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Reviews · 9 min

Urtopia Carbon Atom: Everything You Need to Know

Carbon step-through at $2,499. The block is 750W rated, 1,250W peak, 90 Nm, and 48V 17.4Ah labeled 835Wh. Forty-eight times 17.4 is 835.2. A June brief prints 802Wh. The page’s range chip says 93 miles. A review’s claim line says 95.

By SickEBike desk

The short answer

The Urtopia Carbon Atom is a carbon step-through at $2,499, not the Joy. The block says 750 watts rated, a 1,250 peak, 90 newton-meters, and 48V 17.4Ah labeled 835Wh. Forty-eight times 17.4 is 835.2. A June 27, 2026 brief prints 802Wh. The range chip says 93 miles in Eco, on the flat, pedals only, at 180 pounds. A review claim says 95. This page does not print Find My.

The Urtopia Carbon Atom is a carbon step-through at $2,499, and the page calls it the first 750W carbon bike in that line. The spec block says rated 750W, peak 1,250W, a rear hub, 90 Nm, and 48V 17.4Ah labeled 835Wh. Forty-eight times 17.4 is 835.2. The top figure is 28 mph. A thumb line stops at 20. The block says Class 2 or 3. Payload is 330 lb. Fork travel is 80 mm, and a suspension seatpost is 30 mm. Tires are 26 by 2.4. The range chip says up to 93 miles. The footnote limits that chip to a 180 lb rider, Eco, flat roads, pedal assist only, and no thumb. The list said about $1,999 and mentioned Find My. This product page does not print Find My. The row links here.

Bike mass on that same block is 61.7 lb, also written 28 kg. Net mass is 58 lb, also 26.5 kg, with the pack. Without the pack the net line is 50 lb, also 22.7 kg. A note says stated masses tolerate under 5 percent, and that net excludes rack, kickstand, fender, and pedals. A city tile says 61 lb.

A dark carbon step-through bicycle on a greenway at sunrise
A slim step-through on a greenway at sunrise. Not a product photo, and not the 20-inch utility carbon.

835 on the block, 802 in a brief, 93 miles and also 95

The product block, a June 27 brief, two June 25 review prints, and an August ride story. Not averaged.

What is printed
Product block$2,499. Rated 750W, peak 1,250W, 90 Nm, rear hub. Pack: 48V 17.4Ah, labeled 835Wh, LG, removable, UL 2271, and the bike also names UL 2849. Range up to 93 miles with the Eco footnote. Top 28 mph. Thumb to 20. Class 2 or 3. Payload 330 lb. Shimano 8-speed. Masses: 61.7, a net 58, and 50 without the pack. A city chip says 61 lb beside the 93-mile line.
Other printsA June 27, 2026 brief: 802Wh, 58 lb without accessories, a 1,250W peak, 90 Nm, $2,499, with fenders and a kickstand included in that price note. A database card: 802Wh, a peak near 1,250W called unconfirmed from a display reading, about 64 lb with fenders and sealant against an advertised 58 that omitted fenders and a kickstand, and a full-power loop of 45 miles capped at 20 mph. The June 25 written spec list: 48V, 835 Wh, a claim of up to 95 miles, claimed mass 58, scale 65, five assist levels, loops of 71.2 miles in Eco and 45.3 in Boost. That prose also says the bike ships as Class 1 and 2 at 20 mph, with four named modes, and can be opened so assist reaches 28 while the thumb stays at 20. An August 17, 2026 ride story: 835Wh, up to 95 miles, a ride of about 75 with charge remaining, three modes named, and a stated 58 lb.

Do not average 835 and 802. Only 17.4 amp-hours is printed, and that product is 835.2, which matches the 835 label and does not match 802. Do not average 93 and 95. Do not average 61.7, 61, 58, 50, 64, and 65. The 58 is a net figure that leaves off hardware a scale will include. Quote which mass and which assist. Rated 750 is not under the federal less-than-750 line. Peak 1,250 is the other number. Assist counts in print are four, five, and three. Do not pick a middle.

Forty-eight times 17.4 is 835.2. The block prints 835Wh and up to 93 miles. A June 27 brief prints 802Wh. A review’s claim line prints 95 miles. This page does not print Find My.

Who it is for

It is the carbon commuter if $2,499 and a rear hub are the bike you meant, and if you can lift the mass on a scale rather than the 50 lb line with the pack removed. It is not the Urtopia Carbon Joy. That one is a 20-by-3 utility carbon, on sale at $1,899 from $2,399, with a 529.2Wh pack and a spec that says 20 mph unless you unlock 25. A rear hub does not use the cassette the way a crank motor would. The hub versus mid-drive page is that split.

Pedals are on the bike. Class 2 or 3 on the block, a ship note of Class 1 and 2, and an unlock toward 28 are three different stickers. The class chart is why a 28 mph assist with a 750-watt rated motor is not a clean federal bicycle even when the thumb stops at 20. The watt-hour page is why 835.2 is the arithmetic and 802 is a different printed label.

Questions people ask

Why do 835 and 802 both exist?+

The product block prints 17.4Ah and an 835Wh label, and 48 times 17.4 is 835.2. A June 27, 2026 brief prints 802Wh. One review summary also prints 802. The June 25 spec bullets on the written test print 835. This desk did not find an amp-hour figure that multiplies to 802. Do not average the two labels.

Which mass is the bicycle?+

One page prints three: 61.7 pounds, also written 28 kilograms; a net 58 pounds with the pack, also 26.5 kilograms; 50 pounds without, also 22.7 kilograms. Net excludes rack, kickstand, fender, and pedals, and the tolerance note says under 5 percent. A city tile says 61. One scale, with fenders and sealant, was about 64, against an advertised 58 that omitted fenders and a kickstand. Another scale was 65.

Is the chip 93 miles or 95?+

The page says up to 93, and the footnote limits that to a 180-pound rider, Eco, flat pavement, pedal assist, and no thumb. A review’s claim line and an August 17, 2026 ride story both say up to 95. Measured loops: 45 miles at full power capped at 20 mph on one card, 45.3 in Boost and 71.2 in Eco on the written test, and about 75 with charge left in the August ride. Quote the assist.

How many modes, and which class ships?+

A page extract listed four levels. The spec bullets say five. The written review names Eco, Tour, Boost, and Turbo, and says it ships as Class 1 and 2 at 20 mph, then can be opened so assist reaches 28 while the thumb stays at 20. An August story names three modes. The product block says Class 2 or 3 and a 28 mph top. Rated output is 750 watts, which is not under the less-than-750 line. This crawl did not print Find My.

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