Merida eBIG.TOUR 675

About the Merida eBIG.TOUR 675

The Merida eBIG.TOUR 675 sits squarely in that sweet spot where daily practicality meets genuine adventure capability. Built around a low step-through aluminium frame and powered by Shimano's EP6 motor paired with a substantial 750 Wh battery, it's the kind of e-bike that'll handle your weekday commute without fuss, then happily carry you and a weekend's kit along canal towpaths or forest fire roads come Saturday morning. Merida's PROLITE 66 alloy keeps weight sensible whilst the frame's internal routing and integrated mounts signal a bike designed to work hard in all weathers.

What sets this machine apart is the sheer completeness of the package. You're not bolting on aftermarket guards or hunting for compatible racks - the eBIG.TOUR 675 rolls out with full-length mudguards, a sturdy rear rack, integrated lighting front and rear, a frame lock and a kickstand. It's the sort of thoughtful specification that transforms a bike from a fair-weather toy into a genuine car replacement. The Shimano EP6 motor delivers 85 Nm of torque with a smooth, intuitive power curve that makes steep urban ramps and loaded touring climbs feel manageable rather than punishing. That 750 Wh battery isn't just a number - it translates into genuine freedom to plan longer routes without range anxiety gnawing at you.

The ride character leans towards comfort and confidence rather than outright speed. A 100 mm SR Suntour XCR34 air fork up front takes the sting out of potholes and kerb drops, whilst those 29×2.2" Kenda Booster tyres offer enough cushion and grip to venture off tarmac when the mood takes you. The upright geometry keeps your back happy over longer distances, and the low step-through design means you're not wrestling the bike at traffic lights or fumbling when you're laden with shopping. It's a bike that makes riding feel easy, which is precisely the point.

Merida eBIG.TOUR 675 geometry

Merida's chosen a relaxed, confidence-inspiring geometry that prioritises stability and comfort over razor-sharp handling. The upright riding position puts less strain on your wrists and lower back, making it easier to scan traffic or simply enjoy the view on a canal-side cruise. That low step-through frame isn't just about accessibility - it lowers your centre of gravity slightly and makes mounting and dismounting second nature, whether you're navigating a crowded bike rack or stopping mid-ride to check a map.

The 29-inch wheels and moderate wheelbase deliver a planted, sure-footed feel that inspires confidence on varied surfaces. You're not going to carve tight switchbacks with the urgency of a trail bike, but you will track smoothly through ruts, hold a line on loose gravel and feel composed when the road surface deteriorates. The head angle is calm enough to keep the front wheel tracking predictably, even when you've loaded the rear rack with panniers or a week's groceries. It's a geometry that rewards steady, purposeful riding rather than aggressive inputs - think of it as a bike that smooths out your commute rather than amplifying every twitch of the bars.

Reach and stack figures aren't published in a tidy chart, but the four sizes (S through XL) cover a broad rider height range from around 158 cm to 199 cm. If you're between sizes, consider how you'll use the bike: a smaller frame offers nimbler urban manoeuvring, whilst a larger one stretches you out slightly for more efficient touring posture. Either way, the upright cockpit and adjustable seatpost mean you'll find a comfortable position without contorting yourself.

Component choices & upgrades

The stock build on the eBIG.TOUR 675 is already well sorted for its intended role. Sram's NX Eagle 1×12 drivetrain offers a wide 10-50 tooth cassette range that'll see you up steep climbs without spinning out on the flat, and the Shimano FC-EN600 crankset is robust enough to handle the torque from that EP6 motor. Sram DB8 four-piston hydraulic brakes with 180 mm rotors front and rear deliver confident stopping power, even when you're carrying a load or descending in the wet. The Merida Comp CC II rims are sensibly wide at 25 mm internal, giving those 2.2" tyres a stable platform, and the Novatec hubs spin smoothly on Boost spacing (110×15 mm front, 148×12 mm rear) for added stiffness.

That said, if you're planning serious off-road excursions or year-round riding in particularly grim conditions, a few thoughtful upgrades can lift the bike's capability. Swapping the Kenda Booster tyres for something with a more aggressive tread - perhaps a Schwalbe Marathon or Continental Contact Plus - will improve grip on wet roots and muddy bridleways without sacrificing too much rolling efficiency on tarmac. If you're a heavier rider or regularly carry substantial loads, consider upgrading to a burlier rear tyre or even a slightly wider model within the frame's 2.35" clearance limit (without mudguards). The SR Suntour XCR34 fork is perfectly adequate for its role, but riders chasing more refined damping on rough trails might explore a service and tune or, further down the line, a fork upgrade - though that's overkill for most users.

The contact points are sensible rather than luxurious. The Merida Expert saddle and grips work well enough, but saddles are deeply personal - if you're planning long days in the saddle, investing in a model that suits your sit-bone width and riding style will pay dividends. The 720 mm handlebar offers decent control, though riders with broader shoulders might prefer a slightly wider bar for added leverage when loaded. The 90 mm stem is consistent across all sizes, which is a touch short for taller riders seeking a more stretched touring position, but it keeps the steering responsive in traffic. Ultimately, the stock build is thoughtfully chosen and ready to work hard; upgrades should be driven by your specific needs rather than any glaring weakness in the specification.

