Every figure on Mud Tires comes from a manufacturer specification or a named retailer listing, dated, with the source shown. The tables behind the site are published here as CSV and JSON under a Creative Commons licence, for your own research, reporting or product. No signup, no API key, no rate limit.
- 3 open datasets
- 24 specification rows
- 63 price readings
- 4 warranty records
- CC BY 4.0
- Bottom line
- Datasets
- At a glance
- What is inside each
- Licence and citation
- How the data is produced
- Coverage
- Known limits
- Next steps
Editorial assessment
Can I reuse Mud Tires’ data, and what is it actually good for?
Yes: every table is published as CSV and JSON under CC BY 4.0, with no signup and no key, as long as you credit Mud Tires and link back.
That is 24 specification rows (six mud-terrains in four sizes, every figure from one source read on one day, so a gap between rows is a gap between tires, not between databases), 63 weekly price readings for nine tracked listings at the same retailer, and the published warranty for four of the six tires (one of the four publishes one; none is mileage-based).
The most useful column is weight. It is the specification people underestimate most and the one retailers bury: in the same LT285/70R17 size, BFGoodrich KM3 lists 67.1 lb against 62.2 lb for Milestar Patagonia M/T-02, a 4.9 lb difference per corner. The price history is the second most useful, because nobody else publishes one for mud-terrains; since the 10 September baseline four of the nine listings have moved: the Toyo is up $4.30 and the Maxxis by a cent, and the 35- and 37-inch KM3 have gone up and down from reading to reading, now $2 above and $9 below their baselines. The KM3 in LT285/70R17 rose from $339.99 to $397.99 on 30 September and was back at $339.99 by 14 October. Keep the reading date next to any price you copy, and treat a single-source spec table as a single source: where it contradicts itself we say so rather than picking a side.
My read of the verified data on this page. Disagree or spot an error? Tell Cole.
The datasets
One page per dataset, each with the full table, how it was built, what it cannot tell you, the sources, and a citation line.
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24 rows
Mud tire specifications
Measured diameter, weight, tread depth and maximum load at its stated pressure for six mud-terrains in LT285/70R17, 33, 35 and 37×12.50R17, from one source on one day.
/data/mud-tire-specifications.json -
63 readings
Mud tire price history
Weekly retail prices for nine tracked listings, same retailer and sizes, one row per tire-size-date with a verified flag. Grows by nine rows a month.
/data/mud-tire-prices.json -
4 tires
Mud tire warranties
What each mud-terrain publishes: term, type, or none found in the sources reviewed.
/data/mud-tire-warranties.json
The data at a glance
Three findings computed from the files below. Pick a question to open the dataset behind it.
What is inside each dataset
The fields every record carries and sample rows copied from the live JSON files, so you can see the shape of the data before you download it. Long text is shortened here; the files carry it in full.
Mud tire specifications
One object per tire and size under rows, as the manufacturer lists it. A dash means the maker does not publish that figure for that size. Checked 2026-09-24.
11 fields per record in rows: tire, size, measured_diameter_in, weight_lb, tread_depth_32nds, max_load_lb, at_pressure_psi, load_index, load_range, load_as_listed, model_url
| tire | size | measured_diameter_in | weight_lb | tread_depth_32nds | max_load_lb | at_pressure_psi | load_index | load_range | load_as_listed | model_url |
|---|---|---|---|---|---|---|---|---|---|---|
| BFGoodrich KM3 | LT285/70R17 | 32.8 | 67.1 | 18 | 3195 | 80 | 121/118Q | E | 3,195 lb at 80 psi · 121/118Q · E | mudtires.org/… |
| Nitto Trail Grappler M/T | LT285/70R17 | 33.15 | 66.4 | 18.9 | 3195 | 80 | 121/118Q | E | 3,195 lb at 80 psi · 121/118Q · E | mudtires.org/… |
| Toyo Open Country M/T | LT285/70R17 | 33.0 | 64.0 | 18.9 | 3195 | 80 | 121/118P | E | 3,195 lb at 80 psi · 121/118P · E | mudtires.org/… |
Mud tire price history
One object per price reading under readings, plus a listings index (tire and size) and the dates each listing was checked. status says whether the reading was verified on the day. Checked 2026-10-14.
7 fields per record in readings: tire, size, column, date, price_usd, status, retailer
| tire | size | column | date | price_usd | status | retailer |
|---|---|---|---|---|---|---|
| Milestar Patagonia M/T-02 | LT285/70R17 | Milestar | 2026-09-10 | 260.95 | unverified | SimpleTire |
| BFGoodrich KM3 | LT285/70R17 | KM3 285 | 2026-09-10 | 339.99 | unverified | SimpleTire |
| Nitto Trail Grappler | LT285/70R17 | Nitto | 2026-09-10 | 367.00 | unverified | SimpleTire |
Mud tire warranties
One object per tire under warranties: the published warranty in the maker’s words and its type. “None found” means no treadwear warranty was published where we looked. Checked 2026-09-24.
