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Galaxy Earthpro Bias R-1 18.4-34 D/8PLY

518611 Galaxy Earthpro Bias R-1 18.4-34 D/8PLY Tires

Rims Not Included

Rear tractor
Farm - R-1/Rear Farm

easy test score

7.9 Great

4.8

18 reviews

Per Tire:

$775.59

OR

$Loading /mo

Save $

Lightning Savings

Was $969.49

Strikethrough Pricing on Giga Tires

Our percentage-off promotions, discounts, or sale markdowns are customarily based on our own opinion of the value of this product, which is not intended to reflect a former price at which this product has sold in the recent past. This amount represents our opinion of the full retail value of this product today, based on our own assessment after considering a number of factors.

Estimated Delivery

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$ /mo

1 tire
2 tires
3 tires
4 tires
5 tires
6 tires
7 tires
8 tires
9 tires
10 tires

Please contact customer support. (877) 709-4442

Galaxy 347 Bias R-1 18.4-26 F/12PLY

535508 Galaxy 347 Bias R-1 18.4-26 F/12PLY Tires

Rims Not Included

Rear tractor
Farm - R-1/Rear Farm

easy test score

7.9 Great

4.8

18 reviews

Per Tire:

$861.45

OR

$Loading /mo

Save $

Lightning Savings

Was $1076.81

Strikethrough Pricing on Giga Tires

Our percentage-off promotions, discounts, or sale markdowns are customarily based on our own opinion of the value of this product, which is not intended to reflect a former price at which this product has sold in the recent past. This amount represents our opinion of the full retail value of this product today, based on our own assessment after considering a number of factors.

Estimated Delivery

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Shipping

Total

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OR

$ /mo

1 tire
2 tires
3 tires
4 tires
5 tires
6 tires
7 tires
8 tires
9 tires - Out of Stock
10 tires - Out of Stock

Please contact customer support. (877) 709-4442

Galaxy Earth Pro R-1 20.8-38 E/10PLY

518578 Galaxy Earth Pro R-1 20.8-38 E/10PLY Tires

Rims Not Included

Rear tractor
Farm - R-1/Rear Farm

easy test score

7.9 Great

4.8

18 reviews

Per Tire:

$925.40

OR

$Loading /mo

Save $

Lightning Savings

Was $1156.75

Strikethrough Pricing on Giga Tires

Our percentage-off promotions, discounts, or sale markdowns are customarily based on our own opinion of the value of this product, which is not intended to reflect a former price at which this product has sold in the recent past. This amount represents our opinion of the full retail value of this product today, based on our own assessment after considering a number of factors.

Estimated Delivery

Loading

Loading

Shipping

Total

Loading

OR

$ /mo

1 tire
2 tires
3 tires
4 tires
5 tires
6 tires
7 tires
8 tires
9 tires
10 tires

Please contact customer support. (877) 709-4442

Galaxy Earthpro Bias R-1 20.8-38 D/8PLY

518669 Galaxy Earthpro Bias R-1 20.8-38 D/8PLY Tires

Rims Not Included

Rear tractor
Farm - R-1/Rear Farm

easy test score

7.9 Great

4.8

18 reviews

Per Tire:

$929.60

OR

$Loading /mo

Save $

Lightning Savings

Was $1162.0

Strikethrough Pricing on Giga Tires

Our percentage-off promotions, discounts, or sale markdowns are customarily based on our own opinion of the value of this product, which is not intended to reflect a former price at which this product has sold in the recent past. This amount represents our opinion of the full retail value of this product today, based on our own assessment after considering a number of factors.

Estimated Delivery

Loading

Loading

Shipping

Total

Loading

OR

$ /mo

1 tire
2 tires
3 tires
4 tires
5 tires
6 tires
7 tires
8 tires
9 tires
10 tires

Please contact customer support. (877) 709-4442

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Compare tires at a glance using our easy test score^® system. Our proprietary algorithm factors in performance, expert insights, user reviews, and Uniform Tire Quality Grading (UTQG) scores.

Four criteria factor into easy test score^®

Consumer reviews

Research based on customer reviews and buying behavior
Treadwear

The lifespan of a tire based on wear performance
Traction

The ability of a tire to grip to the road in wet conditions
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At Giga Tires, we’ve delivered unbeatable tire prices and service since 2014. With over 1 million tires sold, a #9 ranking in Newsweek’s America’s Best Online Shops for 2026, and 38K+ 5-star ratings, we offer over 45K+ products along with great promotions, discounts, and rebates. Enjoy fast shipping to your home or a local installer like PepBoys, Monro, and TireChoice. Backed by a 45-day return policy, we make tire buying simple, reliable, and affordable. Headquartered in California, we proudly serve drivers across the continental US.

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