MODEL DATA / ARA4312V4T3 2026-11-04
Big Rock 223S BLX specs and buying notes
Arrma / ARA4312V4T3
Big Rock 223S BLX is a 1/10 monster truck with 4WD and a brushless motor. The maker lists $369.99 (USD maker list price).
Battery and charger are separate purchases. The maker speed claim uses the higher-voltage battery, not every supported setup.
Monster truck · 4WD
Brushless
- Maker list price / USD
- $369.99
- Source read
- 2026-11-04
- Drive battery included
- No — separate purchase
- Charger included
- No — separate purchase
What else must you buy?
Compatible drive battery — separate purchase; Compatible charger — separate purchase. Check transmitter batteries and charger power supply in the exact manual.
Check the charging setup ↗What comes in the box?
Assembled vehicle, motor, ESC/receiver, servo, transmitter, four AA batteries and manual; drive battery and charger sold separately
How large is this exact model?
Bars compare published measurements against the catalogue’s largest value. They describe size, not performance.
What specifications does the maker publish?
| Field | Maker data |
|---|---|
| Scale | 1/10 |
| Vehicle type | Monster truck |
| Drive | 4WD |
| Length (mm) | 514 |
| Width (mm) | 356 |
| Height (mm) | 201 |
| Wheelbase (mm) | 327 |
| Weight (g; maker basis) | 3,550 |
| Motor | Spektrum 3100Kv |
| Motor type | Brushless |
| Motor kV (rpm/volt) | 3100 |
| Electronic speed control (ESC) | Spektrum SLT 80A 2-in-1 ESC/receiver |
| Recommended battery | 2S or 3S hardcase LiPo |
| Pack cells in series | not published |
| Pack nominal voltage (V) | not published |
| Battery connector | IC5 |
| Maker speed claim and setup | 50+ mph with 3S LiPo; maker claim |
| Maker water wording | Water-Resistant: Yes; maker wording. Follow the manual limits. |
| In the box | Assembled vehicle, motor, ESC/receiver, servo, transmitter, four AA batteries and manual; drive battery and charger sold separately |
| Drive battery included | No — separate purchase |
| Charger included | No — separate purchase |
| Maker list price (USD) | $369.99 |
| Supplied capacity (mAh) | not published |
| Tire diameter (in) | not published |
| Total gear ratio | 10.15 |
| Ready-to-run / ready-to-fly | Yes |
| Maker age guidance | not published |
| Separate purchases per maker | not published |
Source: Exact maker document read 2026-11-04. A different source is shown beside the affected field. “Not published” means no supported value was captured, including access gaps.
Which similar models can you compare?
These are the two nearest documented lengths in this vehicle group; missing lengths sort as zero. This is a size comparison, not a ranking.
Load published calculator inputs ↗
Which sources support this page?
Use the exact model code when checking a maker page. The read date is a record of our research, not a promise that a listing stays unchanged.