In this guide (18 sections)
- My picks at a glance
- Side by side
- Fahrbike Roadster 73: the one I rode the most
- Fahrbike Roadster73 Plus: the in-stock option (not ridden)
- MACFOX X7: the one with passenger pegs
- Super73 Z Miami Core: the name brand (not ridden)
- Pedaling: be honest about how you’ll ride
- Passenger pegs and that long seat
- Brakes
- Charging
- Teen riders: ages, helmets and class
- Class and the law
- Ailife X20B: rode it, not confirmed for sale
- How to choose
- Who shouldn’t buy a moto-style e-bike
- FAQ
- Full reviews and videos
- Sources
Moto-style e-bikes, also called moped-style, look like small motorcycles: a long bench seat, fat 20 in tires, a big round headlight and often a lot of suspension. They’re fun to ride, and they’re easy to buy wrong. Most are built around the throttle, many pedal poorly for tall riders, and a few sold online go past the legal limits for an e-bike. My e-bike types guide explains the category.
I’ve ridden two of the bikes on this page, the Fahrbike Roadster 73 and the MACFOX X7. The other two, the Fahrbike Roadster73 Plus and the Super73 Z Miami Core, I haven’t ridden, and I’ve labeled them that way. I also rode the Ailife X20B, but I can’t confirm anyone is selling it right now, so it sits in its own section at the end, not in my picks.
My picks at a glance
- Fahrbike Roadster 73: the one I rode the most and range-checked. Every color was out of stock on Oct 26, 2026.
- Fahrbike Roadster73 Plus: the in-stock version at $899, and the one Fahrbike suggests for taller riders. Not ridden.
- MACFOX X7: the one I rode that has foot pegs for a passenger and a long seat, at $1,599. Single speed.
- Super73 Z Miami Core: the name brand, the lightest here at 59 lb, locked to Class 2, for riders 16 and older. Not ridden.
Side by side
Prices and specs are from each maker’s page, checked Oct 26, 2026, unless noted. Each maker words its weight rating differently, so I’ve used its own label.
| Fahrbike Roadster 73 | Fahrbike Roadster73 Plus | MACFOX X7 | Super73 Z Miami Core | |
|---|---|---|---|---|
| Have I ridden it? | Yes | No | Yes | No |
| Price | $899 Orange or Blue, $1,399 Dark Green; all out of stock | $899 Dark Green, in stock | $1,599 single battery | $2,195 |
| Motor | 750W geared hub, 80 Nm | 750W | 500W, 750W peak | 500W nominal |
| Battery | 48V 15Ah, Samsung 50E cells | 48V 20Ah | 624Wh (48V 13Ah), UL 2271 | 480Wh (48V 10Ah), UL 2271 |
| Maker’s range claim | 35 to 60 mi | Up to 60 mi | 35 mi single, 70 mi dual (MACFOX testing) | 25 to 35 mi |
| Class and top speed | Class 1 to 3, 15.5 to 28 mph | Not listed on the page I read | Class 2, 20 mph | Class 2, 20 mph |
| Gears | Shimano 8-speed | Shimano 7-speed | Single speed | Single speed |
| Brakes | Hydraulic disc, 180 mm | Hydraulic disc | Hydraulic disc | Tektro 2-piston mechanical disc |
| Suspension | 60 mm lockable fork, rear shocks | Not compared here | Front fork, rigid rear | None |
| Tires | 20 x 4 Kenda | 20 x 4 Kenda | 20 x 4.5 front, 20 x 5.0 rear | VEE Trooper 4 in, 20 x 4.5 in tubes |
| Weight | 83 lb | Not compared here | 87 lb | 59 lb |
| Weight rating, maker’s label | Max Load 330 lb | Not compared here | Rider Weight Limit 330 lb | Rider weight limit 325 lb |
| Rider height | 5’3” to 6’4” | Seat riser sold for taller riders | 5’1” and up | 4’6” to 5’11” |
| Charge time (maker) | 6 to 10 h | Not compared here | 5 to 6 h | 5 h |
The weights run from 59 lb (Super73) to 87 lb (MACFOX). None of these is a bike you’ll want to carry up stairs.
