D4+ 4.0 Parts - RoadRunner Scooters

Brake Pads - D4+ 3.0, D4+ 4.0 (New Generation) (1 Pair) - RoadRunner Scooters

$19

Replacement Brake Pads for Nanrobot D4+ 3.0 New Generation Electric Scooter Keep your braking system sharp and responsive with this set of 2 replacement brake pads, designed specifically for the Na...

Handlebar Tbar Assembly - D4+ 2.0, D4+ 3.0, D4+ 4.0 - RoadRunner Scooters

$99

Replacement T-Bar (Top Half of Stem) for Nanrobot D4+ Electric ScooterRestore the stability and function of your scooter with this OEM‑spec replacement T‑bar, the top half of the Nanrobot D4+ stem....

Speed Control (Front) - D4+ 2.0 (New Generation) 3.0, 4.0 - RoadRunner Scooters

$100

Replacement Front Electronic Speed Controller (ESC) for Nanrobot D4+ 2.0 (New Generation) and D4+ 3.0 Electric Scooters Ensure smooth front motor performance with this OEM-spec front speed controll...

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Charger - D4+ 2.0, D4+ 3.0, D4+ 4.0 Scooters - RoadRunner Scooters

from $79

~~$99~~

This is the official RoadRunner replacement or spare charger, designed specifically for your model. Each charger is tuned to your scooter’s voltage and connector type—using the wrong one can damage...

Lug Nut (Pair) - 21 MM - RoadRunner Scooters

$10

Secure your scooter’s motor axle with this 21 mm replacement lug nut pair, designed specifically for several Nanrobot models. These heavy-duty nuts ensure proper torque retention and safe wheel att...

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Battery - D4+ 2.0, D4+ 3.0, D4+ 4.0 - RoadRunner Scooters

$599

52V 23AH Lithium-Ion Battery for All D4+ Models Power your ride with the all-new 52V 23AH Lithium-Ion Battery, engineered to deliver peak performance for ALL D4+ 2.0, D4+ 3.0, and D4+ 4.0 scooters....