Reference

Rad Power Bikes RadRunner Plus: parts and specs

Replacement parts and specs for the first RadRunner Plus: 20 x 3.3 Kenda K-Rad tires, Tektro Aries mechanical brakes with 180 mm rotors, 7-speed freewheel, LCD display, charger and battery, with Rad's part links and prices.

Last edited Nov 8, 2026 by Pedalwise team Edit History Add a subpage

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This page lists the common replacement parts for the Rad Power Bikes RadRunner Plus (the first RadRunner Plus, which Rad's support site calls the RadRunner 1 Plus). Unlike the RadRunner 1 and 2, it has a 7-speed drivetrain and a backlit LCD display. Specs come from Rad's RadRunner Plus product page and Rad's own parts listings, read Nov 9, 2026. Rad's owner's manuals page lists the RadRunner 1 Plus manual.

Photo needed: The RadRunner Plus from the side, with the battery in place. For photos, see Rad's RadRunner Plus product page linked above.. Add one

Electrical parts on this list must match this exact model, and they are fitted at the external plugs or by a pro. Never open the battery, controller, motor or display. For battery and charger trouble, start with battery won't charge and e-bike battery care.

Parts list

Tire: Kenda K-Rad, 20" x 3.3" (product page). Rad's Kenda K-Rad 20" x 3.3" tire names the RadRunner Plus, $65, out of stock, read Nov 9, 2026. Rad's Kenda Krusade 20" x 4" also lists the Plus, $67.95, out of stock, read Nov 9, 2026.
Inner tube: Rad's 20" x 4" inner tube is Schrader and names the RadRunner Plus, $22, read Nov 9, 2026.
Disc brake pads: the product page lists metallic pads. Rad's Tektro E10.11 organic pads name the RadRunner Plus as compatible, $25, on back order, read Nov 9, 2026.
Brake rotor: 180 mm (product page).
Disc brake caliper: Tektro Aries MD-M300 mechanical disc (product page).
Brake lever: Rad's brake lever, a Tektro mechanical lever for all RadRunner models except the 3 Plus, $25, read Nov 9, 2026.
Freewheel: 7-speed, 11 to 34T, with a Shimano 7-speed derailleur, a Shimano thumb shifter and a 48T crank (product page).
Hub motor: 750 W rated rear hub motor (product page).
E-bike controller: under the skid plate. Rad's RadRunner controller guide covers the Runner 1 Plus and says to use Rad's replacement controller, so ask Rad support for the part.
E-bike display: backlit LCD (product page). Rad's LCD display replacement guide shows its silver barrel connector.
Throttle: half-twist throttle (product page).
Pedal assist sensor: pedal cadence sensor with 5 levels plus zero (product page).
E-bike charger: 48V, 2A smart charger (product page). Rad's Rad Battery Charger (MY2025), $65, out of stock, read Nov 9, 2026.
E-bike battery: 14Ah, 672 Wh external battery (product page). Rad's Safe Shield Advanced External Battery (15 Ah) is listed as an upgrade for the RadRunner Plus, $599, out of stock, read Nov 9, 2026, and needs Rad's updated charger.
E-bike lights: auto-on LED headlight and integrated taillight with brake light (product page). Rad's lights page lists a RadRunner headlight and taillight, so confirm the fit for the Plus with Rad.
Grips: ergonomic imitation leather (product page).
Pedals: forged aluminum platform, 9/16" x 20 TPI (product page).

Where to buy

Rad's own spare parts store: tires, tubes, brakes and lights.
Area 13 E-Bikes says its aftermarket Rad kit, a 35A controller and LCD8H display sold together for $229, is tested and working on the RadRunner Plus, but not with the 500-lumen stock headlight. It showed as out of stock on Nov 9, 2026. It is not a Rad part, so ask Area 13 about fit, and keep the bike set up as its original class.
More independent sellers: parts suppliers. A shop can order and fit parts: find a shop.

Common repairs

Videos

RadRunner Plus Assembly Instructions, Rad Power Bikes from Rad Power Bikes: Rad's assembly video for the RadRunner Plus, a good look at the stock parts and how they fit together.

Sources

Stuck after these checks? Find a shop near you.

Need a pro?

If these steps didn't fix it, find a shop near you in our partner network. For battery or wiring trouble, look for shops marked Battery and electrical.

Talk

Questions, things that worked for you, or something that looks wrong on this page.

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