison, no scores:

Attribute	Michelin X Tweel	NDX Grassmaster	Traditional Pneumatic
Flat-free	Yes - airless radial, no air chamber	Yes - airless bias-ply casing	No - punctures, slow leaks, bead failures
Construction	One-piece unit: steel hub, poly-resin spokes, bonded tread band	Airless bias-ply tire with sidewalls on a steel wheel	Air-filled tire on a wheel
Positions covered	Front casters and rear drive	Rear drive (14 and 16 inch wheels)	All positions
Ride	Firm but consistent; spokes absorb impacts and add side-hill stability	Closer to a conventional tire feel; sidewalls flex like the tire it replaces	Softest when correctly inflated; degrades as pressure drops
Maintenance	None: no pressure checks, no sealant, no bead service	None: no inflation to maintain	Pressure checks, plugs, sealant, bead reseating
Wear life	Michelin-rated at 2 to 3x a comparable pneumatic	See product listing	Baseline
Cost per rear tire	From $670.00	From $496.99	Lowest up front; replaced most often
Cut height consistency	Constant: hub height never changes	Constant: no pressure loss	Varies with inflation; underinflation scallops the cut
Install	Bolt-on, replaces tire and wheel assembly	Bolt-on, direct replacement assembly	Standard
Best for	Commercial crews, debris-prone ground, full airless conversion front and rear	Airless rears at the lowest cost per corner	Clean flat lawns, low hours, minimum upfront cost

Deciding between the two airless options? See the detailed Tweel vs Grassmaster comparison below with prices by size, or the full comparison at Farm & Trail.

The information above is provided as a general guide based on manufacturer specifications and typical usage scenarios. Actual performance, durability, and ride quality may vary depending on equipment type, mowing conditions, terrain, and maintenance practices. Always consult your mower’s manual and specific product documentation for detailed compatibility and installation requirements.

Airless Mower Tire FAQ

Real questions from mower owners, answered from the manufacturers' own published documentation: Michelin's Tweel FAQ and Warranty Guide, and OTR Wheel Engineering's NDX product pages. Where a number is a manufacturer claim, it is attributed as one.

Choosing and Fitting

Will a Tweel fit my mower?

Only if the bolt pattern and offset match. Because the Tweel incorporates the hub into the design, Michelin's guidance is to know your vehicle's bolt pattern and offset before purchasing, and to confirm with a dealer or the fitment guide. Use the Farm & Trail Tweel fitment guide or call 877-203-4939 with your mower model and deck size.

Source: Michelin Tweel FAQ

Can I put a Tweel on my existing rims?

No. Per Michelin, the Tweel is a combination of tire and wheel in one unit; it replaces the entire tire, wheel, and valve assembly. You unbolt the old assembly and bolt the Tweel on.

Source: Michelin Tweel FAQ

What if it does not fit after I buy it?

Michelin's policy: if you are not 100 percent satisfied, return the Tweel with the original sales receipt to the place of purchase within 30 days. Farm & Trail's return policy applies to purchases made there; see the return policy.

Source: Michelin Tweel FAQ; Farm & Trail policy

Are these sold one at a time or in pairs?

Both the Michelin Tweel and the NDX Grassmaster are sold and priced per individual tire-and-wheel assembly at Farm & Trail unless a listing says otherwise. Compare per-unit prices, with shipping included, when cross-shopping.

Source: Farm & Trail catalog

Living With Tweels

Do Tweels ride rough?

Michelin's position is the opposite: the poly-resin spokes give low vertical stiffness, absorbing energy and returning it, and Michelin lists a better ride than pneumatics, better side-hill stability, and lower, more uniform contact pressure among the Tweel's advantages. The ride is different from air, but by design it is consistent for the life of the unit because the contact pressure is fixed and never changes with a slow leak.

Source: Michelin Tweel FAQ

Do Tweels work in cold weather?

Per Michelin, ambient temperature does not affect performance: the polyurethane used in the spokes is stable across temperatures and has shown robust performance from -30F to 100F.

Source: Michelin Tweel FAQ

My mower sits all winter. Will the Tweels flat-spot?

Michelin says a flat spot can potentially occur after extended storage, and that it dissipates after riding approximately 100 yards. It is temporary, not damage.

Source: Michelin Tweel FAQ

Is there anything to do after installing Tweels?

Two things, per Michelin: after 8 hours of break-in, re-torque the wheel hardware to proper values in an x-pattern; and level the mower deck after installation, then check it again after roughly the first month of use. Beyond that, the service interval is the same as pneumatic tires.

