Merida Etmo 500 Pro

The Merida Etmo 500 Pro is a full-suspension electric mountain bike aimed at riders who want proper off-road trail capability and enough battery to keep riding through a long, hilly day. It pairs an aluminium frame with mixed wheels, a Bosch motor built for sustained climbing, and trail-specific parts like a dropper post and four-piston brakes. Merida's own manual for this platform describes it as suitable for Category 4 off-road use, which places it firmly in trail-bike territory rather than gentle towpath riding.

Bosch power and a big, removable battery

The motor is a Bosch Performance Line CX, the brand's full-power trail unit, paired here with an 800Wh PowerTube battery and a Purion 200 display to keep track of charge and assistance level. An 800Wh battery is a large amount of stored energy by e-MTB standards, which matters more on long, hilly rides where you're leaning on the motor repeatedly rather than pedalling under your own steam for stretches. That said, battery capacity describes how much energy is on board, not a guaranteed number of miles; how far you get depends on the terrain, your chosen assistance mode and how hard you're working the motor. The battery is removable, so you can charge it off the bike if that's more convenient than finding a socket near where it's stored. If you regularly do longer days than the standard battery comfortably covers, Merida's manual for this platform supports fitting a Bosch PowerMore 250 range extender with the correct mount and cable, though that's an accessory to add rather than something included with this build.

Suspension, brakes and tyres for genuine trail riding

Up front there's an SR Suntour Zeron 36X air fork with 140mm of travel, working with an SR Suntour Edge X rear shock. That's a sensible amount of travel for varied trail riding and long climbs, though it's worth knowing that Merida also offers the Etmo 800 with more suspension travel for riders who want to prioritise aggressive descending over climbing efficiency and lighter overall handling. One detail worth flagging: the precise rear-shock travel figure for this UK build is disputed between different listings, so if the exact number matters to you, it's worth treating any specific rear-travel figure with a little caution rather than as settled fact.

Stopping power comes from SRAM DB4 Stealth four-piston hydraulic disc brakes with 200mm rotors at both ends, a setup that gives you plenty of margin on long, steep descents where you're relying on the brakes repeatedly rather than occasionally. Shimano's CUES U6000 provides simple, wide-range 1x10 shifting, which keeps things easy to understand and maintain without piling on extra gears you won't use. The tyre choice, a Maxxis Minion DHF up front and a Dissector out back, is a common trail pairing that puts more grip where steering and braking forces are highest. The wheels themselves sit on Merida's Comp TR II rims, which are tubeless-ready; the bike isn't set up tubeless from new, so moving to a tubeless setup is something to do later if you want it, not something already fitted.

Choosing a size

Merida offers this build across four overlapping sizes, from Short through to XLong, with the largest size covering riders from 185cm upwards without a stated upper limit. Because the height bands overlap rather than sitting in strict bands, two people of a similar height can reasonably end up on different sizes depending on whether they prefer a more compact, flickable feel or a longer, more stable one. The full geometry figures for each size, including reach and standover height, are worth comparing directly rather than relying on height alone.

Ownership, servicing and avoiding a mix-up with other Etmo models

Merida specifies a maximum system weight of 140kg for the Etmo platform, and it's worth being clear about what that means: it's a total figure covering the bike itself plus the rider and anything carried, not a 140kg allowance for the rider alone. Anyone planning to ride with a heavy pack or fit racks and panniers should factor that combined weight in before assuming there's more headroom than there actually is. Merida's manual also calls for an early specialist inspection after the first 100-300km, 5-10 riding hours or 4-6 weeks, whichever comes first, alongside ongoing suspension and drivetrain checks, so budgeting for that first service is a sensible part of ownership costs.

The stated UK RRP for this build is £4,400, though that figure hasn't been independently confirmed via an accessible manufacturer UK price page, so it's worth treating it as a reference point for comparing offers rather than the last word on price. It's also worth being careful with the name itself: Merida sells the Etmo 500, an EQ variant and the longer-travel Etmo 800 alongside this Etmo 500 Pro, and a fully specified 2027 version sold overseas isn't evidence of a newer UK specification for this bike. Matching the exact "Etmo 500 Pro" name and the 800Wh, Bosch CX build described here is the reliable way to compare like-for-like offers rather than assuming similarly named listings share the same equipment.