Fahrbike Roadster 73: the one I rode the most
How it rode. Watch my Roadster 73 video first. The throttle pulls from zero, and I showed it in PAS 5 (0:57 to 1:04). It gets moving from a stop with no pedaling at all (4:12 to 4:20). The oversized shocks front and rear soaked up bumps well and made it a smooth ride (1:28 to 1:44). The brakes had plenty of stopping power after a few minutes at full throttle (5:11 to 5:33). It has a halo-style LED headlight and an integrated tail light (5:40 to 6:05), a big seat (6:08 to 6:22) and a rear rack (6:25 to 6:28).
The 42 miles. I said I’m about 200 lb, it was winter, and I got 42 miles (3:57 to 4:02). I didn’t say on camera whether that was on throttle, pedal assist or a mix, so I can’t tell you which. Treat it as one cold-weather result from one rider, not a rating. Fahrbike claims 35 to 60 miles.
What I didn’t like. The chain sat so close to the rear tire that it rubbed in some gears (6:37 to 7:09). The tail light wire on my bike was frayed at the plug, which may have been a one-off from shipping or manufacturing (7:20 to 7:57).
Price and stock, as of Oct 26, 2026. When I filmed, it was $1,399 (8:40 to 8:45). I tested the dark green one, and I mentioned it also comes in a bluish color (9:19 to 9:23). On the Roadster 73 page, the Orange and Blue versions are listed at $899 and the Dark Green at $1,399, against a $1,799 regular price. All three were marked unavailable. The page says the green model ran out and points buyers to the Roadster73 Plus.
Fit and frame. Step-through aluminum frame, 400 mm (about 15.7 in) standover, rider height 5’3” to 6’4”, per Fahrbike. That height range didn’t match my experience. At 6’1” and 200 lb (1:49 to 1:51), pedaling was almost comical because the seat sits too low (1:54 to 2:16), and I had barely any leg extension (3:05 to 3:12). I said I’d probably just use the throttle (2:17 to 2:24).
Warranty and returns. 24-month warranty. Returns within 15 days for unused bikes; you pay return shipping, and there’s no restocking fee. Fahrbike Roadster 73 page (checked Oct 26, 2026).
Fahrbike Roadster73 Plus: the in-stock option (not ridden)
I haven’t ridden the Plus. Everything here is from Fahrbike.
The Roadster73 Plus page listed it at $899, down from $1,999, in Dark Green and available on Oct 26, 2026. It has a 750W motor, 20 x 4 Kenda tires, a bigger 48V 20Ah battery, up to 60 miles claimed, a Shimano 7-speed and hydraulic disc brakes.
For tall riders, the original Roadster 73 page says the Plus is a good choice “especially for taller riders thanks to a seat riser accessory.” The Fahrbike Seat Riser is $89, says “Only work for Roadster73 Plus!”, and lists 20 to 30 days for delivery (checked Oct 26, 2026). It doesn’t fit the original Roadster 73. If you’re my height and want to pedal, that riser is the reason to choose the Plus, but I can’t tell you how much it helps because I haven’t tried it.
MACFOX X7: the one with passenger pegs
How it rode. In my MACFOX X7 video, it’s styled like a moped with a long, fixed seat (0:18 to 0:49). It has hydraulic brakes (2:16 to 2:24), a basic display with three assist levels (2:24 to 2:46), a separate headlight switch (3:40 to 4:20) and a thumb throttle that worked in PAS 3 (4:41 to 5:05). There’s a fork up front and no rear suspension (5:19 to 5:26), on tires I called 4.5 in by 20 in (5:26 to 5:32). The kickstand adjusts (7:07 to 7:21), and there’s a USB port (8:50 to 9:01).