Source: Michelin Tweel FAQ

What happens if some spokes get cut or torn?

Spoke damage from impacts or cuts does not end the Tweel. Per Michelin, the unit remains useful with up to 20 percent of spokes damaged, and a certified Tweel technician can arrest a spoke crack by blunting the crack tip, potentially doubling the life of that spoke. Warranty covers more than 5 completely broken spokes, more than 2 consecutive broken spokes, or separation deeper than 2 inches.

Source: Michelin Tweel FAQ and Warranty Guide

Can I replace just one Tweel, or do they have to match?

Michelin's guidance for pairing a new Tweel with a worn one on the same axle: keep the height difference within 3 percent, and consult your OEM specifications. In practice, that means a lightly worn partner is fine and a heavily worn one is not.

Source: Michelin Tweel FAQ

How long do Tweels last, and do they age out like car tires?

Michelin states small Turf Tweels are lasting on average 2 to 3 times longer than their pneumatic counterparts, and that the 10-year replacement recommendation for passenger tires does not apply to Tweels; the materials differ, so monitor condition and consult a dealer if performance or appearance changes. Every Tweel carries a date code showing its week and year of production.

Source: Michelin Tweel FAQ

What warranty do Tweels have?

A 3-year time-based prorated limited warranty against workmanship and material defects, for the life of the original usable tread (down to 4/32 in remaining) or 3 years from purchase, whichever comes first. Impact damage, cuts, and overload are excluded. Keep the invoice; the serial barcode on the interior hub surface is the key identifier for a claim.

Source: Michelin X Tweel Warranty Guide

NDX Grassmaster

How is the NDX Grassmaster different from a Tweel?

The NDX is a complete airless tire and wheel assembly using OTR's patent-pending multilayer bias construction with engineered structural supports and a deflection management system, so it mounts and behaves like the conventional assembly it replaces. It covers rear drive positions; the Tweel line also covers front casters. Full breakdown in the comparison section and the detailed comparison at Farm & Trail.

Source: OTR Wheel Engineering

How long does an NDX last?

OTR's claim is specific: up to 2 times longer than other airless tire options, including under heavy loads and after sustaining damage. Note the comparison is against other airless and run-flat tires, not against pneumatics.

Source: OTR Wheel Engineering

Does the NDX have a warranty?

OTR's authorized distributors list a 3-year, unlimited-hour warranty on the NDX line. Confirm current terms at time of purchase.

Source: OTR authorized distributor documentation

Is the NDX gentle on lawns?

The Grass Master tread is OTR's turf pattern, with an S-shaped design that optimizes ground contact for traction while staying gentle on lawns, including during sharp zero-turn maneuvers and on slopes. OTR also states the deflection management system produces a ride equal to or better than a pneumatic tire.

Source: OTR Wheel Engineering

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Are Airless Tires Right for You?

Airless tires like the Michelin® Tweel® and NDX® NeverDown™ can eliminate flats, reduce downtime, and extend tire life — but they’re not for every mower or every property.If you deal with frequent flats, mow rough ground, or run commercial equipment daily, airless tires are a smart investment. If you mow a smaller, smoother lawn and rarely get flats, sticking with traditional pneumatic tires might make more sense.Need help deciding? We're happy to assist.

877-203-4939

Why Choose Farm & Trail?

Airless Tire Experts: We carry both Michelin® Tweels and NDX® NeverDown™ flat-free solutions.
Top Brands: Replacement tires for Toro®, Exmark®, John Deere®, Kubota®, and more.
Fast U.S. Shipping: Get back to work quickly — no long lead times.
Proven Durability: Our tires selections are tested for maximum lifespan and rugged use.

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Shop Zero Turn Mower Tires
from Top Brands at Farm & Trail

When it comes to zero turn mower performance, your tires are everything. Flat tires mean downtime, lost productivity, and frustration — especially during mowing season.At Farm & Trail, we offer a curated selection of high-performance airless zero turn mower tires, including traditional turf tires and the latest flat-free airless options. We proudly carry trusted brands like Michelin® Tweel®, the original airless radial solution for commercial mowers, and NDX® NeverDown™, an innovative solid-core alternative built for long-term reliability.Whether you're maintaining a few acres or managing a commercial fleet, upgrading to airless tires like Tweels or NeverDown options can mean fewer interruptions and better results. We stock popular sizes including 24x12N12, 26x12N12, and 18x8.5-8 and others.Find replacement tires for leading mower brands like Toro®, John Deere®, Kubota®, Exmark®, and more — with fast shipping, competitive pricing, and expert support from Farm & Trail.Ready to upgrade your mower? Browse our full selection of flat-free and pneumatic zero turn mower tires today!

