HKM-F5S Electric Scooter 350W 36V 18Ah 648Wh 21.7 mph 34.2 lb Hydraulic Damping 8-Inch Pneumatic Tyres 43% Less Vibration

350W · 36V 18Ah 648Wh · 36.9 mi · 21.7 mph · saddle seat · 265 lb load

A Cushioned Saddle and 43 Percent Less Vibration on Every RideSit Down Comfort for the Long Ride

The F5S pairs a 350W rear-hub motor with a 36V 18Ah pack of 21700 cells, returning a 36.9-mile maximum range and a 34.2-mile real-world average at a top speed of 21.7 mph. The difference from a standing scooter is the cushioned saddle on an adjustable seat post, and front and rear hydraulic damping cuts vibration by 43 percent on broken pavement. 8-inch pneumatic tires with a puncture liner roll quiet, the 6061-T6 frame carries up to 265 pounds at a 34.2-pound net weight.

The F5S is the seated folder of the line, built for riders who would rather sit through the miles. A 350W brushless rear-hub motor drives the deck with smooth, quiet assist, and the throttle response stays progressive so takeoffs are predictable in traffic. The cushioned saddle sits on an adjustable seat post, so the riding position fits the rider instead of the other way around, and the one-step folding latch still folds the deck flat for trunk storage.

Range and speed stay honest. The 648Wh pack returns a 36.9-mile maximum and a 34.2-mile real-world average per charge, and rider weight, terrain and temperature all move those numbers. A 21.7 mph top speed covers the open stretch, and hydraulic damping cuts vibration by 43 percent so the saddle stays comfortable on rough ground.

At a Glance

• Model — HKM-F5S | Seated Long-Range Scooter
• Motor — 350W brushless rear-hub motor
• Battery — 36V 18Ah / 648Wh (10S4P 21700 cells)
• Range (Max) — 36.9 mi (59 km)
• Range (Real-World Avg) — 34.2 mi (55 km)
• Top Speed — 21.7 mph (35 km/h)
• Seat — Cushioned saddle on an adjustable seat post
• Suspension — Front and rear hydraulic damping, 43% less vibration
• Brakes — Front electronic and rear mechanical disc
• Tires — 8-inch pneumatic with puncture liner
• Net Weight — 34.2 lb (15.5 kg)
• Load Rating — 265 lb (120 kg)
• Charge Time — 4.5 hours (0 to 80%)
• Water Resistance — IP54

Frame, Motor and Deck

The frame is 6061-T6 aerospace aluminum in Black, strong for its weight and resistant to corrosion over seasons of daily use. The cushioned saddle on an adjustable seat post is the point of this model - it fits the rider and takes the load off the legs on the long straight.

A 350W brushless rear-hub motor drives the deck with quiet, progressive assist - smooth from a standstill and predictable in traffic. The top speed of 21.7 mph covers the open stretch, and a 30-degree climb angle keeps short ramps on schedule.

Front and rear hydraulic damping cuts vibration by 43 percent, and 8-inch pneumatic tires with a puncture liner add their own cushion while shrugging off flats. The tread clears gravel and wet tarmac without fuss, and seated or standing the ride stays composed on the daily loop.

• Frame: 6061-T6 aerospace aluminum, 34.2 lb (15.5 kg) net
• Seat: Cushioned saddle on an adjustable seat post
• Motor: 350W brushless rear-hub with progressive throttle
• Suspension: Front and rear hydraulic damping, 43% less vibration
• Tires: 8-inch pneumatic with puncture liner
• Brakes: Front electronic plus rear mechanical disc
• Console: Round LED display - speed, battery, mode
• Load: 265 lb (120 kg) rider and cargo

Front electronic braking scrubs speed at the lever and a rear mechanical disc adds bite - the brake cable runs to the rear caliper in plain sight, so stops end short and straight. A 3W LED headlight covers the early and late ride and a rear brake LED signals the stop.