What I didn’t like. At about 200 lb, I was disappointed on inclines (2:46 to 3:03), and I said I wanted more power (9:05 to 9:24). Some wires are exposed, and the battery mounts outside the frame (5:46 to 6:05). It’s single speed (7:51 to 8:04). The X7 is not range-tested by me. MACFOX says its 35 and 70 mile figures come from its own internal testing.
Speed and class. In the video I said it was limited to about 28 mph while calling it a 500W Class 2 bike (1:24 to 1:31). Those don’t go together, since Class 2 stops at 20 mph. The MACFOX X7 page lists it as Class 2 with a 20 mph top speed, so go by MACFOX’s number.
Price, as of Oct 26, 2026. $1,599 for the single-battery X7 at MACFOX. My review data has the dual-battery version at $2,098, and other colors cost $100 more. MACFOX says the X7 is UL 2849 certified in the single-battery setup only, and the battery is UL 2271.
Fit and frame. Carbon steel frame, seat height 30 in, rider height 5’1” and up (5’3” and up for the X7L, with a 31.5 in seat), per MACFOX. At 6’1”, the cranks felt short to me, and pedaling was uncomfortable (8:06 to 8:19).
Warranty and returns. 2-year warranty. Returns within 15 days, unused and in the original packaging. MACFOX X7 page (checked Oct 26, 2026).
Super73 Z Miami Core: the name brand (not ridden)
I haven’t ridden, filmed or tested the Z Miami. Everything below is Super73’s published information.
The Z Miami Core page lists it at $2,195 and available as of Oct 26, 2026. It has a 500W nominal motor, a 480Wh UL 2271 battery, a 20 mph top speed, a single speed, Tektro 2-piston mechanical disc brakes and no suspension. Range is listed at 25 to 35 miles, or 25+ miles at 20 mph on throttle only. It weighs 59 lb and has a 325 lb rider weight limit. Tires are VEE Trooper 4 in front and rear, with 20 x 4.5 in inner tubes. Super73 says it’s for riders 16 and older, and that bikes paired with the app after Jan 1, 2025 can only run the Class 2 mode they ship in.
Recall. On Feb 20, 2025, the CPSC announced a recall of about 1,400 model year 2024 Super73 Z Miami SE and Z Adventure Core e-bikes. The brake caliper retaining pin can come loose. The remedy is a free repair kit plus up to $50 toward installation. The recall covers the SE, not the Core Legacy sold here, but if you shop used, check the model and year against Super73’s recall page.
Fit and frame. Aluminum frame, 28 in seat height, rider height 4’6” to 5’11”. It’s built small on purpose.
Warranty and returns. One year on the frame and fork; two years or 500 cycles on the battery and electrical parts (Super73 warranty PDF, checked Oct 26, 2026). Returns only on unopened bikes, within 15 days, with a 15% restocking fee (Super73 returns, checked Oct 26, 2026).
Pedaling: be honest about how you’ll ride
This is the biggest thing to understand about moto-style bikes. They’re throttle bikes that happen to have pedals. On the Roadster 73, at 6’1”, I had barely any leg extension (Roadster 73 video, 3:05 to 3:12). On the X7, the short cranks made pedaling uncomfortable (X7 video, 8:06 to 8:19). The X7 uses a cadence sensor (6:51 to 7:04), so the motor responds to whether you pedal, not how hard. Both Fahrbikes have gears, which help if you do pedal. The X7 and Z Miami are single speed.
If you’re over about 5’10” and want to pedal for real, the Roadster73 Plus with its riser is the only option here that’s addressed tall riders, and I haven’t tested it. Otherwise, look at a regular fat-tire bike in my e-bike types guide.
Passenger pegs and that long seat
A long seat looks like it fits two. That doesn’t mean the bike is rated for a passenger.
- MACFOX X7: It has foldable rear foot pegs, per MACFOX, and I showed pegs on both sides (X7 video, 0:51 to 0:59 and 7:44 to 7:48). I said a passenger would work if they don’t pedal (7:36 to 7:43). The only rating I found from MACFOX is the 330 lb rider weight limit. I didn’t find a separate passenger rating, so keep rider plus passenger under 330 lb.
