NDX Grassmaster Airless Mower Tire Assembly

NDX Neverdown
Airless Tire & Wheel

Sold as a complete tire and wheel assembly. Correct bolt pattern and offset for your mower, ready to bolt on. No mounting, no balancing, no air, ever.

Patent-pending airless construction, rated at 0 psi. It looks and drives like a conventional tire, but there is no air in it to lose, so it cannot go flat and your crew keeps mowing.

ZEROFlats, ever

2XLife vs other airless

3-YEARWarranty

0 PSINever needs air

What Airless Actually Means

An NDX is not a tire you mount on a wheel. It is a single engineered assembly: tire and wheel, built together, with no air inside. It arrives matched to your mower's bolt pattern and offset and goes straight on with a wrench.

OTR also rates the NDX to cut fuel use by up to 10 percent against conventional tire options, and to last up to twice as long as other airless and run-flat options. Fuel economy is a function of application and terrain.

One-piece assembly Tire and wheel included, with OEM-approved tread. A bolt-on replacement for your stock tire and wheel. Nothing to mount, nothing to balance.

Cannot go flat No air to lose. OTR runs these under extreme load with a one-inch hole cut through the sidewall.

No maintenance, no pressure checks Nothing to inflate, nothing to monitor. It holds its profile at all times.

Easier on turf Minimizes turf damage even on sharp turns and slopes, so you are not repairing what you just cut.

Wide contact patch Improves traction, stability and braking. Low deflection keeps ground clearance safe even under heavy load.

Common Questions

It uses OTR's patent-pending airless construction, rated at 0 psi. The design holds the same profile as a pneumatic tire with no air required, so ground clearance stays safe at all times. OTR demonstrates an NDX carrying extreme loads with a one-inch hole cut through its sidewall, and it keeps running.

No. There is no air in it to lose, so there is nothing to go flat. Run over a nail, a screw or jobsite debris and you keep mowing. That is the whole product: no more flat tires, zero downtime, 100 percent uptime.

No. OTR rates the ride as comfortable, comparable to or better than pneumatic tires, absorbing bumps and vibration as well or better. A wide contact patch improves traction, stability and braking, and the low deflection keeps ground clearance consistent.

No. Every NDX is a complete tire and wheel assembly, sold as one piece with the correct bolt pattern and offset for your mower. It is a bolt-on replacement for your stock tire and wheel. Nothing to mount, nothing to balance, no tire shop.

OTR puts a flat at 300 dollars per incident in lost productivity and labor, and about two hours of downtime each. At one flat every other week that is 26 flats and 7,800 dollars in opportunity cost a year. On an average four-mower fleet, OTR figures 31,200 dollars lost annually. Costs vary by region and application.

OTR backs the NDX with a three-year warranty, and rates it to last up to twice as long as other airless and run-flat options on the market.

OR-NDX2310501444N1GM

Item In Cart -5%

NDX 23X10.50-14 AIRLESS TIRE & WHEEL (4x4 / -1.00) GRASS MASTER

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~~$496.99~~ $472.14

NDX NeverdownAirless Tire & Wheel

What a flatactually costs

What Airless Actually Means

Common Questions

NDX Neverdown
Airless Tire & Wheel