Where the Merida eBIG.TOUR 675 excels

This bike is outstanding at blending urban commuting with light touring and occasional off-road exploration. If your typical week involves navigating city traffic, carrying shopping or work kit, and perhaps escaping at the weekend for a canal towpath ride or a forest trail loop, the eBIG.TOUR 675 is in its element. The powerful motor and generous battery mean you arrive at work without breaking a sweat, even if your route includes a steep climb or a headwind. The integrated accessories - lights, guards, rack, lock - mean you're not cobbling together a functional setup from aftermarket parts, and the low step-through frame makes every stop and start feel effortless.

It also excels at longer, steadier rides where comfort and range matter more than outright speed. Load up the rear rack with camping gear or a weekend's supplies, and the bike remains stable and predictable. The suspension fork and high-volume tyres soak up rough tarmac, gravel tracks and bridleways without complaint, whilst the motor's smooth power delivery keeps your cadence steady on varied terrain. The 750 Wh battery is a genuine asset here - you can plan 60- or 70-mile days without obsessing over remaining charge, and the satellite charging port means you can top up the battery on the bike if needed.

Where it's less ideal is aggressive off-road riding or technical singletrack. The geometry is too relaxed and the weight too substantial for chucking the bike into tight corners or hopping over obstacles. You'll also find the 25 km/h assist limit more noticeable on fast, flowing descents or when you're trying to keep pace with unassisted road riders on the flat - though that's a legal constraint shared by every UK/EU e-bike, not a failing of this model. Similarly, if you're chasing the lightest possible setup for hauling the bike up flights of stairs or lifting it onto a car rack, the 25.6 kg weight (typical for a well-equipped e-bike with a large battery) will remind you this is a machine built for riding, not carrying.

Merida eBIG.TOUR 675 FAQs

What is the range of the Merida eBIG.TOUR 675?
Range depends on terrain, rider weight, assist level and weather, but the 750 Wh battery typically delivers 60 - 100 km in mixed use. Stick to Eco mode on flat routes and you'll stretch that further; lean on Boost mode for hilly commutes and you'll drain it faster. Real-world touring with moderate assist and a loaded rack tends to land around 70 - 80 km, which is ample for most day rides.

Is the Merida eBIG.TOUR 675 suitable for off-road use?
It handles light off-road terrain - canal towpaths, forest fire roads, smooth gravel tracks - with confidence, thanks to the 100 mm suspension fork and 2.2" tyres. It's not designed for technical singletrack or aggressive trail riding, where the relaxed geometry and weight would feel cumbersome. Think of it as a bike that'll happily venture off tarmac rather than one that lives for gnarly descents.

What is the weight of the Merida eBIG.TOUR 675?
The complete bike weighs approximately 25.6 kg, which is typical for a well-equipped e-trekking bike with a 750 Wh battery and integrated accessories. That weight brings stability and durability, though it's worth considering if you need to lift the bike regularly or navigate tight storage spaces.

What type of motor does the Merida eBIG.TOUR 675 use?
It's powered by Shimano's EP6 motor, which delivers 85 Nm of torque with a smooth, natural-feeling power curve. The motor is quiet, efficient and well-suited to both urban stop-start riding and sustained touring efforts. It's a proven unit that balances performance with reliability.

How does the Merida eBIG.TOUR 675 compare to the 400 EQ model?
The 675 sits higher in the range with a more capable drivetrain (Sram NX Eagle 1×12 versus a simpler setup on the 400), potentially a larger battery and better component specification overall. If you're planning longer rides, steeper climbs or more varied terrain, the 675's wider gear range and enhanced spec justify the step up.

Can I fit wider tyres to the Merida eBIG.TOUR 675?
The frame clears up to 29×2.35" without mudguards, or 29×2.25" with guards fitted. You've got a little room to experiment with tread patterns or slightly wider rubber for improved grip off-road, but you're not going to squeeze in full-on mountain bike tyres. The stock 2.2" Kendas are a sensible middle ground.

What accessories come standard with the Merida eBIG.TOUR 675?
It arrives with full-length mudguards, a rear rack, integrated front and rear lights, a frame lock and a kickstand - essentially everything you need for practical, all-weather riding straight out of the box. That's a significant value-add compared to bikes that leave you hunting for compatible aftermarket parts.

How do I find the right size for the Merida eBIG.TOUR 675?
Merida offers four sizes (S, M, L, XL) covering rider heights from roughly 158 cm to 199 cm. If you're between sizes, consider your riding style: a smaller frame is nimbler in traffic, whilst a larger one offers a more stretched-out touring position. The low step-through design and adjustable seatpost give you flexibility to dial in a comfortable fit.