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Helpful Links

25913 26x12 N12 Michelin Tweel on Kubota ZD1211 Mower

Have Questions About Upgrading?

Need help choosing the right size or brand? Fill out the form below or send us an email at [email protected]. Our Farm & Trail team is here to help you find the perfect tires.

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Michelin X® Tweel™ Turf Drive Tires

Michelin X Tweel Turf airless radial tires completely eliminate the common problems of unseated beads and flat tires on zero turn radius mowers. They have a consistent hub height which helps ensure the mower deck produces an even cut, while their full-width poly-resin spokes provide excellent lateral stability for outstanding side hill performance. The spokes also help dampen the ride for enhanced operator comfort, especially when navigating over curbs and other bumps. Equally important, high performance compounds and an efficient contact patch are designed to provide a long wear life that is two to three times that of a pneumatic tire at equal tread depth.No Maintenance
The Michelin X Tweel Turf airless radial tire is one single unit, replacing the current tire/wheel/valve assembly. As a result once they are bolted on, there is no air pressure to maintain, and the common problems of unseated beads and flat tires are completely eliminated.No Compromise
The Michelin X Tweel Turf airless radial tire has a consistent hub height which helps ensure the mower deck produces an even cut. The full-width poly-resin spokes provide excellent lateral stability for outstanding side hill performance, while the unique design of the spokes helps dampen the ride for enhanced operator comfort, even when navigating over curbs and other bumps. High performance compounds and an efficient contact patch are designed to provide a long wear life that is two to three times that of a pneumatic tire at equal tread depth.No Downtime
The Michelin X Tweel Turf product is designed to perform like a pneumatic tire, but without the risk and costly downtime associated with flat tires and unseated beads.

Michelin Tweel Fitment Guide

Mower Tweel Finder

Loading Fitment Database...

Shop Tweels

Key Features

Tread design optimized to minimize turf damage while providing excellent traction and a long service life.
Zero degree belts (under the tread) and proprietary design provide great lateral stiffness, while resisting damage and absorbing impacts.
Michelin’s proprietary Comp10 Cable™ forms a semi-rigid “shear beam”, and allows the load to hang from the top.
Heavy gauge steel hub designed to fit on a variety of popular mowers.
High strength, poly-resin spokes carry the load and absorb impacts, help dampen the ride, and provide a unique energy transfer that reduces pneumatic bounce.

Available Sizes for Most Mowers

MSPN	Size	Max Load (lbs.)	Wheel Offset (in.)	Bolt Pattern
MC-78245	18x8.5N10	705	-0.4	4x4 in.
MC-37968	22x11N12	529	-1.1	4x4 in.
MC-47260	22x11N12 XL	727	-1.375	5x4.5 in.
MC-08755	22x11N12 XL	727	-1.1	4x4 in.
MC-22487	24x12N12	750	0.9	4x4 in.
MC-50357	24x12N12	750	-0.75	4x4 in.
MC-77185	24x12N12	750	-2.2	4x4 in.
MC-54411	24x12N12	750	-1.3	5x4.5 in.
MC-14365	24x12N12	750	0.67	5x4.5 in.
MC-59498*	24x12N12	750	-1.3	5x4.5 in.
MC-17774*	24x12N12	750	1.7	10x8.5 in.
MC-06358	24x12N12 XL	868	-2.2	4x4 in.
MC-23039*	24x12N12 XL	868	-1.3	5x4.5 in.
MC-40453	24x12N12 XL	868	-0.75	4x4 in.
MC-07097*	24x12N12 XL	868	0.4	10x215 mm
MC-79478*	24x12N12 XL	868	0.67	5x4.5 in.
MC-08189	26x12N12 XL	1031	-0.87	4x4 in.
MC-47623	26x12N12 XL	1031	-2.2	4x4 in.
MC-25913	26x12N12 XL	1031	-2.2	5x4.5 in.
MC-25926	26x12N12 XL	1031	0.67	5x4.5 in.
MC-75935*	26x12N12 XL	1031	1.7	10x8.5 in.

* Not currently stocked at Farm & Trail. Call 877-203-4939 for availability, or see the full Tweel Turf catalog.