Battery, Range and Charging

The 36V 18Ah pack stores 648 watt-hours in a 10S4P layout of 21700 cells, the energy behind the 36.9-mile maximum and the 34.2-mile real-world average. The management system balances cells and guards against over-current and over-discharge, and the cells are rated for about 800 cycles to 70 percent retention. Rider and cargo weight, terrain and temperature all move the range figure, and cold weather trims capacity until the pack warms.

Plug into any standard wall outlet and the pack hits 80 percent in about 4.5 hours on the 42V 2A charger - no disassembly, no special equipment, and a charge costs pennies. The charge port keeps its cover closed against dust and road spray. Store the scooter indoors at room temperature, top it up before a long weekend away, and avoid parking it warm and full right after a hard ride.

The round LED console shows mode, speed and battery as you go, so pace and range stay visible all ride. The pack is sized for the weekly loop of short trips plus the longer seated weekend run, and the puncture liner keeps the routine flat-free. Keep the tires firm and the real-world average stays within reach.

Who It Fits and How It Rides

It fits the rider who would rather sit through the miles. The saddle carries the load off the legs, the deck takes up to 265 pounds of rider and cargo, and the one-step fold still works for trunk storage and closet parking.

On the road it rides composed. Hydraulic damping cuts vibration by 43 percent, the saddle stays comfortable on broken ground, and the front electronic and rear disc brakes end stops where intended.

• Seated commutes where 34.2 mi of real-world range covers the loop
• Broken pavement on damping that cuts vibration by 43 percent
• Riders up to 265 lb who want comfort without a heavy build
• Trunk and closet parking at 34.2 lb with the one-step fold
• Rides in light rain, sealed to IP54 - not for soaking or pressure washing

What's in the Box

Before the first ride: set the seat height, check the folding latch is fully locked, confirm both brakes bite, and set the tire pressure to the marked range. HKM-F5S ships in one carton with the product and the parts listed above - check each item against this list before the first use.

Color and Finish

Black covers the frame, the deck, both fenders and the saddle, with a matte read rather than a gloss coat. The finish hides road film better than a bright lacquer after a winter of commuting, and the 6061-T6 aluminum under it stays corrosion resistant through seasons of daily use.

A small orange band at the fork crown is the only accent, and the round LED console sits in a dark bezel at the bar center. The saddle is black with a textured top. Wipe the finish with a damp cloth; solvents dull it.

Battery Care and Maintenance

Charge soon after a ride rather than parking it warm and full, store the pack indoors at room temperature, and keep the charge-port cover closed so dust and moisture stay out. Ten minutes a month keeps the range where it belongs: wipe the deck and stem with a damp cloth after wet rides, check the pneumatic tires for cuts and embedded debris and keep the pressure in the marked range, and skip the pressure washer.

Confirm the folding latch is locked before every ride - a loose latch clicks under load and the noise disappears once it is locked. Check the seat-post clamp is tight and the saddle rails are snug, check the rear disc pad condition, and if the lever still reaches the bar, have the circuit serviced.

Specifications

Frequently Asked Questions

Service and Policies

Coverage that lasts beyond the box. Orders ship free with a tracking number in 2 to 5 business days. From delivery, the product is protected for 180 days against manufacturing defects and transit damage, returnable within 30 days for a full refund, and covered by a 24-month parts-and-labor warranty on manufacturing defects. Four policies, one idea: ship it free, protect it for 180 days, take it back for 30, and stand behind it for two years.

HKM-F5S · seated long-range folding electric scooter · 350W brushless rear-hub motor · 21.7 mph (35 km/h) top speed · 30-degree climb angle · 36V 18Ah 648Wh pack in a 10S4P layout of 21700 cells · 36.9 mi (59 km) maximum range and 34.2 mi (55 km) real-world average · cushioned saddle on an adjustable seat post · front and rear hydraulic damping cutting vibration by 43 percent · 8-inch pneumatic tires with puncture liner · front electronic and rear mechanical disc brakes · 6061-T6 aerospace aluminum frame · round LED console with speed, battery and mode · 265 lb (120 kg) payload · 34.2 lb (15.5 kg) net weight · sealed to IP54 against road spray · 0 to 80 percent charge in 4.5 hours · about 800 cycles to 70 percent retention · Black matte finish with an orange fork accent · built for the seated commute.