AIMA Santa Monica vs Big Sur Sport 2.0: Two $2,099 Ebikes Compared

The AIMA Santa Monica and Big Sur Sport 2.0 both list at $2,099 at Tampa Bay eBikes as checked October 18, 2026. Prices are subject to change. The choice is between a 27.5-inch wheel format with an 8-speed drivetrain and a shorter 20-inch fat-tire bike with a larger battery and selectable pedal sensing.

Use this comparison to decide which differences matter to you, then confirm frame fit and the exact configuration before ordering.

What Both Bikes Include

Both bikes have a nonfolding 6061 aluminum step-through frame, a Bafang 750W rear-hub motor and a removable 48V battery using LG cells.

Both also include:

• Five levels of motor pedal assistance alongside an on-demand thumb throttle.
• Tektro hydraulic disc brakes equipped with large 203mm rotors for stopping leverage.
• Front suspension forks with mechanical lockout controls.
• Integrated front headlights, tail lamps, rear turn signals, and an electric horn.
• A maximum total gross payload rating of 400 pounds covering the rider and mounted cargo combined.

Key Differences

Direct side-by-side technical evaluation highlights the physical and electronic differences dividing these two electric bicycles. Reviewing published specifications reveals where each model allocates its build budget.

Santa Monica: Why Shortlist It

Shortlist the Santa Monica if you want its 27.5×2.6-inch tire format, 8-speed drivetrain and lower published weight. The SR Suntour fork has 75mm travel and lockout. Try the riding position and handling in person rather than assuming wheel size predicts comfort.

AIMA Santa Monica step-through electric cruiser shown in Matte Black finish.

The Shimano 8-speed drivetrain has an 11–34T cassette and a 52T chainring. Torque sensing responds to your pedaling effort. The shop lists Matte Black, Ivory White and Metallic Blue; confirm the available frame size and color before ordering.

Big Sur SPORT 2.0: Why Shortlist It

The Big Sur Sport 2.0 pairs 20×4-inch tires with a shorter overall length. It has a Zoom fork with lockout, with 80mm travel listed by the shop, and a Shimano 7-speed drivetrain with an 11–28T cassette and 52T chainring.

AIMA Big Sur SPORT 2.0 utility ebike shown in Sage Green finish.

Electronic equipment includes a Bafang C010 color display with integrated Apple Find My support. Location features require compatible hardware setup and do not replace physical locking security. Tampa Bay eBikes offers this build in Sage Green finish.

Battery, Range, and Sensor Differences

Battery capacity represents a significant technical contrast between both models at the $2,099 price point. The Santa Monica carries a 48V 15Ah battery producing a nominal 720 watt-hours by multiplying volts by amp-hours. The Big Sur SPORT 2.0 houses a larger 48V 20Ah pack providing 960 watt-hours of nominal energy.

A 33.3% increase in nominal watt-hours does not automatically provide 33.3% more range. Assistance, payload, wind, terrain and tire pressure affect travel distance. No controlled side-by-side range test is presented here.

Fit, Weight, Wheels, and Transport

Smaller wheel diameter does not automatically result in a lower frame or a lighter bicycle. The Big Sur SPORT 2.0 has an official standover height of 16.81 inches, whereas the larger-wheeled Santa Monica provides a lower standover height of 15.71 inches. Minimum saddle height measures 30.71 inches on the Regular Santa Monica and 31.18 inches on the single-size Big Sur SPORT 2.0.

Rear view of the AIMA Santa Monica highlighting frame clearance and cruiser proportions.

Manufacturer specifications list the Santa Monica at 62 pounds, while shop documentation lists approximately 64 pounds; shoppers should confirm equipped weight with installed accessories. The Big Sur SPORT 2.0 lists at 77.2 pounds from the manufacturer. Sizing labels also vary between sources: manufacturer charts list Regular (5'1"–6'2") and Large (5'5"–6'3") for the Santa Monica, while retail listings cite Small (4'9"–5'7") and Medium (5'7"+). Never treat these size names as identical; verify frame fit directly using the AIMA Santa Monica Buying Guide: Comfort, Components, and Fit.

Storage, Cargo, and Payload Checks

Neither bike folds. AIMA lists the Santa Monica at 75.98 inches long and the Big Sur Sport 2.0 at 69.69 inches long. Measure the complete storage space, doorway and turning clearance; the shorter length alone does not guarantee a fit.

Front three-quarter perspective of the AIMA Big Sur SPORT 2.0 emphasizing fork build and wide tire stance.

Both models publish a 400-pound maximum total payload capacity. This specification reflects the combined gross weight of the rider, riding gear, and mounted cargo across the entire frame structure. It does not represent individual rear rack capacity, nor does it grant permission to carry a second passenger, as detailed in the AIMA Big Sur Sport 2.0 Buying Guide: Fit, Battery, and Components.

Which Model Matches Specific Priorities

At the same listed price, the useful question is which set of differences solves your needs:

Detailed technical summaries remain available through the manufacturer overview for the AIMA Big Sur Sport 2 eBike.

How to Inspect Models in Showrooms

Evaluating physical reach, saddle heights, and weight balances in person helps determine correct bicycle sizing. Tampa Bay eBikes operates three dedicated retail showrooms across the region:

• 4004 S MacDill Ave Unit 6, Tampa FL 33611
• 376 Patricia Ave, Dunedin FL 34698
• 4116 S 8th Ave Unit B, St Petersburg FL 33711

Call ahead to confirm which location has the model, frame size and color you want to inspect. See our locations page for showroom details.

Frequently Asked Questions

Next Steps for Selecting an Ebike

Choose based on your preferred wheel format, battery needs, sensor response and physical fit. Compare the exact shop listings, ask about the frame size supplied and check storage and transport requirements before purchase.