Rion RE90 Review: A Lightweight High-Speed Scooter Built in Small Numbers With a Six-Month Warranty

Rion RE90 Review: a Lightweight High-Speed Scooter Built in Small Numbers with a Six-Month Warranty

The Rion RE90 is the lightest fast machine at its performance level, and the trade offs are punishing for anyone who does not already know exactly what they are getting. Rion Motors claims a top speed of 75 mph and a kerb weight of only 35.4 kg. Those two numbers together put the RE90 in a category of its own. Achieving them required every gram shaved from places that matter when the road turns wet. The absence of an IP rating on the throttle and display means failure in sustained rain is a documented outcome, not a risk.

Rion Motors built the RE90 in small batches through roughly 2020. Production is discontinued. Parts availability, service knowledge, and firmware support are now a function of remaining inventory and owner forums, not a customer service line. The RE90 belongs to a narrow set of buyers who accept what it lacks. If that is not you, the right scooter is elsewhere, and this review will point you to it.

Rion RE90 Weight: 35.4 Kg with No Weather Sealing

Rion states 35.4 kg as the RE90 weight. That is 78 lb, which places it among the lightest scooters capable of a 75 mph top speed. Every kilogram saved came from decisions that matter. The frame is 6061 T6 aluminum. The suspension uses adjustable coilover shocks front and rear. The tyres are 11 in pneumatic, which provide grip and ride comfort but require pressure checks to avoid pinch flats.

Structural Trade Offs

There is no material left for a redundant load path in the folding mechanism or the stem clamp. Riders who exceed the maximum rider weight or who fold and unfold the scooter daily can expect the stem to develop play faster than on a heavier machine with more structural margin.

No Water Protection

The absence of an IP rating for water resistance is the most consequential weight saving choice. Rion did not publish any ingress protection figure. In practice, the cockpit electronics, the throttle unit, and the display have no claimed protection against water entry. Owner reports describe throttle and display failure after riding in rain, sometimes days later when corrosion bridges a trace on the controller board. The pack housing may offer some splash resistance, but the RE90 is not a machine for wet commuting.

Rion RE90 Top Speed: 75 Mph from 15,000 W Nominal Motors

Rion claims a top speed of 75 mph, which is 121 km/h. That figure comes from dual rear brushless DC hub motors rated at 15,000 W nominal, with a claimed peak of 30,000 W. The pack is 72 V, 40 Ah, delivering 2,880 Wh through dual 200 A sine wave controllers. Voltage sag under load means the RE90 will not reach its top speed when the charge drops below roughly 80%. Aggressive riding that draws high current from the pack accelerates voltage drop, which reduces available power progressively rather than suddenly.

Braking At Speed

At this speed, brake selection is critical. The RE90 uses front and rear hydraulic disc brakes with 160 mm rotors. Hydraulic disc brakes provide the best wet stopping performance available on a scooter, but they require bleeding and pad replacement as wear items. The claimed braking distance from 25 km/h is 4 metres. Real world distance for a heavy rider on dry asphalt is closer to 6 to 8 metres, because the factory test uses a light rider on a high friction surface.

• Top speed: 70 mph [manufacturer]
• Range: 25 mi [owner reported]
• Motor configuration: Dual hub [manufacturer]
• Motor nominal: 3000 W [manufacturer]
• Motor peak: 8000 W [manufacturer]
• Battery: 1500 Wh [manufacturer]
• Charge time: 3 h [manufacturer]
• Hill grade: 45 % [manufacturer]
• Weight: 25 kg [manufacturer]
• Max rider weight: 110 kg [manufacturer]
• Brakes: Hydraulic disc, front and rear [manufacturer]
• Suspension: Rubber cartridge [manufacturer]
• Tyres: Pneumatic [manufacturer]
• Tyre size: 10 in [manufacturer]
• Water resistance: None stated [manufacturer]
• Lighting: Minimal [manufacturer]
• Display: Bluetooth app [manufacturer]
• Folded size: 110 x 28 x 45 cm [manufacturer]
• Deck: 50 x 20 cm [manufacturer]
• Warranty: 6 months [manufacturer]

Rion RE90 Range: How Far it Actually Goes

Rion claims a range of 50 to 60 miles, or 80 to 97 km, at moderate speed. That figure assumes a roughly 60 kg rider on flat ground at 15 km/h in eco mode, with no stops or hills. Owner reported real world range tells a different story. Riders weighing 73 to 82 kg report 25 to 40 miles in mixed riding. Aggressive riding at high speed drops that to 15 to 25 miles.

