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Sinch Force EZ 4

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Force EZ 4

Meet the Force EZ 4 — the SUV of e-bikes. Built for everyday adventures, school runs, hill repeats, and everything in between. With Bosch’s latest Performance Line Sport Smart System (90 Nm) assisting you up to 45 km/h, a massive 800 Wh PowerTube battery (expandable to 1050 Wh with PowerMore 250), and bright integrated lighting, it’s ready for whatever the day throws at you.

A market-leading step-through suspension frame, dropper seatpost, and premium air suspension front and rear bring true comfort and capability to the urban e-bike world. Smooth, safe, powerful, and incredibly intuitive — this is the bike that turns the everyday into the effortless.


DEPENDABLE PERFORMANCE

Battery

Powered by an internal Bosch PowerTube 800 Wh battery, with optional expansion to 1050 Wh using the PowerMore 250 (sold separately).

Powerful Pedal Assist

Bosch Performance Line Sport Smart System with 90 Nm torque. Assistance up to 45 km/h.

Data Centre

The Bosch Purion 200 offers a compact, connected colour display with clean, thumb-reach controls for key ride data.

Dependable Drivetrain

Shimano Cues 10-speed LinkGlide drivetrain for smooth, durable shifting designed to handle e-bike torque.


RELIABLE SAFETY

Lighting Solutions

Bright front and rear integrated lighting for all-conditions visibility.

Effective Brakes

Shimano hydraulic disc brakes for consistent, confident stopping power.

Safety Mirror

Integrated rear-view mirror for increased awareness and safer commuting.

Proper Traction

Reliable Maxxis tyres paired with plush suspension for secure grip and a controlled, comfortable ride.


UNPARALLELED COMFORT

Rear Suspension

Custom-tuned front and rear air suspension that smooths rough roads while maintaining excellent pedalling efficiency.

Equipped Features

Integrated lighting, alloy fenders, and a noise-reduction kickstand come standard.

All-Round Comfort

Every touch point — dropper post, saddle, bars, grips — designed with all-day comfort in mind.

Fingertip Control

The Bosch Purion 200 keeps your handlebar clean with a compact colour display and simple left-hand controls, fully connected via the Smart System.


CHARGING YOUR BIKE

Charging On-Bike

Charge via the satellite charging port without removing the battery.

Battery Cover

Independent cover keeps the frame sealed when the battery is removed.

Charging Off-Bike

The internal Bosch battery can be removed for off-bike charging.

Sinch Carry Case

A thoughtful storage case for your charger, battery key, and manuals.

FINDING YOUR FIT

Sinch Bikes run quite large. If you are in-between sizes we recommend sizing down.

Small / Medium

152-170cm

Medium / Large

168-182cm

Frame

6061 E-Bike specific step-through aluminium suspension frame with 100 mm rear travel, fully integrated removable downtube battery and internal cable routing

Front Suspension

SR Suntour XCM34 AIR, 110×15 mm Boost thru-axle, 120 mm travel, low-speed rebound adjustment and lockout

Rear Suspension

SR Suntour RS24-EDGEX-2CR-LV with rebound adjustment and lockout

Motor & Electronics

Drive Unit

Bosch Performance Line Sport BDU347Y, 250 W, 90 Nm, max power 700 W, max support 400%, assistance up to 45 km/h, walk assist mode

Battery

Bosch PowerTube 800 Wh

Display

Bosch Purion 200

Controller

Bosch Purion 200

Wheels

Hubs

Shimano TC500 Boost, 110×15 mm thru-axle 32H front / 148×12 mm thru-axle 32H rear

