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Description
Batch Bicycles eCB.3 27.5
The all-new Batch eCB.3 is made for riders who want comfort, ease, and a little extra zip in their everyday routine. Outfitted with a powerful 500W Class 3 Vinka rear hub motor, this electric comfort bike provides pedal-assist support up to 28 MPH or 20 MPH with the throttle, helping you cruise longer, climb easier, and ride with confidence — whether you're commuting, running errands, or exploring on the weekend.
Built around a step-thru alloy frame, the eCB.3 offers easy on-and-off access with a relaxed, upright riding position. The Zoom hydraulic suspension fork smooths out cracks and bumps in the road, while wide 2.4” tires add stability and traction. With a Shimano 8-speed drivetrain, Tektro hydraulic disc brakes, and anatomical comfort features, it’s everything you want in an e-bike — approachable, enjoyable, and ready to roll.
Key Features:
- Vinka E-Power System – 500W Vinka RH30 rear hub motor delivers efficient pedal-assist performance up to 28mph.
- Hydraulic Suspension Fork – Zoom 862S fork with 80mm travel smooths out bumpy streets and gravel paths.
- Comfort-First Geometry – Step-thru alloy frame offers easy mounting and a relaxed upright fit for casual cruising.
- Smooth 8-Speed Drivetrain – Shimano Altus shifting provides reliable gearing across flats, hills, and everything in between.
- All-Weather Braking – Tektro HD-M275 hydraulic disc brakes deliver confident, consistent stopping power.
Specifications:
| Component | Details |
|---|---|
| Frame | 6061 Hydroformed aluminum Step Thru design w/replaceable Der. hanger |
| Fork | 27.5" Zoom 862S AMS Hydraulic Suspension fork |
| Motor | Vinka 500W Class 3 |
| Battery | 15Ah 720wh |
| Display | KDS KD-716 |
| Headset | Threadless Sealed Bearing |
| Brakes | Tektro HD-E3520 Hydraulic Disc |
| Brake Rotors | Tektro 180mm |
| Brake Levers | Tektro HD-E3520 Hydraulic Disc |
| Shifters | Shimano ASLM3158RC 8sp |
| Rear Derailleur | Shimano Altus 8sp |
| Cassette | Shimano 8sp Cassette 11-32 |
| Chain | KMC Z8.3 |
| Bottom Bracket | Torque Sensor |
| Crankset | Samox Alloy 170mm |
| Chainring | 48T |
| Tires | Kenda Kwick Seven-5 27.5"x2.4 |
| Rims | Aluminum Double Wall, 36H |
| Hubs | 36H 15X100 Thru Axle front |
| Handlebar | Batch Alloy 660mm |
| Grips | Dual Density Rubber |
| Stem | 0-60 degree adjustable |
| Seat | Cionlli |
| Seat Post | 30.9 Aluminum Suspension |
Sizing & Geometry:

Batch Bicycles
Batch Bicycles eCB.3 27.5 - Slate Bronze
Batch Bicycles eCB.3 27.5 - Slate Bronze
Item ID: GM021326-05
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