- Fahrbike Roadster 73: Fahrbike rates the rack at 110 lb max and the bike at 330 lb max load. I didn’t find pegs or a passenger rating, and I didn’t mention pegs in my video.
- Super73 Z Miami: I didn’t find a passenger rating on the page I read.
If carrying a kid is the point, read my best e-bikes with a passenger seat guide first.
Brakes
- Fahrbike Roadster 73: hydraulic disc, 180 mm rotors. Plenty of stopping power after full throttle in my testing (Roadster 73 video, 5:11 to 5:33).
- Fahrbike Roadster73 Plus: hydraulic disc, per Fahrbike.
- MACFOX X7: hydraulic disc (X7 video, 2:16 to 2:24).
- Super73 Z Miami Core: Tektro 2-piston mechanical disc, per Super73. Mechanical brakes need cable adjustment as the pads wear. See the recall note above if you’re looking at an SE.
These are heavy bikes on fat tires, and they reach speed quickly on throttle. Of everything on the spec sheet, the brakes are what I’d care about most.
Charging
- Fahrbike Roadster 73: Fahrbike lists 6 to 10 hours. In my video I said “just a few hours” (Roadster 73 video, 8:01 to 8:15). I didn’t time it, so plan on Fahrbike’s number.
- MACFOX X7: MACFOX lists 5 to 6 hours. Charging is simple, and I said to use the included charger (X7 video, 8:37 to 8:50).
- Super73 Z Miami Core: Super73 lists 5 hours.
Charge with the charger that came with the bike, and don’t leave a battery charging unattended overnight in a bedroom.
Teen riders: ages, helmets and class
Moto-style bikes often get bought for teens, so check the rules before you buy one for a kid.
- Super73 says the Z Miami is for riders 16 and older.
- MACFOX’s FAQ says local rules on rider age, helmets and throttle use vary.
- California: riders under 16 can’t operate a Class 3, and riders under 18 must wear a helmet on any bicycle. Class 3 riders and passengers of every age must wear one. See my California page.
- New York: the minimum age is 16. Helmets are required on Class 3 and for ages 1 to 13 on any bicycle. See my New York page.
The Roadster 73 can be set to Class 3, up to 28 mph, per Fahrbike. The X7 and Z Miami are Class 2. If your teen is under 16 and you live in California, leave a multi-class bike in Class 1 or 2. Look up your own state on my e-bike laws by state page, and read my guide for parents.
Class and the law
Most states use the three-class system: Class 1 is pedal assist to 20 mph, Class 2 adds a throttle to 20 mph, and Class 3 is pedal assist to 28 mph. California caps an e-bike motor at 750W. All four bikes on this page are listed at 750W or less. The Roadster 73’s Class 3 setting is the one that triggers age and helmet rules. My e-bike classes explained and Class 2 vs Class 3 guides go deeper, and /laws/ has the state-by-state rules.
Ailife X20B: rode it, not confirmed for sale
I rode the Ailife X20B (X20B video), but I can’t confirm anyone is selling it right now. Urban Drift’s product page returned “not found” on Oct 23, 2026. An April 2024 archive of that page listed a 1,000W, 85 Nm motor, a 720Wh (48V 15Ah) battery and a 30 mph top speed. That motor and speed are past the limits most states set for an e-bike. My review link points to an Amazon listing I haven’t verified. I can’t confirm a current price, warranty or return policy, so it’s not one of my picks.
How to choose
- You’ll ride on throttle and want an in-stock Fahrbike: the Roadster73 Plus at $899, knowing I haven’t ridden it.
- You want pegs and a long seat, and your rides are flat: the MACFOX X7.
- You’re under about 5’11”, want a name brand locked to Class 2 and the lightest bike here: the Super73 Z Miami, knowing I haven’t ridden it.
- You want the Roadster 73 I rode: wait for it to come back in stock.
Who shouldn’t buy a moto-style e-bike
- Tall riders who want to pedal. Both bikes I rode were cramped at 6’1”.