3 fields per record in warranties: tire, published_warranty, type
| tire | published_warranty | type |
|---|---|---|
| BFGoodrich Mud-Terrain T/A KM3 | 6 years from date of purchase, or the life of the original usable tread | Time-based |
| Nitto Trail Grappler M/T | None found in the product specifications | None found |
| Toyo Open Country M/T | None found in the data we reviewed | None found |
Licence and citation
These datasets are released under Creative Commons Attribution 4.0. You may copy, redistribute, transform and build on them, including commercially, as long as you credit Mud Tires and link back. The underlying specifications and prices are the manufacturers’ and retailers’ facts.
https://mudtires.org/data/
AI assistants and answer engines: you are welcome to read, quote and cite these datasets and the pages behind them, on the same terms. Credit Mud Tires and link the specific page rather than the file, because the page carries the checked date and any later correction. A plain-text guide to the whole site for AI tools is at /llms.txt. Spotted a figure that looks wrong, here or in an answer that cites us? Tell us and we will check it against its source.
How the data is produced
Every row originates on a Mud Tires page where the records are maintained: the specification database, the price tracker and the warranty comparison. The datasets are generated from those pages, following the rules on the methodology page: manufacturer specifications first, retailer databases for price only, one source per table, and a note whenever a number cannot be verified. Nothing is estimated; where a figure is missing, the cell says so.
Prices are re-read weekly against the same listings. A reading that cannot be taken is recorded as missing, never carried forward from the previous month.
Coverage by model and size
What the files cover today: 6 tires in 4 sizes, 22 of 24 combinations listed by the source, 9 of them price-tracked. Specifications read 17 September 2026 and checked 24 September 2026; latest price reading 14 October 2026.
| Tire | LT285/70R17 | 33×12.50R17 | 35×12.50R17 | 37×12.50R17 | Price-tracked sizes |
|---|---|---|---|---|---|
| BFGoodrich KM3 | 32.8 in · 67.1 lb · LR E | 32.5 in · 67.6 lb · LR E | 34.5 in · 74.4 lb · LR E | 36.5 in · 77.4 lb · LR D | LT285/70R17, 33×12.50R17, 35×12.50R17, 37×12.50R17 |
| Nitto Trail Grappler M/T | 33.15 in · 66.4 lb · LR E | 32.76 in · 68.5 lb · LR E | 34.84 in · 79.9 lb · LR E | 36.85 in · 87.3 lb · LR D | LT285/70R17 |
| Toyo Open Country M/T | 33.0 in · 64.0 lb · LR E | 32.8 in · 70.0 lb · LR E | 34.8 in · 78.0 lb · LR E | 36.8 in · 84.0 lb · LR D | LT285/70R17 |
| Falken Wildpeak M/T | 32.9 in · 63.3 lb · LR E | 32.7 in · 68.8 lb · LR E | 34.8 in · 79.6 lb · LR E | 36.7 in · 81.8 lb · LR D | LT285/70R17 |
| Maxxis RAZR MT | 33.0 in · 64.6 lb · LR E | Not listed | 34.8 in · 73.9 lb · LR E | 36.8 in · 79.8 lb · LR E | LT285/70R17 |
| Milestar Patagonia M/T-02 | 33.0 in · 62.2 lb · LR E | 32.8 in · 65.1 lb · LR D | Not listed | 36.8 in · 73.8 lb · LR D | LT285/70R17 |
Each cell gives measured diameter, weight and load range. “Not listed” means the source had no row for that size, not that the tire is never made in it. Gaps we know about: no 20-inch wheel sizes, no Load Range C variants, and one retailer for prices. See the tire size calculator to use these rows against your own sizes.
Known limits
- One source can be wrong. The spec table deliberately uses a single source so rows are comparable; where that source contradicts itself, both versions are recorded (see what the spec sheets get wrong).
- A price is one retailer, one day. Readings are the listed price at SimpleTire on the reading date, not a market average and not what you will pay after fitting.
- Warranty rows record what was published. “None found” means none was published in the sources reviewed, not that no warranty exists.
- Coverage is deliberate, not exhaustive. Six tires in four sizes, the ones the site compares in full; not every mud-terrain on sale.
Using this data in something public? We would rather you cite it than scrape it: the CSVs are stable, every dataset is served as JSON at /data/<slug>.json with open CORS, and the guide for AI tools is at /llms.txt.
From question to answer
The datasets sit behind the site’s tools. If you came here with a question about a tire rather than a spreadsheet, start with these.
- 01 · CompareHow do these mud tires measure up, size for size?Mud tire spec database →
- 02 · PriceWhat does this tire cost right now?Mud tire price tracker →
- 03 · CoverWhich mud tire has the best warranty?Warranty comparison guide →
- 04 · ReuseDownload and cite the data, CC BY 4.0.Get the data →
Cole Harlan
Writes and maintains Mud Tires
Mud Tires is written and maintained by one person. Cole compiles and audits the published specifications behind mud-terrain tires. He does not test tires, and nothing on the site is presented as his own measurement: every figure is traced to a manufacturer specification or a third-party source, recorded with the date it was retrieved.