Twitter Electric
⏱ Made to Order: 10-25 Business daysEM19 - Cyctrac Electric Mountain Bikes
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Twitter EM19 Cyctrac
Built to climb harder and ride farther, the Twitter EM19 Cyctrac is a full-suspension carbon e-MTB driven by a Bafang M820 mid-drive motor with 85 Nm of torque and a fully integrated 720Wh Samsung battery for up to 130–150 km of pedal-assist range. Its high-modulus carbon AM frame pairs 145mm of DNM air-shock rear travel with a 150–160mm air fork, while a 12-speed drivetrain, four-piston hydraulic disc brakes on 203mm rotors and 29/27.5 MAXXIS trail tires keep every descent fast and controlled.
Key Features
- ▪ Bafang M820 Mid-Drive Motor — 36V/250W (48V/250W) with 85 Nm torque, torque & cadence sensing and IP X6 weatherproofing.
- ▪ Integrated 720Wh Samsung 21700 Battery — removable down-tube pack delivering up to 130–150 km of pedal-assist range, 5–7h full charge.
- ▪ High-Modulus Carbon AM Frame (Thru-Axle 12×148 Boost, UDH) with 145mm rear travel and a DNM air shock (200×55).
- ▪ Air-Sprung Front Suspension — RS or ROCKSHOX-35S air fork with 150–160mm travel and a remote dropper seatpost (100/125mm).
- ▪ 12-Speed Drivetrain — choose SHIMANO DEORE M6100 or WheelTop EDS OX wireless, on an 11–50T cassette for steep climbs.
- ▪ TEKTRO M535 Four-Piston Hydraulic Disc Brakes (203/203mm) with 29/27.5×2.4" MAXXIS trail tires and a top-tube LCD display.
Engineering & Design Highlights
Mid-Drive Motor
A Bafang M820 mid-drive motor sits low and central in the carbon frame, delivering 85 Nm of torque through a 34T chainring matched to the motor. Torque- and cadence-based sensing reads every pedal stroke for natural, responsive assistance — and an IP X6 rating keeps it sealed against trail spray.
Trail Suspension
A DNM air rear shock (200×55) drives 145mm of rear-wheel travel through the carbon AM linkage, tuned to smooth out roots and rock gardens. Up front, an air-sprung fork with 150–160mm of travel keeps the front wheel tracking for confident, controlled descents.
12-Speed Drivetrain
A wide-range 12-speed drivetrain pairs an 11–50T cassette with a motor-matched 34T crankset for easy gearing on the steepest climbs. Available as a SHIMANO DEORE M6100 mechanical group or a WheelTop EDS OX wireless setup — both built for clean, reliable shifts under power.
Drivetrain Configurations
SHIMANO DEORE M6100 — 12-Speed (RS Air Fork)
SHIMANO DEORE M6100 1×12 mechanical drivetrain with an 11–50T SUNSHINE cassette and SUMC chain, matched to a 34T motor crankset. Fitted with an RS MgAl-alloy air fork (150mm, manual, thru-axle 15×110) for a value-focused trail build.
SHIMANO DEORE M6100 — 12-Speed (ROCKSHOX Fork)
The same SHIMANO DEORE M6100 1×12 group with an 11–50T SUNSHINE cassette and SUMC chain, upgraded with a ROCKSHOX-35S air fork (160mm, manual, thru-axle 15×110) for added travel and front-end control on technical terrain.
WheelTop EDS OX — 12-Speed Wireless (ROCKSHOX Fork)
WheelTop EDS OX wireless electronic 1×12 drivetrain with an 11–50T cassette and motor-matched 34T crankset for cable-free, instant shifting. Paired with the ROCKSHOX-35S air fork (160mm, manual, thru-axle 15×110) as the top-tier configuration.
Specifications
| Frame | CYCTRAC EM19, AM, High-Modulus Carbon Fiber, internal cable routing, Thru-Axle 12×148 Boost, UDH, 145mm rear travel, DNM air rear shock (200×55) |
| Motor | Bafang Mid-Drive M820, 36V/250W (48V/250W) |
| Max Torque | 85 Nm |
| Battery | Samsung 21700 Li-ion, 720Wh, 36V/20A (48V/15A), integrated down-tube pack |
| Range (Pedal Assist) | Up to 130–150 KM |
| Charger & Charge Time | 3A DC2.1 charger, 5–7 hours for a full charge |
| Display / HMI | Bafang C030 LCD digital, built into top tube, with Bluetooth / BafangGo App; torque + cadence pedal sensor; IP X6 weatherproof |
| Speed | 25 km/h default (max 45 km/h) |
| Fork |
LOW: RS MgAl Alloy Air, manual, 150mm, Thru-Axle 15×110 HIGH: ROCKSHOX-35S Air, manual, 160mm, Thru-Axle 15×110 |
| Drivetrain |
M6100: SHIMANO DEORE M6100, 1×12-speed, SUNSHINE 11–50T cassette, SUMC chain Wireless: WheelTop EDS OX, 1×12-speed wireless, 11–50T cassette |
| Crankset | Matched to mid motor, 34T |
| Brakes | TEKTRO-M535, 4-piston hydraulic disc, 203/203mm (standard on all variants) |
| Wheelset |
Hubs: RS Aluminum Alloy, 4 sealed bearings, HG, Disc, 32H, Thru-Axle F15×110 / R12×148 Boost Rims: RS Aluminum Alloy, double-wall with rivets, W30×H21mm; SHUNJIU 14G spokes |
| Tires | MAXXIS, 29/27.5×2.4" |
| Cockpit | RS Aluminum Alloy, matte; Handlebar 31.8×720mm, Stem 45mm, Clamps 34.9mm; PU leather grips with locking ring |
| Seat Post | RS height-adjustable dropper with remote, 31.6mm, 100/125mm travel; RS thickened MTB saddle |
| Frame Sizes | 29 (27.5) × 16" / 18" |
| Colors | Black · Dark Gray · Dark Green · Dark Red |
| Max Load | 140 KG |
| Net Weight | 21.3 – 22.1 KG (depending on configuration) |
What's in the Box
- Factory pre-assembled Twitter EM19 Cyctrac electric mountain bike
- Samsung 720Wh integrated battery + 3A DC2.1 charger
- RS aluminum-alloy MTB pedals + adjustment tools
- Official manual + Warranty card
We reserve the right to make changes to product information at any time without prior notice, including specifications, models, colors, and materials.
Cyctrac EM19 Features
Why choose this bike
Carbon Trail Chassis
High-modulus carbon construction with 140mm travel built for aggressive all-mountain riding.
High-modulus carbon construction with 140mm travel built for aggressive all-mountain riding.
150mm Air Fork
Select between RS air suspension or ROCKSHOX RECON for improved trail sensitivity.
Select between RS air suspension or ROCKSHOX RECON for improved trail sensitivity.
Wireless or Mechanical
Choose Shimano M6100 for proven reliability or Wheeltop wireless for modern, cable-free shifting.
Choose Shimano M6100 for proven reliability or Wheeltop wireless for modern, cable-free shifting.
4-Piston Brakes
TEKTRO M535 hydraulic brakes deliver powerful, consistent stopping performance.
TEKTRO M535 hydraulic brakes deliver powerful, consistent stopping performance.
Boost Wheelset
RS hubs and double-wall rims provide durability and stability with MAXXIS 2.25" tires.
RS hubs and double-wall rims provide durability and stability with MAXXIS 2.25" tires.
Color Options
Available in Black, Dark Gray, Dark Green, and Dark Red.
Available in Black, Dark Gray, Dark Green, and Dark Red.
Carbon Frame & Travel
Drivetrain Options
Learn how the 140mm carbon rear end and 12-speed drivetrain enhance control, climbing efficiency, and responsiveness on rough terrain.
EM19 Overview
M820 Drive System
See how the lightweight M820 motor delivers smooth power and natural torque support for technical trail riding.
