Full suspension with smart features — or simple reliability with extra stopping power?
Key Differences: The D5 2.0 offers full suspension (100mm front + 130mm rear), switchable torque/cadence sensors, and premium Maxxis tires at $1,999. The Big Sur keeps things simpler with front suspension only, extra-large 203mm brake rotors, and a lower $1,599 price — but requires buying through a local dealer.
Specs Comparison
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| Specification | Himiway D5 2.0 | AIMA Big Sur |
|---|---|---|
| Price | $1,999 | $1,599 |
| Motor | 750W Hub 90Nm | 750W Bafang Hub |
| Battery | 720Wh Samsung/LG | 720Wh LG cells |
| Suspension | Full (100mm + 130mm) | Front only (80mm) |
| Range | 65 miles | 30-60 miles |
| Weight | 92 lb | 82 lb |
| Payload | 400 lb | 400 lb |
| Front Brake Rotor | 180mm | 203mm |
| Tires | Maxxis Minion 26x4.0" | Generic 26x4.0" |
| Sensor | Switchable Torque/Cadence | Torque only |
| Saddle | DDK 260mm Memory Foam | AIMA Comfort XL 280mm |
Quick Decision Guide
The Himiway D5 2.0 fits better if you:
- Ride long distances (25+ miles) and have joint or back concerns
- Want smart features like switchable torque/cadence sensing
- Prefer premium Maxxis tires with 3,000+ mile lifespan
- Want to order online and have it shipped to your door
The AIMA Big Sur fits better if you:
- Prefer the simplest, most reliable operation
- Want to test ride before buying at a local dealer
- Prioritize budget ($400 savings)
- Need extra stopping power (203mm rotors) for steep terrain
Ready to ride? Here's the D5 2.0:
Himiway D5 2.0 eBike
-
Full Suspension
Travel F:100mm R:130mm
-
Torque / Cadence
2 Riding Experiences
-
750W 90Nm
Geared Hub Motor
-
Smart Auto
5 Assist System
Suspension: Joint Protection for Long Rides
The D5 2.0 runs a complete dual-suspension system: 100mm travel RST GUIDE-26 in front and 130mm rear multi-link suspension. This setup absorbs impacts from rough terrain before they reach your joints and spine — particularly valuable for riders over 45 or anyone recovering from joint issues. On 25+ mile rides, full suspension reduces fatigue significantly compared to hardtails.
The Big Sur uses an 80mm front fork with lockout and preload adjustment. Simple, proven, and lighter — but rear impacts transfer directly through the frame. For smooth pavement or moderate gravel, this works fine. For rough trails or extended distances, the difference becomes noticeable.
Smart Features vs Simplicity
The D5 2.0 includes switchable torque and cadence sensors — toggle between exercise-focused torque mode (matches your effort precisely) and relaxed cadence mode (consistent power regardless of pedaling force). Add the 3.5" Bluetooth display with OTA updates, and you get a bike that adapts to different riding moods.
The Big Sur takes the opposite approach: one torque sensor, 5 PAS levels, thumb throttle — and that's it. No switching, no app, no complexity. Turn it on and ride. For those who want technology to stay invisible, this simplicity is a feature, not a limitation.
Brakes: Different Approaches to Stopping
The Big Sur's 203mm front and rear rotors are among the largest in the fat tire category. Larger rotors dissipate heat better during long descents and provide more stopping power when loaded with cargo. For steep terrain or riders who frequently descend hills, this is a genuine advantage.
The D5 2.0 uses 180mm rotors — still hydraulic, still effective, but with slightly less all-out stopping power. For typical riding conditions, the difference is minimal. In extreme braking scenarios or sustained downhill runs, larger rotors have an edge.
What's Included
Himiway D5 2.0 at $1,999:
- Full suspension (100mm front + 130mm rear) — joint protection for rough terrain
- Maxxis Minion FBF/FBR tires (EXO protection, 3,000-mile lifespan)
- Switchable torque/cadence sensor — adapt to workout or cruise mode
- DDK 260mm memory foam saddle
- 3.5" full-color Bluetooth display
- MIK rear rack (1,000+ accessories compatible)
- Integrated turn signal taillight
AIMA Big Sur at $1,599:
- 80mm front suspension (lockout + preload adjustable)
- 750W Bafang motor with torque sensor
- Extra-large 203mm brake rotors front and rear
- AIMA Comfort XL saddle (280mm x 270mm)
- 52T chainring for high-speed stability
- MIK HD compatible rear rack
- Professional dealer assembly included
- Lifetime frame warranty
"Feeling like gliding on a cloud. The suspension just soaks up everything. Perfect for my 30-mile weekend rides."
Frequently Asked Questions
Is the $400 price difference worth it for full suspension?
For riders over 45, those with joint issues, or anyone planning regular 20+ mile rides on rough terrain — yes. Full suspension reduces fatigue and stress on your body over long distances. For casual, short-distance riders on smooth paths, the savings may make more sense.
Which is better for seniors?
Both target comfort-focused riders. The D5 2.0's full suspension and smart features appeal to active seniors who ride longer distances and want technology to optimize their experience. The Big Sur's simpler operation and dealer support appeal to seniors who want straightforward riding and local professional service.
Do the larger brake rotors really matter?
In normal riding, the difference between 180mm and 203mm rotors is minimal. On steep descents, during heavy cargo loads, or in wet conditions, larger rotors provide better heat dissipation and more stopping power. If you frequently ride hilly terrain with cargo, Big Sur's rotors are an advantage.
Can I buy the Big Sur online?
No, AIMA only sells through authorized dealers. You must visit a local dealer for purchase. The D5 2.0 can be ordered online with direct home delivery, or test-ridden at Himiway's 1,000+ service shop partners.
Adventure Isn't Just for the Young
Full suspension, smart features, and premium tires — built for riders who want comfort without compromise.
Pay over time: 6 months 0% interest with PayPal Credit, or finance with Affirm/Klarna
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