Bicycles: Cannondale SuperSix Evo vs. Rad Power Bikes RadCity 5 Plus

Quick Verdict

The Cannondale SuperSix Evo is a high-performance road bike suited for experienced cyclists seeking speed and agility. The Rad Power Bikes RadCity 5 Plus is an electric bike designed for commuting and recreational riding, offering assistance and comfort for a wider range of riders.

The Cannondale SuperSix Evo is a lightweight road bike designed for performance, while the Rad Power Bikes RadCity 5 Plus is an electric bike designed for commuting and general use.
The SuperSix Evo prioritizes speed, agility, and climbing ability, while the RadCity 5 Plus emphasizes comfort, convenience, and ease of use with its electric motor.
The SuperSix Evo uses high-end components like carbon fiber frames and Shimano/SRAM groupsets, while the RadCity 5 Plus uses more basic components focused on durability and value.
The RadCity 5 Plus features an electric motor and battery, providing assistance for easier riding, especially on hills and longer distances. The SuperSix Evo relies solely on the rider's power.
The RadCity 5 Plus has a step-through frame option for easier mounting and dismounting, while the SuperSix Evo has a road race geometry designed for efficient power transfer.

Key features – Side-by-Side

Attribute	Cannondale SuperSix Evo	Rad Power Bikes RadCity 5 Plus
Frame Material	Carbon fiber (BallisTec, Hi-MOD, Lab71 options)	Aluminum (6061 aluminum alloy)
Fork Material	Carbon fiber (matching frame material, Hi-MOD options available)	Spring fork with 50 mm travel, featuring lockout and preload adjustment
Groupset	Shimano 105, Ultegra, Dura-Ace, SRAM Force eTap AXS	7-speed Shimano Altus (some models may have a Microshift Mezzo derailleur)
Brake Type	Rim brake or disc brake (typically hydraulic)	Hydraulic disc brakes (Rad Power Bikes approved hydraulic brake calipers with 180mm rotors)
Wheelset	Mavic Aksium, Fulcrum, Cannondale HollowGram (carbon options available)	Double wall aluminum alloy rims, 36H
Tire Size	700x25c (clearance for up to 30mm, some users fit larger)	27.5" x 2.0"
Weight	Frame: as low as 770g (56cm frame), Complete bike: 6.8kg to over 8kg	Around 64-65 lbs (29.26 kg). Weight without the battery is approximately 56.4-57.4 lbs.
Motor Power (for RadCity)	Not available	750W brushless geared hub motor
Battery Capacity (for RadCity)	Not available	48V, 14Ah, 672 Wh (Some models list a range of 589-672 Wh)
Range (for RadCity)	Not available	Estimated 28-50 miles per charge
Gearing	Compact gearing common (e.g., 50/34 chainrings with 11-30 cassette), other configurations available	1x7 speed with an 11-34T cassette
Frame Geometry	Road race geometry (balance of stability and agility), recent models have taller stack and shorter reach	Available in high-step and step-through frame styles. Rider height: High-Step: 5'4" - 6'5". Step-Thru: 4'8" - 6'0". Total payload capacity: 275 lbs.
Price	Not available	Not available

Overall Comparison

Cannondale SuperSix Evo: Frame weight as low as 770g, Complete bike: 6.8kg to over 8kg. Rad Power Bikes RadCity 5 Plus: Weight around 64-65 lbs (29.26 kg), Motor: 750W, Battery: 672 Wh, Range: 28-50 miles.

Pros and Cons

Cannondale SuperSix Evo

Pros:

Light weight (especially with Hi-MOD carbon)
Stiffness
Compliance
Excellent climber
Quick acceleration
Stable and agile handling
Superior stopping power with disc brakes
Threaded BSA bottom bracket for easier maintenance (on some models)
Comfortable riding position (especially with taller stack models)

Cons:

Rim brakes less effective in wet conditions
Internal cable routing can make maintenance more difficult (on some models)
Designed primarily for smooth pavement

Rad Power Bikes RadCity 5 Plus

Pros:

Hydraulic disc brakes offer smoother and more responsive braking
Puncture-resistant tires designed for efficient rolling on pavement
Step-through frame offers lower standover height for easier mounting and dismounting
Upright riding position for good visibility
Adjustable stem to suit various rider heights
750W motor provides ample power and performs well on hills
Redesigned wire routing and removable downtube cover improve serviceability
50mm travel suspension fork and 2.0-inch wide tires help smooth out bumps on various road surfaces
Stable and smooth ride

Cons:

Weight can impact climbing and acceleration
Some reviews suggest the shifters are basic and may not be the most durable
Some tests have shown average to relatively extended stopping distances
Some reviews mention the handling can be twitchy at higher speeds

User Experiences and Feedback

Cannondale SuperSix Evo

What Users Love

Light weight makes it an excellent climber
Lighter bikes accelerate more quickly
Disc brakes offer superior stopping power and modulation in all conditions
Refined, neutral racing geometry provides stable yet agile handling
Some models have a slightly taller stack for a more comfortable riding position
Carbon fiber frames provide a balance of light weight, stiffness, and compliance
Hi-MOD carbon offers even lower weight
Shimano 105 is considered durable and reliable
Ultegra and Dura-Ace offer higher performance and lighter weight
SRAM Force eTap AXS provides wireless electronic shifting
Vittoria Rubino Pro tires offer a good balance of rolling resistance and durability
Threaded BSA bottom bracket for easier maintenance

Common Complaints

Rim brakes can be less effective in wet conditions
Internal cable routing can make maintenance more difficult

Value Perception

Shimano 105 is considered durable and reliable
Vittoria Rubino Pro tires offer a good balance of rolling resistance and durability

Rad Power Bikes RadCity 5 Plus

What Users Love

No highlights reported.

Common Complaints

No major complaints reported.

Value Perception

No value feedback reported.