- Anyone who needs a light bike. These run 59 to 87 lb.
- Riders who need to carry a passenger often. Look at bikes with a rated passenger setup instead.
- Riders who live on steep hills. The X7 disappointed me on inclines, and two of these are single speed. See my best e-bikes for hills.
- Parents of kids under the maker’s or state’s minimum age. Super73 says 16 and up, and New York’s minimum is 16.
FAQ
Are moto-style e-bikes legal? The four on this page are listed at 750W or less and 20 or 28 mph, which fits the three-class system most states use. Some sold online go past those limits. Check your state.
Which one is lightest? The Super73 Z Miami Core at 59 lb, per Super73. The MACFOX X7 is heaviest here at 87 lb.
Can two people ride one? The MACFOX X7 has rear foot pegs, but I didn’t find a separate passenger rating. Keep the total under its 330 lb rider weight limit.
Was your 42-mile Roadster 73 result on throttle? I didn’t say on camera. It was winter, and I’m about 200 lb. Treat it as one data point.
Is the $899 Roadster 73 in stock? Not on Oct 26, 2026. The $899 Orange and Blue versions and the $1,399 Dark Green were all unavailable. The Roadster73 Plus was $899 and in stock.
Was the Super73 Z Miami recalled? The model year 2024 Z Miami SE was, in February 2025, for a brake caliper pin. The Core Legacy sold now isn’t covered. See the CPSC notice.
Do teens need a helmet? In California, anyone under 18 does, on any bicycle. In New York, it’s ages 1 to 13, plus everyone on a Class 3. Other states vary.
Full reviews and videos
- Fahrbike Roadster 73 review and video
- MACFOX X7 review and video
- Super73 Z Miami research profile (not ridden, no video)
- Ailife X20B review and video (not confirmed for sale)
Sources
- My Roadster 73 video: https://www.youtube.com/watch?v=5smXU0FW2AE
- My MACFOX X7 video: https://www.youtube.com/watch?v=wz74-wruiCc
- My Ailife X20B video: https://www.youtube.com/watch?v=uXP3V7bPRAM
- Fahrbike Roadster 73 page (variant prices and stock, specs, warranty, returns): https://fahrbike.com/products/moped-style-ebike-roadstar73 (checked Oct 26, 2026)
- Fahrbike Roadster73 Plus page: https://fahrbike.com/products/fahrbike-roadster73-plus-moped-style-ebike (checked Oct 26, 2026)
- Fahrbike Seat Riser: https://fahrbike.com/products/seat-riser (checked Oct 26, 2026)
- MACFOX X7 page (price, specs, pegs, UL, warranty, returns, FAQ): https://macfoxbike.com/products/macfox-x7 (checked Oct 26, 2026)
- Super73 Z Miami Core page: https://super73.com/products/super73-z-miami-core-legacy (checked Oct 26, 2026)
- Super73 warranty: https://cdn.shopify.com/s/files/1/1374/3231/files/Super73_Warranty_Z_0324.pdf?v=1712171161 (checked Oct 26, 2026)
- Super73 returns: https://super73.com/pages/returns-and-cancellations (checked Oct 26, 2026)
- CPSC recall, Feb 20, 2025: https://www.cpsc.gov/Recalls/2025/Super73-Recalls-Z-Miami-SE-and-Z-Adventure-Core-Electric-Bicycles-Due-to-Crash-and-Injury-Hazards (checked Oct 26, 2026)
- Super73 recall page: https://super73.com/pages/product-recall (checked Oct 26, 2026)
- Urban Drift X20B page, Wayback Machine archive of Apr 17, 2024 (live page “not found” Oct 23, 2026)
- State rules: /laws/california/, /laws/new-york/, /laws/
Check prices for the bikes in this guide
Prices change often, so these links go to the current listing. I only show a price where it's in my review data.
- Fahrbike Roadster 73 · $899
- MACFOX X7 · $1,599
- Super73 Z Miami · $2,195
Some of these are affiliate links: I may earn a commission at no extra cost to you. Disclosure

