The verdict
The SS 4.0 is the sensible all-rounder of this list. E Ride Pro gives it 18 kW peak, a swappable 72V 50Ah pouch-cell battery (3,600 Wh), SR-level FASTACE suspension and a 161 lb unit weight, for $4,999 on its own store on November 12, 2026. It charges from 20 to 90% in about 3.5 hours and comes with a one-year warranty. The catch: it's sold for off-road and closed-course use only, and it's 35 lbs heavier than a Light Bee.
What we like
- 18 kW peak, 7 kW rated, 0-30 mph in about 2 seconds (brand)
- 3,600 Wh swappable pack: 64+ miles at 25 mph, per E Ride Pro
- Same FASTACE suspension platform as the SR, 220 mm travel
- Four modes including Race and Reverse
- One-year warranty, 302 lb max rider weight
The catch
At 161 lbs it is a solid step up from the 125 lb Light Bee class, and the seat height isn't on the page we read: sit on one or ask before you buy if you are short. It's an off-road and closed-course bike, full stop.
Who it is for, who should skip it
Buy it if
- You want the most battery per dollar among the light e-motos
- You are a bigger rider: the SS 4.0 is rated for 302 lbs
- You like a bike that can be tuned without opening the frame (Race mode, Reverse, regen)
Skip it if
- You need something a 13-year-old can pick up: the Rawrr Mantis Mini R is 115.7 lbs
- You want a road-legal path: look at the KTM Freeride E or the Stark VARG EX
What changed from the SS 3.0
The SS 3.0 built E Ride Pro's name: long range in a light e-moto. The 4.0 keeps the idea and fixes the bits riders asked about. E Ride Pro and REV Rides list 18 kW peak (up from 16 kW), a new 72V 50Ah pouch-cell battery at 3,600 Wh, an added Race mode, and the SR's suspension: 220 mm of travel, a 775 mm front end and a 600 lb rear spring.
The SS 3.0 was showing as sold out on E Ride Pro's store when we checked, so the 4.0 is the one to buy.
Video: "E Ride Pro SS 4.0 & 3.0 Unboxing, Assembly & Setup Instructions | Box to Road", REV Rides on YouTube. Not made by us; chosen because it shows the bike or the topic clearly.
Range you can plan a day around
E Ride Pro says more than 64 miles at 25 mph and more than 100 miles at 15 mph. Those are steady-speed numbers on a good day. On real singletrack with climbs, cut them hard. But 3,600 Wh is still the biggest pack you'll find on a bike this weight on our list, and that's what matters when you're two valleys from the truck.
Charging takes about 3.5 hours from 20 to 90%. The pack is swappable, so a second battery is the classic upgrade if you ride all day.
Built to take a beating
The details are the boring, important kind: a reinforced frame and swingarm, a widened 22 mm drive pulley with mud grooves, a 58-tooth sprocket on a 428 chain, straight-pull hubs, 3 mm rotors with 100 mm calipers and DOT 4 hydraulics. None of it is glamorous. All of it is what breaks first on cheaper bikes.
The switchable headlight, tail light and blinkers are there for trail use. They don't make it street legal, and the dealer says so.
How the E Ride Pro SS 4.0 earns its 9.2
Our formula gives each of seven criteria a score out of 10 from the published figure, then weighs them. Here is the E Ride Pro SS 4.0's line, with each criterion's weight in the overall score.
| Criterion | Score | Weight |
|---|---|---|
| Price, against the catalog median (dated, US) | 7.6/10 | 25% |
| Peak motor power (kW) | 8.5/10 | 15% |
| Battery energy (Wh) | 8.1/10 | 15% |
| Weight with battery (lighter is better) | 7.0/10 | 15% |
| Published warranty | 6.0/10 | 10% |
| Road status (brand wording) | 4.0/10 | 10% |
| Charging time (published) | 7.0/10 | 10% |
Weighted together, that's 9.2/10 on our published scale, No. 2 of 14. Every criterion here is published, which helps. The full formula is on our methodology page.
E Ride Pro SS 4.0 specs
| Peak power | 18 kW peak, 7 kW rated |
|---|---|
| Battery | 72V 50Ah swappable pouch-cell pack, 3,600 Wh |
| Weight | 161 lbs unit weight |
| Top speed | 62 mph (brand) |
| Range | 64+ miles at 25 mph, 100+ miles at 15 mph (E Ride Pro) |
| Max rider weight | 302 lbs |
| Charging | About 3.5 hours from 20% to 90% |
| Warranty | One-year warranty coverage |
| Road status | Designed and sold for off-road and closed-course use only. |
| Rider age | Buyers must be 18 or have parental consent (dealer page) |
| Battery per $100 | 72 Wh per $100 |
| Power-to-weight | 11.2 kW per 100 lbs |
Figures are the brand's or the US dealer's, read on November 12, 2026. Anything not listed above wasn't published on the pages we read, and our formula scores it as not stated.
What's in the box
The bike with its 72V 50Ah battery and charger. E Ride Pro offers a long or short seat; check which one your order ships with.
Getting started
REV Rides published a video on unboxing and assembling the SS 4.0 and 3.0: bars, front wheel, fender and a once-over of every bolt. Charge fully, set tire pressure and sag, and spend your first hour in Eco before you switch to Race.
Whatever bike you buy, set the softest mode for the first rides, check every bolt after the first few hours, and keep the battery charged between 20 and 80% when you store it, unless the manual says otherwise.
Hidden costs
Shipping or dealer prep, a second battery if you want all-day rides, riding gear, and the usual wear parts: tires, the 428 chain and sprockets, brake pads. Upgraded controllers exist for this platform, but they can void the warranty.
Plan the total, not the sticker: freight or dealer prep, a full set of gear (helmet, goggles, boots, gloves, armor; see our safety gear guide), a stand, and wear parts. Road rules vary by state; read are electric dirt bikes street legal? before you ride on public roads.
Questions to ask the seller
- Long or short seat, and what is the seat height of each?
- How long is the wait on a second battery?
- Is the one-year warranty handled by E Ride Pro or the dealer?
- Which modifications void it?
Price and sources
$4,999 at E Ride Pro on November 12, 2026 (E Ride Pro official store (US)). Available in E Ride Pro's store data on November 12, 2026. Prices on e-motos move often: check the live price before you buy.
Sources read on November 12, 2026: eridepro.com/products/pro-4-0 · revrides.com/products/e-ride-pro-ss-4-0
Alternatives
The three bikes closest in price, and how they differ on the published specs:
E Ride Pro SR costs $200 more ($5,199), hits harder (25 kW peak against 18 kW peak), is 22 lbs heavier (183 lbs), doesn't publish a warranty on the pages we read. It scores 8.7/10, below the E Ride Pro SS 4.0's 9.2, so we'd only pick it for that one strength.
Altis Sigma costs $300 more ($5,299), hits harder (25 kW peak against 18 kW peak), carries 198 Wh less battery, is 37 lbs heavier (198 lbs). It scores 8.8/10, below the E Ride Pro SS 4.0's 9.2, so we'd only pick it for that one strength.
Segway Xaber 300 costs $300.99 more ($5,299.99), hits harder (21 kW peak against 18 kW peak), carries 430 Wh less battery, is 26 lbs heavier (187 lbs). It scores 8.1/10, below the E Ride Pro SS 4.0's 9.2, so we'd only pick it for that one strength.
Head-to-heads and rankings, and the rankings where the E Ride Pro SS 4.0 appears:
