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Home X-Lab ST5+ Mercury Silver
X-LAB X-Lab ST5+ Mercury Silver
X-LAB X-Lab ST5+ Mercury Silver
X-LAB X-Lab ST5+ Mercury Silver
X-LAB X-Lab ST5+ Mercury Silver
X-LAB X-Lab ST5+ Mercury Silver

X-Lab ST5+ Mercury Silver

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X-LAB ST5+

The ST5+ brings X-LAB engineering to modern urban mobility.

Powered by an integrated electric system and built on a refined aluminum platform, the ST5+ delivers smooth acceleration, confident handling, and the comfort needed for everyday riding.

Designed for riders who want more from their city bike, the ST5+ makes commuting faster, cleaner, and far more enjoyable.

From daily travel to spontaneous detours, the ST5+ transforms the way you move through the city.

The Mission Command Center

A fully integrated cockpit with an accessible color dashboard puts speed, range, assist mode, and ride data right where you need it – simple to read, effortless to use, and built for everyday reliability and adjustments.

Built Tough, Ride Smooth

A durable alloy frame and a complete build around 54 lbs delivers stability and confidence that prepares the rider for commutes, errands, and long rides with real utility in mind.


Mid-Drive Power Engineered In-House

A mid-drive system tuned as a complete platform with torque where it counts, smarter control, and an integrated Branta ecosystem designed for a better ride feel and easier long-term performance.

All-Inclusive Security + Updates

ST5+ doesn’t stop at hardware: with Find My and the X-LAB Bikes app, you get security, ride customization, diagnostics, and over-the-air updates, so your bike stays current, protected, and ready for every day.

The Branta Advantage is Exclusive to X-LAB
 

Highlights ST5+

  • Key Features

    Class 2 throttle + Apple Find My anti-theft technology

    MIK rear rack + alloy fenders

    Shimano CUES 9-speed drivetrain

    Comfort setup: 2.4” tires + 80 mm suspension fork

     

Technical Specifications

FRAME

XDS X6 Alloy Frame, UDH Compatible

FORK

XDS Suspension Fork, Coil Spring, 80mm Travel,

110x15mm Thru-axle

HANDLEBAR / STEM

Branta Alloy Integrated, w/ Display & Front light, 680mm

Width, 90mm Length, 6 Degree Rise, 15 Degree Backsweep

SEATPOST

XDS 31.6mm Alloy Seatpost , 350mm Length

REAR DERAILLEUR

Shimano Cues RD-U4000, 9-Speed

SHIFTER

Shimano Cues 9-Speed

BRAKES

Branta EC4D Hydraulic E-Bike Brake, w/ Cutoff Switch,

3 Finger Lever, 4 Piston Caliper

CASSETTE

Shimano CS-LG300 11-46T, 9-Speed

CRANKSET

Branta Alloy Crankset, 46T, Narrow-wide Teeth

MOTOR

XDS Mid-drive X800 Motor, 250 Watt Continuous Rated

Power, 470 Watt Peak Power, 95Nm Peak Torque, Dual-sided Torque Sensor

BATTERY

XDS Rechargeable Li-ion Battery, 619Wh, LG Battery Cells, 3A Charger (0-100% 5hr)

LIGHTS

Integrated F+R Lights (+ Brake Lights)

SPEED

Pedal-assist and Throttle, Class 2 20mph (Unlock to Class 3 via the X-Lab Bikes Mobile App)

RANGE

Ride up to 75 miles on a Single Charge

TESTING AND COMPLIANCE

UL2271 and UL2849 Certified, Ingress Ratings: Complete Bike IP54, Battery IPX7, Motor and Other Electronics IPX6

LOAD CAPACITY

Max Load 330 lbs (150 kg)

CONNECTIVITY

Apple Find My Anti-Theft Technology, Bluetooth, OTA Updates

ROTORS

Branta PN28, F:180mm R:180mm

CHAIN

KMC E-GLIDE-S

WHEELSET

Branta Alloy E-Bike Wheelset

TIRES

CST CTC-06, 27.5’’x2.4, 30TPI, w/ Reflective Stripe

Max Tire Clearance: 2.4"

SADDLE

Branta C301

PHONE HOLDER

Quad Lock Mount

REAR RACK

MIK-HD Rack

WEIGHT

24.76 kg / 54.58 lbs (Size L)

SIZE OPTIONS

M / L

*Continuous Product Improvement

Innovation never stands still. As part of our commitment to building the best possible bicycles, X-LAB reserves the right to update specifications, components, colors, and other product details at any time without notice. We make every effort to keep our published specifications current, but minor variations may occur between production batches. Please contact your local X-LAB dealer or Customer Support if you would like to confirm the latest specifications before purchase.

product geometry anchor

 

 

Geometry & Dimensions

Basic geometry
title M L
A — Seat Tube Length 420mm 440mm
B — Top Tube Length 581mm 638mm
C — Head Tube Length 134mm 159mm
D — Seat Tube Angle 75° 74°
E — Head Tube Angle 69° 69°
F — Chainstay 475mm 475mm
G — Wheelbase 1152mm 1201mm
H — Bottom Bracket Drop 70mm 70mm
I — Stack 635mm 659mm
J — Reach 410mm 451mm
K — Front Center 686mm 735mm
O — Stand Over 734mm 744mm

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