Bora Wheel Spacers 1025R | Precision-Engineered Tractor Spacers
Our Bora wheel spacers 1025R are precision-machined from billet aluminum to deliver the exact fit John Deere 1025R owners need for loader work, stability, and tire clearance. Each spacer is engineered with a hub-centric design that eliminates vibration and maintains factory wheel bearing geometry.
We built these spacers with forged 6061-T6 aluminum and anodized finish to resist corrosion in harsh field conditions. The 1.5-inch profile provides the optimal track width increase for ballast weight, R4 tire upgrades, and front-end loader operation without compromising turning radius or drivetrain alignment.
Engineering specifications & fitment details
Why hub-centric design matters for the 1025R
Hub-centric spacers locate on the axle hub — not the wheel studs — so rotational loads transfer through the center bore exactly as John Deere engineered the front axle. Lug-centric spacers force the studs to carry shear loads they weren’t designed for, which causes stud fatigue and wheel wobble at speed.
Our 1025R spacers machine the center bore to 2.835 inches with ±0.002-inch tolerance, matching the factory hub diameter. This zero-clearance fit prevents lateral movement and keeps your wheel bearings running true. The anodized bore surface won’t gall or seize even after years of seasonal installation and removal.
Track width increase and loader stability
Adding 1.5 inches per side brings your total front track width from 48.4 inches (factory) to 51.4 inches. That 3-inch gain lowers the center of gravity when you’re lifting pallets, moving round bales, or grading with a box blade.
The wider stance reduces body roll on hillsides and prevents the uphill rear wheel from lifting during aggressive loader work. You’ll notice less chassis flex when carrying full-bucket loads because lateral forces distribute across a broader footprint. For owners running R4 industrial tires or aggressive tread patterns, the spacers eliminate tire rub on the front axle housing during full steering lock.
Material specifications and corrosion resistance
We forge these spacers from 6061-T6 aluminum billet — the same alloy used in aircraft landing gear components. The T6 heat treatment brings tensile strength to 45,000 psi, which exceeds the load requirements for compact tractor axles by a factor of four.
Type II anodizing builds a 0.0007-inch oxide layer that seals the aluminum surface against galvanic corrosion. This coating won’t chip or flake like paint, and it maintains electrical conductivity for grounding. Owners in coastal regions and snow-belt states report zero corrosion after five seasons of exposure to salt spray and calcium chloride.
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Your questions about the 1025R wheel spacers
Yes, the kit includes extended lug nuts specifically sized for the 1.5-inch spacer thickness. Standard factory lug nuts won't provide adequate thread engagement once the spacer is installed.
The included nuts have a 60-degree conical seat to match OEM wheel taper and are zinc-plated for corrosion resistance. Torque them to 85 ft-lbs and re-check after one hour of operation.
Our spacers fit any wheel with a 4-on-4-inch bolt pattern and sufficient inner clearance. Measure from your wheel's mounting face to the inner lip — you need at least 1.75 inches to accommodate the spacer and extended studs.
Most aftermarket aluminum rims designed for the 1025R meet this requirement. Wheels with deep inner offsets or decorative lips may contact the spacer face.
Each spacer adds 1.5 inches per side, increasing total front track width by 3 inches. Factory 1025R track width is 48.4 inches; with spacers installed you'll measure 51.4 inches center-to-center on the front tires.
This wider stance improves loader stability and reduces body roll on slopes without affecting the tractor's 6.9-foot turning radius.
Yes, installation requires only a torque wrench and basic hand tools. Mount the spacer to the axle hub, torque the factory nuts to 85 ft-lbs in a star pattern, then install your wheel onto the spacer's extended studs.
The entire process takes about 30 minutes per axle. Re-torque all fasteners after the first hour of operation and again at 10 hours to account for initial settling.
Yes, these spacers are commonly used by owners upgrading to R4 tires. The added track width eliminates tire rub on the front axle housing during full steering lock.
Verify your specific R4 tire doesn't have aggressive shoulder lugs that extend beyond typical tread width. At full lock you'll have 0.4 inches of clearance between the tire's outer edge and the axle housing.
Inspect spacers every 50 hours for stud tightness and hub wear. Clean the anodized surface with mild detergent and water — avoid abrasive pads that damage the oxide coating.
If you remove spacers seasonally, apply anti-seize to the hub bore and stud threads to prevent galling. The anodized finish requires no polishing or protective coatings.
Wheel spacers are considered an accessory modification. John Deere's warranty covers defects in materials and workmanship of factory components, not accessories installed after delivery.
Proper installation following our torque specifications ensures the spacers don't cause wheel bearing or axle damage. Consult your dealer if you have specific warranty questions about modifications.