eB eBikeGenius Independent e-bike reviews, backed by hard data
Head to head

Aventon Pace 4 vs Cyrusher Flex Step-Over

Two commuter e-bikes at a similar price, compared on the same normalized specs. Both scored by us, both reviewed in full.

The verdict

Same price and same Genius score, so this comes down to whether you need power and payload (Cyrusher) or a lighter bike with more range on paper (Aventon).

Buy the Aventon Pace 4

Buy the Aventon Pace 4 if you want the lighter bike to haul up steps or into an apartment, and you'd rather have longer claimed range than raw power.

Buy the Cyrusher Flex Step-Over

Buy the Cyrusher Flex Step-Over if you actually climb hills or carry heavy loads: 27 Nm more torque, a bigger motor, wider tires, and 50 lb more payload capacity, at the same price.

The differences that matter

  • Cyrusher Flex Step-Over pulls harder from a stop and on hills, by 27 Nm of torque.
  • Cyrusher Flex Step-Over runs a 250W bigger motor on continuous power.
  • Aventon Pace 4 is 10 lb lighter, which you notice lifting it or carrying it up steps.
  • Aventon Pace 4 claims 11 more miles of range, though both figures are the manufacturer's optimistic "up to" number.

Who each one is for

Aventon Pace 4

Everyday commuters who want a comfortable, low-fuss daily ride with real range and the option to cruise on the throttle, mostly on paved roads and bike paths.

Cyrusher Flex Step-Over

The everyday rider with hills or a longer commute who wants strong power, real brakes, and enough battery for the week without paying a premium.

Spec by spec

Spec Aventon Pace 4Cyrusher Flex Step-Over
Price $1,599 $1,599
Motor (nominal) 500W 750W
Torque 60 Nm 87 Nm
Battery 733 Wh 720 Wh
Claimed range 70 mi 59 mi
Weight 58.2 lb 68.35 lb
Max payload 300 lb 350 lb
Motor type hub hub
E-bike class Class 2 (convertible to Class 3) Class 3
Brakes Tektro Hydraulic w/ E-Cutoff Tektro Fully Hydraulic Disc Brakes 180mm Front + Rear
Drivetrain Shimano Altus 8-Speed Shimano 8-speed
Tire size 27.5" x 2.1" 27.5" x 2.6"

Highlighted values are the better of the two where both brands publish the number. Where a spec isn't published we leave it blank rather than guess.

The short version on each

Aventon Pace 4

What's good

  • The low step-through frame makes getting on and off easy, whether you're in work clothes, hopping off at a light, or loaded down with groceries.
  • A big 733Wh battery backs up the claimed range of up to 70 miles, so most people can go several days of commuting between charges.
  • A throttle lets you ride without pedaling up to 20 mph, handy for pulling away from stops or resting your legs.

What to know

  • The hub motor puts out steady rather than punchy power, so steep climbs feel like more work than they would on a higher-torque bike.
  • There's no suspension and the tires are a fairly narrow 2.1 inches, so this is a smooth-pavement bike, not one for rough roads or trails.

Cyrusher Flex Step-Over

What's good

  • Unusually strong climbing muscle for a commuter, with 87 Nm of torque and a 750-watt motor
  • A 720Wh battery and up to 59 miles of claimed range, enough for several days of commuting between charges
  • Tektro hydraulic disc brakes front and rear, the kind of stopping power a fast bike should have

What to know

  • As a Class 3 bike at 28 mph, it's barred from some multi-use paths that limit e-bikes to 20 mph
  • Cyrusher lists two different payload numbers, so the true limit takes a bit of digging before you haul heavy loads