Popular Fitments

NDX AIR-LESS GRASS MASTER ASSEMBLY

The NDX NEVER DOWN TIRE ASSEMBLY for MOWERS is an essential upgrade for your lawn equipment. These tires never go flat which eliminates down time and loss of productivity. This puncture-resistant and durable tire assembly is designed to keep your mower rolling, even in challenging terrain. Whether you're tackling a large lawn or maintaining commercial landscapes, these high-quality tires ensure reliable performance. Easy to install and built to last, this tire assembly saves you time and money on maintenance. Say goodbye to flat tires and downtime, and hello to hassle-free mowing. Keep your outdoor equipment in top shape with this dependable NDX NEVER DOWN TIRE ASSEMBLY.

Shop NDX Neverdown

Key Features

Wide footprint and turf-friendly tread design provide excellent traction while minimizing turf disturbance, rutting, and surface damage.
Heavy-duty bias-ply casing improves sidewall strength, puncture resistance, and overall tire durability in commercial mowing applications.
Flat tread profile offers maximum ground contact for improved load distribution, traction, and a smoother ride over uneven terrain.
Extra-strong sidewalls resist impacts and curb damage, ensuring longer service life under heavy-duty commercial use.
Designed to carry the weight of larger zero-turn mowers and commercial equipment without sacrificing performance or turf protection.

Available Sizes for Most Mowers

BAD BOY	REAR TIRE SIZE	ITEM NO
RENEGADE DIESEL 6100, GAS 6100, 7200, ROGUE 5400, 6100, 7200	26X12.00-16	OR-NDXGM14
OUTLAW 5400, 6100, OUTLAW XP 5400, 6100, 7200, OUTLAW EXTREME 6100 & 7200, REBEL 5400, 6100, 7200	24X12.00-14	OR-NDXGM9
MAVERICK 5400, 6000	23X10.50-14	OR-NDXGM21
BOBCAT
PREDATOR-PRO 7000 9997001, 9997002, 9997003, 9997004	26X12.00-16	OR-NDXGM13
PROCAT 6000MX 9996005 & 9996006	24X12.00-14	OR-NDXGM7
BUSH HOG
HDZ3161FX3, HDZ3361ECV3, HDZ3173FX3, HDZ3373ECV3, HDZ2761CV2, HDZ2773CV2, HDZ3161FX2, HDZ3173FX2, HDZ3361ECV2, HDZ3373ECV2	24X12.00-14	OR-NDXGM9
COUNTRY CLIPPER
BOSS XL 60" & 72" ZTR	26X12.00-16	OR-NDXGM16
CHARGER 52" & 60" ZTR	24X12.00-14	OR-NDXGM9
CUB CADET
PRO Z 900 Z TURN & 960 L KW 60" PRO Z 972 S KW & L KW 72"	26X12.00-16	OR-NDXGM12
ULTIMA ZTX6 48" & 54"	24X12.00-14	OR-NDXGM7
ULTIMA ZTX6 60", PRO Z 960 S KW 60", PRO Z 760 & 772 60", PRO Z 560 L KW & S KW 60", PRO Z 554 L KW & S KW 54", PRO Z 500 Z TURN 54" & 548 L KW 48"	24X12.00-14	OR-NDXGM6
DIXIE CHOPPER
EAGLE 2754KW, 2754KOE, 2760KW, 2760KOE, EAGLE HP 3160KW, 3160KOE, 3566KW, 3366KOE, 3572KW, 3372KOE, CLASSIC 2750KW, 2760KW, 3160KW, 3160KOE, 3572KW, 3572KOE, 3672BR, XCALIBER 3160KW, 3360KOE, 3366KOE, 3366KW, 3574KW, 3574KOE, 3674BR	26X12.00-16	OR-NDXGM13
EXMARK
LAZER Z DIESEL	26X12.00-16	OR-NDXGM15
LAZER Z AS 48", 52", 60" & 72" & LAZER Z S-SERIES 72"	24X12.00-14	OR-NDXGM7
FERRIS
F320Z, IS 3200 Z SERIES	26X12.00-16	OR-NDXGM16
F160Z & IS 2100 Z SERIES	24X9.50-14	OR-NDXGM3
F210Z, IS 2600 Z SERIES	24X12.00-14	OR-NDXGM9
GRASSHOPPER
MIDMOUNT 333G5 61" & 72"	26X12.00-16	OR-NDXGM14
GRAVELY
PRO TURN 200 & 400 60" & 72"	24X12.00-14	OR-NDXGM8
HUSQVARNA
Z560X, Z560 60" & Z572X 72"	24X12.00-14	OR-NDXGM7
HUSTLER
SUPER Z HYPERDRIVE 60" & SUPER 88	26X12.00-16	OR-NDXGM17
SUPER Z HYPERDRIVE 66" & 72", SUPER 104	26X12.00-16	OR-NDXGM16
SUPER Z 54"	24X9.50-14	OR-NDXGM5
X-ONE 52" & 54"	24X9.50-14	OR-NDXGM4
SUPER Z 60", 66" & 72", HUSTLER Z DIESEL 60" & 72"	24X12.00-14	OR-NDXGM10
X-ONE 60" & 72"	24X12.00-14	OR-NDXGM9
JOHN DEERE
ZTRAK Z997 54" & 60"	26X12.00-16	OR-NDXGM13
ZTRAK Z740R, Z915E 54" & 60", Z920M, Z925M 54" & 60", Z930M, Z930R 54" & 60", Z950M, Z950R, Z970R 60", Z994 54", 60" & 72"	24X12.00-14	OR-NDXGM7
ZTRAK Z950M, Z950R, Z970R 72"	24X12.00-14	OR-NDXGM6
KIOTI
CS2210 & CS2510	26X12.00-16	OR-NDXGM16
KUBOTA
ZD1211-60, ZD1211R-60R, ZD1211L-72, ZD1211RL-72R, ZD1511RL-60R, ZD1511LF-72, ZD1511RLF-72R, ZG327PA-60, ZG327RPA-60	26X12.00-16	OR-NDXGM14
Z751KWI-48	24X9.50-14	OR-NDXGM4
Z421KWT-60 (Z400)	24X12.00-14	OR-NDXGM7
Z725KH-60, Z726XKW-60, Z725KH-2-60, Z726XKW-2-60, Z781KWTI-60 & ZD1021-60	24X12.00-14	OR-NDXGM9
SCAG
TURF TIGER II 61" & 72"	26X12.00-16	OR-NDXGM12
V-RIDE II 48" & 52", TIGER CAT & WILD CAT 52"	24X9.50-14	OR-NDXGM1
TIGER CAT & WILD CAT 48", TIGER CAT II 52", TIGER CAT II STCII-52V	24X9.50-14	OR-NDXGM2
V-RIDE II 61", WILDCAT, TURF TIGER, SABRE TOOTH 48"-72", TURF TIGER SMT-61V & 72V, TIGER CAT II STCII-61V, PATRIOT 52" & 61"	24X12.00-14	OR-NDXGM6
CHEETAH 61"-72"	24X12.00-14	OR-NDXGM9
SPARTAN
RT PRO 54" & 61", RT HD 61", SRT PRO 61", SRT HD 54" & 61", SRT XD 61" & 72"	24X12.00-14	OR-NDXGM9
TORO
Z MASTER 60" & 72"	24X12.00-14	OR-NDXGM7
WRIGHT
MMZ 52"	24X9.50-14	OR-NDXGM3
MMZ 61", ZTO 52" & 61"	24X12.00-14	OR-NDXGM9

