Losi Rock Rey 1/10 4WD Rock Racer Brushless (BND/RTR w/AVC)

Stock is as the vehicle ships. Calculated is worked from the stock figures on this page rather than stored beside them, so the two cannot drift apart. Not published means it exists but no source we could find prints it. The top speed is kinematic: an ideal no-load RPM with no slip and no loss under load, so a real car is slower.

How these numbers were settled

From Losi's spec table on the LOS03026 page: Final Drive Ratio 32.30:1, Pinion 12T, Outer Diameter 4.45 in (113mm), which is the actual tire diameter.

• The table's separate 2.2in/55.9mm 'Inner Tire / Outer Wheel Diameter' is a bead spec, not the tire diameter, and is not used.
• The 2800Kv rating is confirmed by two Losi sources: the RTR page (LOS03009) lists a 'Dynamite Fuze 2800Kv brushless motor' and the LOS03026 BND manual also states 2800Kv.
• One spot on the BND product page says '3800Kv', treated as a typo since both other Losi sources agree on 2800.
• Losi does not publish a spur tooth count or a separate transmission ratio for this vehicle (unlike its crawler SKUs), so the spur and the transmission and axle ratio are left blank rather than guessed.
• This is a gap in what Losi publishes.
• The battery spec is 2S or 3S LiPo, so the cell count is 3.

Sources

• LOS03026losi.com (opens in a new tab)
• LOS03009T2horizonhobby.com (opens in a new tab)

Every figure on this page traces to one of these. Where they disagreed, the note above says which was used and why.

More from Losi

• LMT 4WD Solid Axle
• Mini LMT 4X4
• Mini-B 2WD Buggy
• Mini-T 2.0 2WD
• Super Baja Rey 2.0
• Super Rock Rey 1/6 4WD Brushless Rock Racer RTR w/AVC
• Tenacity DB Pro
• Tenacity SCT 4WD Brushed