The Roadmaster RM170 285/70R19.5 H/16PLY Tires is a Commercial Truck - All Position tire. Manufacturer part number: 173044023.
The RM170 is a pick-up and delivery all-position tire and with the addition of the 17.5 inch sizes, it is also ideal for low-platform trailers. The solid shoulder tread design and high tensile strength belt construction combine to provide the retreadability and treadwear that your local hauler requires. It is a good option if you service unpaved lots, or travel even short distances on gravel roads since the V-shaped tread grooves have stone ejectors that kick out rocks. Rocks that stay imbedded in the rubber can eventually drill down to the steel casing ply and cause belt seperation.
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Roadmaster Tires, founded in the 1930s in the USA, is a Goodyear portfolio brand specializing in commercial vehicle tires. Operating in the United States, Canada, and Mexico, Roadmaster is trusted by fleet operators for durable, cost-effective tires, offering robust construction, long tread life, and excellent retreadability for commercial trucks (long-haul, regional, mixed-service) and buses. Roadmaster is an OE supplier to major North American trailer manufacturers like Wabash National, underscoring its reliability in demanding commercial operations.
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Specifications
Shipping & Payment
Financing
Size Details
OE Fitment
Specifications
Specs
Value
Description
Sidewall
Not Available
Describes the sidewall appearance. Examples: BSW= Black Side Wall, WSW = White Side Wall, OWL = Outlined White Letters.
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Load Index
146/144
The load index (LI) is a 2- or 3-digit number that correlates to the maximum amount of weight the tire can carry. For example, a tire with a load index of 87 indicates that the tire can carry a maximum load of 1,201 lbs. In this particularly example, 4 tires (each with a load index of 87) can carry a maximum of 4,804 lbs. Refer to your vehicle owner's manual for the recommended minimum load index.
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Speed Rating
L
Speed rating (SR) indicates the maximum speed the tire can achieve. Higher speed ratings are typically associated with better handling capabilities. Refer to your vehicle owner's manual for the recommended minimum speed rating.
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Load Range/Ply Rating
H/16PLY
Ply rating, more commonly referred to as load range, represents the strength and durability of the tire. Higher ratings may indicate your tires can handle heavier loads.
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UTQG
Not Available
To help consumers evaluate their tires, the U.S. National Highway Traffic Safety Administration (NHTSA) created the Uniform Tire Quality Grading System (UTQG). The UTQG rates tires are rated on their tread-wear, traction performance, and temperature resistance. The grade for each of these can be found on the sidewall of your tire (except for winter tires and certain light truck tires).
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Max Single Load(lbs)
6610
The maximum load this tire will support. Remember to multiply this number by the number of tires installed on your vehicle to get the maximum carrying capacity. This number is directly related to the Load Index.
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Max Single Air Pressure(PSI)
125
The maximum air pressure this tire will support. This does not represent the amount of air pressure your tires should have at all times. Consult with your owner's manual to determine the best air pressure you should use for your vehicle.
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Tread Depth
17.5
The amount of tread on the tire. Once the tire is worn to 2/32nds, it is considered fully used and should be replaced at that time. Most tires will have tire indicators in the grooves of the tire to help you determine when the tires are worn down to 2/32nds.
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Tread Design
Nondirectional
The pattern of the grooves, lugs, voids, and sipes on a tire's surface. This design affects the tire's traction, handling, and noise characteristics. Common types include symmetrical (uniform pattern across the tire), asymmetrical (different patterns on the inside and outside for varied road conditions), and directional (designed to rotate in one direction for improved wet traction and hydroplaning resistance).
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Rim Width Range
7.5-9.0
The approved wheel rim width range this tire will support.
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Measured Rim Width
8.2
The recommended wheel width as recommended by the tire manufacturer to get the best wear us performance for this tire.
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Section Width
11.1
The measurement from sidewall to sidewall.
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Tread Width
Not Available
The measurement from one side of the tread to the other side of the tread.
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Overall Diameter
35.2
The height of the tire when fully inflated.