Rims

Alex EMC30 double-wall 27.5", 32H, Presta valve

Tyres

Maxxis Ikon 27.5×2.35", foldable, 60 TPI, TR/EXO puncture protection

Drivetrain

Shifter

Shimano CUES SL-U6000, 10-speed

Rear Derailleur

Shimano CUES RD-U6000 Shadow, 10-speed

Crankset

FSA alloy crankset with 42T chainring and chain device

Cassette

Shimano LG300 LinkGlide 11–48T, 10-speed

Chain

Shimano CN-LG500 LinkGlide

Pedals

Sinch nylon platform

Components

Brakeset

Shimano MT200 hydraulic disc brakes, 180 mm rotors front and rear

Saddle

Sinch Sport Comfort 175 mm dual-density gel saddle

Seatpost

Dropper post, 100 mm travel, internal routing, 31.6 mm

Handlebar

Sinch alloy comfort bar, 30 mm rise, 15° sweep, 720 mm width

Stem

Fastback 35, 31.8 mm clamp, 35-degree rise

Headset

Integrated headset with internal cable routing

Grips

Sinch Comfort Gel dual-density lock-on grips

Accessories

Lights

Litemove SE 90 Lux front light; integrated Spanninga Pimento Guard fender-mounted rear light with sensor-activated brake-light function

Included Equipment

Alloy fenders, noise-reduction kickstand, PowerMore 250 range-extender compatibility, multi-angle adjustable mirror, Sinch accessory case

Sizes

S/M, M/L (27.5")

Warranty

Lifetime warranty on hardtail frames, 5-year warranty on rear-suspension frames (Sinch), 2-year warranty on motor and battery. Other components follow manufacturer warranty.

Product specifications may change without notice.

Geometry S/M M/L
A - Seat Tube 430 480
B - Top Tube Horizontal 585 604.8
C - Chain Stay 488 488
D - Headtube Length 170 170
E - Head Angle 68° 68.5°
F - Seat Angle 75° 75°
G - Wheelbase 1191.7 1205.3
Standover 438.1 438.1
Stack 667.3 669.9
Reach 406.2 425.3
Crank Length 165 165
Stem Length 70 70
Force EZ 4 Geometry Diagram

How to Choose the Right Electric Bike

When you chat with us - whether in the shop or online - we’ll usually start by asking two simple questions:

Where do you want to ride? Do you tackle a big hill, cruise a long flat commute, or a bit of both?

Do you need to carry anything? Is it cargo, a kid, or a mix of everything?

Big hills usually mean more power and stronger brakes. Long commutes might call for a high-speed option with a larger battery. Carrying kids or heavier gear might mean looking at stability and the right accessories.

It can feel overwhelming with so many models out there, but that also means there’s a perfect match for your lifestyle. We’ll help you find it - and you can take a test ride to make sure it really fits into your day-to-day.

If you want to explore yourself on our website, go to our electric bike page and use the filters to narrow down your options based on how you answered the questions above.

Non-electric bikes are fine for flat, short trips with lighter loads, or more recreational endeavors. But if you’ve got hills, longer distances, or a wriggly kid or gear on board, an electric bike will change your life. The motor takes the sting out of climbs, makes heavy loads manageable, and opens up bigger commutes sans sweat.

Worried you'll get lazy? Honestly, it doesn't happen. If anything you'll find yourself riding your bike more knowing you have that electric support - think those occasions when you need to do a small grocery shop or pop into town for a dinner. Easier to grab the bike than the car. Plus you can still push it just as hard! You'll just get places faster.

Do I always need to fully charge my e-bike?

No! If you just need a top-up to cover your ride, charging to 50% is fine. A good rule of thumb for prolonging battery life is to avoid consistently running it flat. We suggest charging before it drops below 20%.

Modern e-bike batteries are managed by a Battery Management System (BMS), which protects the cells against overcharging, deep discharge, and overheating - so you can charge with confidence.

In most cases, the battery can also be removed from the bike and charged indoors, which is convenient in winter or if you don’t have power access where you park your bike.

Yes. Most electrics bikes - especially ones for commuting - come equipped with a rear rack. Pannier bags or child seats can easily be fitted in most cases.

When riding an e-bike there is no need to be tucked down low into the wind as the motor simply pushes you through it, but if you’re an experienced rider you may find that a sporty riding position is more familiar and comfortable. If you’re new or newly returning to cycling you might prefer an upright step-thru bike, generally new riders feel safer riding upright. Perhaps you’d like a mix of both in which case a mid-step frame will typically give you that semi upright riding position. The riding position on most bikes can be customised somewhat with adjustable handlebars and seat positions. We can help you with this in-store. Use the frame style filters in our shop pages to choose your desired riding position.