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  • 30 miRange
  • 16 mphTop speed
  • 350 lbCapacity

RMB Protean Folding 3 Wheel Mobility Scooter

  • AvailabilityStock status can change very rapidly. An item might come back in stock before we update this or might have sold out. We highly recommend you call or chat with us for a 100% stock status.
  • BrandRMB
  • ModelProtean
$2,999.99Was $3,299Save $299

Free shippingNo sales tax added

  • Free Curbside Delivery
  • White Glove Available
  • Pay Over Time
  • 1 Year Parts Warranty
Ratings as of Oct 2026

Options & Upgrades

Black
Gray
Red
Blue
Yellow
Purple
Green
Rear Soft Monster Storage Bag (+$48)
Rear Soft Oxygen Tank Holder (+$37)
Rear Soft Walker Holder (+$37)
Rear Soft Cane and Crutch Holder (+$33)
Rear Metal Basket (+$54)
Metal Cane and Crutch Holder (+$33)
Metal Walker Holder (+$73)
Canopy (+$159)
Metal Oxygen Tank Holder (+$54)
Armrest Bag (+$53)
Unbreakable Cup and Bottle Holder (+$43)
Weather Cover (+$179)
Cane Holder (+$53)
Extra Light (White) (+$35)
Extra Light (Red) (+$34)
Product total
Options total
Grand total

Specifications

Performance
Motor48V 500W brushless DC hub motor
Top speedUp to 16 mph with a 2 speed control button
Low speed setting8 mph limiter for indoor and crowded areas
RangeUp to 30 miles per charge
Battery48V 12Ah sealed lead acid removable EZ Swap pack
Charger48V external charger for 110V to 240V outlets
Charging time6 to 8 hours
Weight capacity350 lb
BrakesHandbrake with auto power cutoff plus parking brake
ThrottleTwist grip with reverse switch
Size & Seat
Weight101 lb
Overall size45 in L x 27 in W x 44.5 in H
Folded size29 in L x 27 in W x 20 in H
Front tire16 in
Rear tires12.5 in
LightingLED headlight and under deck LED lights
Onboard extrasDual USB ports, alarm system, horn, removable key
IncludedAdjustable seat, front basket, tow hitch, tool kit
ColorsBlack, Gray, Red, Blue, Yellow, Purple, Green
Warranty6 months on the unit and 3 months on tires and battery

Overview

RMB Protean folding scooter in red

Patented folding 3 wheel electric scooter with a 500W 48V motor, 16 mph top speed and up to 30 miles of range. Folds down to 29 x 27 x 20 inches for RV bays, trunks and closets.

The RMB Protean is a patented folding 3 wheel electric scooter built for people who need real transport range in a package that stows almost anywhere. A 48V 500W brushless hub motor pushes it to 16 mph, and a two speed button drops the limit to 8 mph when you are riding indoors or around pedestrians. On a full charge the Protean covers up to 30 miles, which puts it in touring territory rather than short errand range.

The party trick is the fold. The handlebars drop and the frame collapses into a 29 x 27 x 20 inch block, so it fits an RV storage bay, a pickup bed, a car trunk or an apartment closet. RMB designed the Protean around RV owners, warehouse crews, rental fleets and mobility riders who refuse to leave their wheels at home.

Riding position is upright and flexible. The seat and handlebars both adjust for height, the deck is a flat step through floor, and the twist grip throttle carries a reverse switch for tight parking moves. A 16 inch front wheel with 12.5 inch rears smooths out pavement seams better than the tiny casters on typical travel scooters.

RMB rounds out the package with an alarm system, dual USB charge ports, LED headlight, under deck accent lighting, a front basket and a factory tow hitch that pairs with RMB cargo trailers. With a 350 lb weight capacity the Protean carries larger riders that most folding scooters turn away.

Video

RMB Protean Folding 3 Wheel Mobility Scooter video

A boxed scooter on a pallet at the curb, lowered from a truck

Shipping

  • Freecurbside delivery
  • $249white glove, set up inside
  • Check firstthen sign
A smiling woman talking on the phone at her kitchen table

Warranty

What warranty comes with the Protean?

RMB backs the Protean with a manufacturer limited warranty. The exact coverage terms for this model are listed in the Specifications tab and the product documentation. Normal wear items and damage from misuse or accidents are excluded, as with all manufacturer warranties.

If something goes wrong, reach out to us first. We can often sort out a fix over the phone or ship a replacement part. Contact us and we will help.

Warranty policy

Why HDM

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Real people answer, business hours and weekends. If the line is busy, we call you back.

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    Direct relationships with the makers speed up warranty and technical answers.

  • We stay with you after the sale

    Phone help first, and a technician if a shipping or product issue needs one.

  • A range we would buy ourselves

    Only heavy duty models we would recommend.

  • Honest financing

    Pay over time with Klarna, upfront about interest.

How small is the RMB Protean when folded?

The handlebars fold down and the frame collapses to about 29 in long, 27 in wide and 20 in tall. That block shape fits RV storage bays, car trunks, truck beds and closets. Unfolded it measures 45 in long and 44.5 in high.

Is the Protean hard to lift into a vehicle?

The Protean weighs 101 lb, so plan on a two person lift or a folding ramp. Once folded it sits flat and stable, which makes it easy to roll up a ramp into an RV storage bay or truck bed.

How fast and how far does the RMB Protean go?

The 48V 500W hub motor tops out at 16 mph, and a 2 speed button caps it at 8 mph for indoor and crowded areas. Range is up to 30 miles per charge on the standard 48V 12Ah sealed lead acid pack, depending on rider weight, terrain and speed.

Can I charge the Protean battery away from the scooter?

Yes. The EZ Swap battery pack is removable, so you can carry it inside and charge it at any standard outlet with the included 48V external charger, which works on 110V to 240V. A full charge takes 6 to 8 hours.

How much weight can the Protean carry?

The Protean is rated for riders up to 350 lb, which makes it a folding option for larger riders. It also has a front basket for small items and a factory tow hitch that pairs with RMB cargo trailers.

Can I take the RMB Protean on a plane?

Check with your airline well ahead. The standard battery is a 48V 12Ah sealed lead acid pack, which airlines treat differently from lithium. It usually must stay secured in the scooter with the terminals protected. RMB also sells an optional lithium pack, which falls under separate lithium limits. Each airline makes the final decision, so confirm before you fly.

Is the Protean comfortable for taller or shorter riders?

The seat and the handlebars both adjust for height, so you can set an upright riding position that suits you. The flat step-through deck makes getting on and off easy, and the twist grip throttle has a reverse switch for tight parking moves.

What safety and security features does the Protean have?

The handbrake cuts motor power automatically when you pull it and doubles as a parking brake. An LED headlight, under deck LED lights and a horn help others see and hear you, and an alarm system with a removable key protects it when parked. Dual USB ports charge your phone.

Will Medicare or insurance pay for the RMB Protean?

Heavy Duty Mobility does not work with Medicare or bill insurance, so this is a private purchase. Medicare Part B generally covers a scooter only when it is medically necessary for use in the home, with a written order from a treating provider, through an enrolled supplier. Many heavy duty and recreational scooters like this one do not qualify.

How is my scooter delivered?

Delivery to your curb is free. Check the packaging and the scooter before you sign for it, and call 1-888-233-5563 if anything looks wrong.

Can I pay over time?

Yes. Choose Klarna at checkout to pay over time. See how financing works.

Can I talk to someone before I buy?

Yes. Call 1-888-233-5563. Real people answer, business hours and weekends.

$2,999.99

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