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Manufacturer Part Number
173044023
Manufacturer part number (sku)
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Shipping & Payment
Shipping rates and estimated delivery times are available on tires after setting your delivery zip code. Tires ship via FedEx Ground and the shipment times are a very good estimate, although not an exact number of time-in-transit days. Tires are delivered Monday - Saturday. FedEx does not pick up orders on weekends or certain holidays. Once the tires are picked up, the time-in -transit estimate begins. If you place your order Friday afternoon, or on the weekend, your tires it will not ship until the following week. Currently we only offer FedEx Ground, expedited shipping is not available. Depending on when you place your order, there may be one, possibly two days of processing time. Shipping delivery times can be impacted by weather events across the country.
You can choose between 3 delivery options:
Your tires can be delivered directly to your billing address.
Your tires can be delivered to an alternate address. In this case, please specify the delivery address and the person authorized to receive the tires on your behalf.
The tires can be delivered directly to a Tire Installer of your choice. Please enter the address of the Tire Installer in the "Ship To" address and be sure to coordinate acceptance of your shipment from Tires-easy-truck.com.
You will receive an e-mail confirmation of the transaction when you place your order. Please save a printed copy of your order confirmation for your records.
We accept American Express, Visa, MasterCard, Discover, PayPal and Katapult for Tire Financing.
With a small down payment, and easy payments you can lease your tires. Payments are coordinated with your payday. Read more here about how Katapult works.
"I had difficulty balancing the Sumitomo tires on my 2009 Chevy dually with 19.5" wheels and finally gave up and purchased a new set of Roadmasters. The Roadmasters are heavy 12 ply tires but they balanced just fine. I use this truck to pull an 18,000 lb fifth wheel or to haul a 10' heavy camper and they do the job perfectly. Price was reasonable so I am very satisfied with them."
Oct 31, 2019
by
Chad
Great tires
"These tires are amazing and they shipped quickly. Also awesome prices as well."
Jul 15, 2021
by
Bob W.
Great performance on our 35 ft fifth wheel traveling from PA to NM.
"Competitive price for this high load range H tire. Got full refund and return shipping on two tires that I incorrectly ordered as the wrong size for two spares, Amazing! I am highly recommending Giga Tires to others."
Nov 29, 2018
by
Garry D.
Bought two to try them out and now I will buy more
"I bought two of these tires for the front of my Chevy 3500 dually. I wanted to see how rough they are and how noisy they are before I bought for all six wheels. After a few weeks, I am happy with them and will buy the tires for the back wheels. They are not noisy nor overly harsh. Just what I was looking for."
Dec 24, 2019
by
DD
Great tires, and the best price. Supper fast shipping.
"Keep up the Great Work.
I made a mistake when ordering, and placed order twice (OH NO).
I called right away, and it was taken care of.
Great customer service."
Aug 7, 2017
by
Stork t.
Great tires
"100%"
Jun 6, 2017
by
John C.
Great replacement for my 34' RV.
"Bought to replace Hankooks. Have made 2 trips and so far the ride is good. mileage increased and cruise speed is 65mph."
Jan 18, 2018
by
billy h.
very pleased with tires and price
"purchaced these tires for front steering tires on my 2015 georgetown. the ride was greatly improved over the stock tires. planning to replace other tires two at a time, rotating front to back to keep newer steering tires. ( easier on the pocket book)"
May 8, 2020
by
Lou
Great tires great price
"Good all around performance for a fantastic price. Excellent handling dynamics (steering and braking). Too new to judge on wear."
Jul 26, 2017
by
Jak J.
no problems so far...
"Price was good..."
Jun 11, 2019
by
Jim P.
Just what I needed..
"I did my research on tires for my RV and these fit the bill. Great Price with date codes for tires manufactured 7 months before installation. Tires-Easy said I could return them for any reason so I ordered them ans was not disappointed."
Sep 7, 2017
by
Denise
Great having them delivered straight to me. And great quality.
"We have Tow Trucks. Ordering these and having them delivered straight to us is so convenient and the are great quality"
Nov 24, 2020
by
vx
Great tire
"I bought a new one to replace a damaged tire from my new Grand Design Momentum RV."
May 28, 2018
by
Troy H.
Really good tire. Long wearing..
"Been using these tires for years. Get around a 100,000 miles. Highly recommended .."
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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