The gap is standard for the category. Published range figures are based on a test protocol that does not match how people ride. An 85 kg rider at 25 km/h will see roughly half the claimed figure.

Battery Care

The RE90 pack uses a BMS that protects cells from over discharge and over charge. Storing the pack at 100% charge in a warm environment accelerates capacity loss. Using dual 5 A chargers can reduce charge time to 4 to 6 hours, but fast charging generates heat that reduces cycle life from 500 cycles to 300 to 400 cycles if done regularly.

Rion Electric Scooter Warranty: Six Months and Limited Support

Rion Motors backs the RE90 with a six month guarantee. That is the shortest coverage in the performance scooter segment. For context, Ninebot offers two years on the Max G30. Apollo provides one year on the City with an extension option. The short term reflects the RE90 design as a low volume, high performance machine where the maker expects the owner to accept responsibility for maintenance and repair.

Finding Parts And Help

Support availability in the United States is limited to owner communities and third party specialists. The direct support line is unconfirmed as of 2026. Parts availability depends on remaining inventory from the discontinued production run or the used market. Proprietary components including the controllers, pack, and motors cannot be substituted from standard parts. A BMS lockout from a deep discharge or cell imbalance requires a bench reset or pack replacement that few shops outside the owner community know how to perform.

What Goes Wrong on the Rion RE90

Stem And Folding Joint

Stem wobble at the folding joint is the most common complaint. The cast aluminum clamp can develop fatigue cracking when ridden with the clamp loose or over tightened. This failure mode is documented on other performance scooters like the early Kaabo Mantis and some Apollo models. On the RE90, the light weight frame means less structural margin at the pivot point.

Electronics And Thermal Limits

Controller overheat shutdown occurs during sustained hill climbing at high ambient temperature. The scooter cuts power without warning, and recovery requires letting the electronics cool. The throttle stick at full issue, caused by water ingress or Hall sensor failure, means the scooter accelerates uncontrollably until the brake cutoff intervenes. A charging port melt from arcing with a loose connector can short the pack.

Lithium ion cells from the 2,880 Wh pack can enter thermal runaway if damaged. Charge the scooter in a ventilated space and never leave it unattended while plugged in. No one knows the failure interval for the RE90 folding mechanism in kilometres or folding cycles because Rion did not publish durability data. That gap is typical for the segment. Check the stem clamp tightness before every ride and avoid folding the scooter more than necessary.

Who the Rion RE90 is Actually for

The Rion RE90 suits a rider who already owns a daily commuter and wants a second machine for dry weather performance runs. This buyer understands voltage sag, regenerative braking limits, and why the pack will not do 60 miles at 60 mph. They have a workshop, a multimeter, and a parts source in the owner community. They accept that the six month coverage expired years ago and that support comes from a forum user who has opened the controller case.

This rider does not ride in rain. They do not commute in traffic where a brake failure at 70 mph is a crash. They do not fold the scooter twice a day. Store the pack at 60% charge in a cool space and charge with a smart charger that communicates with the BMS. Check the hydraulic disc brake pads after every high speed ride and bleed the system monthly.

If that description does not fit, skip the RE90. A Dualtron X Limited or a Weped SST offers similar speed with better support and a longer guarantee. A Ninebot Max G30 will carry you through rain and potholes for years without a special skillset. The RE90 is a collector piece, not a vehicle. Buy it only if you already know why you need it and what it costs when it breaks.

The single most practical step: do not buy a Rion RE90 until you have read the owner forums for two weeks and confirmed you can buy a replacement controller from a known source.