Michelin Tweel vs NDX Grassmaster: Which Airless Tire?

Last updated: August 2, 2026

Both eliminate flats. They cover different positions at different prices. The one-minute version:

Michelin X Tweel

One-piece airless unit: steel hub, poly-resin spokes, bonded tread
Covers front casters and rear drive positions
Michelin-rated at 2 to 3x the wear life of a comparable pneumatic
Rear sizes from $670.00; casters from $199.00

NDX Grassmaster

Airless tire with sidewalls on a steel wheel, mounts like the assembly it replaces
Covers rear drive positions (14 and 16 inch wheels)
Grass Master or Zero T II tread options
Rear sizes from $496.99, roughly $110 to $170 less per tire than the comparable Tweel

Position / Size Class	Michelin Tweel	NDX Grassmaster
Front caster	13x6.5N6 from $199.00; 15x6N6 from $249.00	Not offered
Rear, 23 to 24 in light	Not offered	23x10.50-14 and 24x9.50-14 from $496.99
Rear, 24x12 class	24x12N12 from $670.00	24x12.00-14 from $559.99
Rear, 26x12 class	26x12N12 XL from $799.99	26x12.00-16 from $629.99

Rule of thumb: full airless conversion front and rear, or a machine on Michelin's OEM list, go Tweel. Lowest cost per corner on the rears with conventional mounting, go NDX. Both are sold per tire with free shipping in the contiguous US.

Read the Full Comparison at Farm & Trail

Or go straight to the catalogs: Michelin Tweel Turf · NDX Grassmaster · Tweel fitment guide

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