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Losi
Promoto-MX FXR 2S RTR
1/4 scale RTR Motocross Bike w/ Self-Balancing Gyro ⚡ Electric
Factory stock specs
| Power | ⚡ Electric |
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| Scale | 1/4 |
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| Discipline | RTR Motocross Bike w/ Self-Balancing Gyro |
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| Stock motor | Spektrum Firma 3652 4-Pole Brushless, 3800Kv |
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| Stock ESC | Spektrum Firma 85A Brushless Smart Motorcycle ESC |
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| Stock servo | Steering: Spektrum S620PM Metal Gear Servo; Front Brake: Spektrum SX108PM Micro Servo |
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| Battery | 2S LiPo with IC5 connector, full-size hardcase (sold separately) |
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| Stock gearing | Internal Gear Ratio 4.8:1, Final Drive Ratio 12.0:1, 20T pinion / 50T spur |
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| Weight | 3,500 g (7.7 lb) |
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Worth knowing
Same MS6X gyroscopic self-balancing flywheel system; top speed rated 40+ mph.
📖 Manuals, guides & files
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Specs verified from: losi.com official product page (LOS06000T1)