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Aipas S1 AMP electric bike
Aipas Bike LLC

Aipas S1 AMP

Mid-Drive Utility — 400 lb Limit, Undisclosed Componentry

$1,299 Proceed With Caution
View Official Page ↗

Full Specifications

Peak Power 4,000W
Motor Type mid-drive
Torque 255 Nm
Top Speed 50 mph
Battery 1,680 Wh · 60V · 28Ah
Range (claimed) 60 mi
Bike Weight 105 lbs
Load Capacity 350 lbs
Wheels 14" / 12"
Regen Braking No
Tunable Controller Locked
Brake Rotor 190 mm
Frame Steel
Warranty 1 year
US Dealers No

Pros & Cons

✓ Pros

  • Structural Capacity: 350 lbs ( lbs cushion)
  • 4kW mid-drive confirmed — correct motor architecture
  • 23.6" inverted front fork — longer travel than most competitors
  • 105 lbs — lightweight for a mid-drive pit bike
  • 190mm oversized disc brakes
  • ~$1,299 early bird

✗ Cons

  • Controller completely undisclosed — no brand, no amp rating
  • Aipas M1/M2 Pro audited: claimed 37A was actually 25A (33% inflation)
  • Same spec inflation risk applies to S1 AMP claims
  • No regen braking
  • 14"/12" pit bike wheels only
  • 14-day return window — very short

Video Review

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