Choosing among RC repair tools & parts often comes down to a fast split: are you refreshing a crawler's tires, or fixing an electric drivetrain? Even within tire sets, 1.9-inch and 1.3-inch formats point to different wheel setups. The useful shortcut is to match the wheel or motor-shaft detail first, then use tread wording, dimensions, and price to break ties.
Quick take
Three entries are four-tire crawler sets; the remaining entry is a steel pinion gear. The tire choice is mainly a wheel-format decision: two sets use 1.9-inch wording, while HOBBYSOUL names 1.3-inch beadlock wheels. The pinion choice turns on the stated 5mm motor-shaft fit and Mod .8/32P designation. Start with physical fit, then compare the concrete tire construction or tread details that matter to your build.
Listed price comparison
Prices run from USD 4.95 to USD 36.26, a $31.31 spread across the four choices. The bars indicate relative position within this listed-price range.
| Product | Listed price | Price bar |
|---|---|---|
| BFGoodrich Mud-Terrain 1.9-inch crawler tires | USD 21.00 | |
| HOBBYSOUL 1.3-inch Griptrek 4-pack | USD 36.26 | |
| 1.9-inch rubber crawler tire 4-pack | USD 25.99 | |
| Mod .8 32P 5mm steel pinion gear | USD 4.95 |
Decision matrix
- For a 1.9-inch wheel setup: compare the BFGoodrich Mud-Terrain set with the 1.9-inch rubber tire set; their named tread, construction, and dimensions provide the useful tie-breakers.
- For a 1.3-inch beadlock setup: the HOBBYSOUL Griptrek four-pack is the direct format match, with soft sticky compound and asymmetric tread wording.
- For a crawler tire refresh: choose between the four-tire sets rather than the pinion gear, using the vehicle references and measurements that align with the build.
- For an electric drivetrain repair: the Mod .8 32P steel pinion gear is the relevant choice when the motor uses the stated 5mm shaft.
Product notes
BFGoodrich Mud-Terrain 1.9-inch RC Crawler Tires
For a crawler calling for 1.9-inch wheels, the four-tire BFGoodrich Mud-Terrain set is a direct match to that named wheel format. Its compatibility includes Axial SCX10 ii 90046 and Traxxas TRX4, while the description gives a 90mm outside diameter. That combination makes it a practical choice when those vehicle references and dimensions align with the build. The limitation is equally concrete: the set is tied to 1.9-inch wheels and the stated 90mm diameter, so it is not the format to select for a 1.3-inch beadlock setup. At $21.00, it sits below the two other crawler tire prices in this comparison.
HOBBYSOUL 1.3-inch Griptrek RC Crawler Tires
The HOBBYSOUL 1.3-inch Griptrek four-pack is the focused choice for a build using most 1.3-inch beadlock wheels. The description calls out a super-soft, sticky compound, asymmetric irregular triangular tread, and use on wet mud, loose dirt, and slick rock. Those details make the intended terrain clear. Its limitation is format: the stated fit centers on 1.3-inch beadlock wheels, unlike the 1.9-inch sets here. At $36.26, it also carries the highest listed price, so choose it for the stated wheel format and compound rather than for a general tire replacement.
1.9-inch Rubber RC Crawler Tire 4-Pack
The 1.9-inch rubber tire four-pack suits a 1/10 RC rock crawler build and names Traxxas TRX4 in its title and compatibility details. The description gives black rubber tires with a 120mm height, 50mm width, 48mm inner diameter, and 104g per tire, useful when those dimensions are part of the fit decision. The limitation is its specified 1.9-inch format and measurements; shoppers seeking 1.3-inch beadlock tires need a different format. At $25.99, it lands between the other crawler tire prices, giving the dimensions and rubber construction more importance than a simple price comparison.
Mod .8 32P 5mm Steel Pinion Gear
For an electric RC drivetrain using a 5mm motor shaft, the Mod .8 32P steel pinion gear is the focused repair choice. Its description specifies a 5mm bore and includes a screw with each gear; the attributes identify an electric setup and 1:8 scale. The limitation is explicit: compatibility is for a 5mm motor shaft, so a different shaft diameter is outside the stated fit. Because this is a drivetrain component, it will not address a tire replacement. Choose it when the motor-shaft measurement and Mod .8/32P designation match the repair, rather than simply choosing by its low listed price.
Final recommendation by use case
- BFGoodrich Mud-Terrain crawler tire refresh: choose the four-pack when that product title and 1.9-inch format fit the build.
- 1.3-inch beadlock crawler setup: choose HOBBYSOUL Griptrek for its stated soft sticky compound and terrain wording.
- 1/10 crawler using a rubber tire set: choose the four-pack that names Traxxas TRX4 and supplies the listed 1.9-inch dimensions.
- Electric 1:8 drivetrain repair: choose the Mod .8 32P steel pinion gear only when the 5mm motor-shaft requirement matches.
The overall shortcut is simple: wheel format decides among the tires, while shaft diameter decides whether the pinion gear belongs in the repair.
