The new Merida eOne-Sixty is finally here, and the eOne-Forty too

Intended Use
More and less aggressive trail riding
Shimano EP8 (801) 85 Nm
630-750 Wh
Fork Travel
150 & 170 mm
Rear Travel
153-174 mm
starting at 22.2 kg (claimed)
Launched back in 2017, the original Merida eOne-Sixty was a revolution to me. New, compact motor designs allowed manufacturers such as Merida to design a frame with sensible chainstay length and bottom bracket drop. This did wonders for handling on the trails.

The new eOne-Sixty isn’t as revolutionizing. Still, Merida has done a lot of changes. I was sure the new eOne-Sixty would be launched in 2023, but it kept getting delayed. And when it was finally announced, Cannondale beat them by a week with a few significant similarities.

2024 Merida eOne-Sixty LITE 875
2024 Merida eOne-Sixty CF 10K

Just like the recently announced Cannondale Moterra SL, the eOne-Sixty has the Shimano EP8 (801) motor. It doesn’t end there, the Merida eOne-Sixty also has got flexstays and an internally fixed 600 Wh battery. Making both bikes light for a big battery, big motor emtb. But they’re also quite different. The Merida is a burlier bike with beefier components and longer travel. Check it out in this video or keep on reading.


Looking at the rear triangle, you might notice the pivot point near the rear axle is gone. The new flexstay design named “P-FLEX” allows the rear frame to flex as the suspension compresses. Merida says the new rear suspension design is tuned for more progression to work well with the new high-volume air-shocks and even coil-shocks. Suspension progression is higher for the bigger frames, ranging from 8 for the smallest frame to 16% for the biggest.

Carbon P-FLEX rear frame
Alloy P-FLEX rear frame

The first part of the travel has over 100% anti-squat, which should make for a stable and efficient pedaling experience. Around half-way into the travel, the anti-squat drops below 100% and becomes more active over bigger impacts. Anti-rise has been reduced compared to the previous model. The new eOne-Sixty rear suspension should be more active under braking while still ramping up towards the end of the travel.

The kinematics are the same for both the carbon and aluminium frames. And that seems plausible, the stays probably don’t need to flex much. I like the idea of flexstays, less moving parts and less maintenance is good. And it’s probably less weight too. I expect it will work well, Merida has been using flexstays on the latest non-assist One-Sixty that has been out for a while.

Leverage ratio for mullet vs 29
Merida eOne-Sixty anti squat
Merida eOne-Sixty anti rise

Merida eOne-Sixty sizing​

As with the unassisted One-Sixty, the frame size names have changed. Now they’re Short and Long, what Merida calls AGILOMETER sizing. The idea is you don’t choose the size based on how tall you are, you pick the frame length you prefer. This means the height difference between the frames isn’t big, as seen by the stack numbers. The XLong frame is just 20 mm taller than the XShort. The rear part of the frame is identical between the sizes. While the seat tube, head tube and reach increase on the bigger frames.

Merida fitted an adjustable dropper post to make it easier fitting a frame size to various rider heights. The Merida Team TR II dropper post can easily be adjusted between 30 and 230 mm, that’s a huge range.

Merida TEAM TR II dropper post
Slamming the seat on the Merida eOne-Sixty

eOne-Sixty geometry​

The new frame is longer, lower, slacker, as expected. You might know I prefer chainstays of about 445 mm, or slightly above. And I think 64.5* is a nice head angle for a down hill capable trailbike. It’s no wonder I was happy reading the geometry table showing 446 mm chainstays and 64.4* head angle. The frame in size Large, I mean Long, has a wheelbase of 1.266 mm. There are longer frames around, but this seems perfect for a capable descender that wants to work well on flatter trails too. The 78.4* seat angle is properly steep. 9 mm bottom bracket drop doesn’t seem a lot, but it isn’t tall considering the rear suspension travel has increased drastically.

Geometry is the same for the alloy and carbon Merida eOne-Sixty
Geometry changes over the previous model

A burlier mullet bike that can be converted to a 29er​

The eOne-Sixty has been a mullet bike with 155 mm rear travel for years. The 6 mm increase in chainstay length is a sign the new model will fit a 29er rear wheel. In the default, mullet setup the eOne-Sixty now has a whooping 174 mm of rear travel. There is a flip chip on the rocker that drops the rear travel to 160 mm and makes room for the 29 inch wheel. The fork travel has been increased too, up from 160 to 170 mm. It seems the new bike is a more capable descender while not giving up on its pedigree as a great allrounder.

The flip-chip. Notice the shock? It's rotated to fit the extender battery.
Merida eOne-Sixty 10K

Motor and batteries​

The motor is a powerful one that weighs about 2,6 kg. I think this is a good choice for a lighter full-power bike. It seems the updated Shimano EP8 (EP801) is quite durable too. Here’s more on the motor:

The new 600 Wh battery is fixed inside the frame. Unfortunate, or too little, some will say. But it’s not that surprising. The carbon eOne-Sixty always was the lighter weight, high-performance option. And internally fixing the battery saves weight. Labeling it 600 Wh is a bit confusing, but it seems it's because of some new EU legislation. The battery has the new 5,8 Ah (21700) cells making it 626 Wh. That’s about the same capacity as the old carbon model while being lighter, more than half a kilo is my guess.

The Shimano EP8, aka EP801 motor
Merida eOne-Sixty CF

People who want maximum range is likely to care less about weight and handling. That’s just how it has to be, you can’t have both. More range means more weight. Therefore, the 750 Wh detachable battery is only available on the Merida eOne-Sixty LITE. LITE is the name of the alloy frame, which isn’t that lite. There is another solution for increased range, the 360 Wh frame mounted range extender battery. Prices and weight unfortunately aren’t out yet, but it appears to be 2.3 kg.

The Merida eOne-Sixty lineup​

The eOne-Sixty CF and LITE make up two of the eMTBs in what Merida calls the eTRIOLOGY. Prices range between £5.200 and £10.500 (Suggested RRP EU: €6.250-12.600) and weight starts at 22.2 kg. Bikes will be available in stores from early March, the alloy version is the first to arrive. I notice models such as the eOne-Sixty 500/575 and 5000 are missing, perhaps those will come next year?

Merida eOne-Sixty CF 10K

£10.500 (RRP €12.600)
Merida eOne-Sixty CF 7000

£7.000 (RRP €8.400)
Merida eOne-Sixty CF 6000

£6.000 (RRP €7.200)
Merida eOne-Sixty CF 875

£6.000 (RRP €7.200)
Merida eOne-Sixty CF 675 grey

£5.500 (RRP €6.600)
Merida eOne-Sixty CF 675 green

£5.500 (RRP €6.600)

My take – Merida eOne Sixty CF & LITE​

EMTBs are getting better and better. How can manufacturers even come up with a new bike that will impress me anymore, like the original eOne-Sixty did? Well, bringing out a new bike with a lighter and simplified rear suspension is intriguing. And having sorted frame geometry helps a lot, although that’s subjective to some degree. Fitting a new and improved battery that brings a weight savings of about 20% should excite most of us, I assume. I think the new and lighter eOne-Sixties look very good. But I think Merida need a lower cost eOne-Sixty or two, I believe the price was part of the reason the original eOne-Sixty 800 was such a success. The new eOne-Forty could fill some of that gap though.

Merida eOne-Sixty LITE 875
Merida eOne-Sixty CF 10K

Have I forgotten about the new Merida eOne-Forty?​

Almost. This is the third and final model in the eTRIOLOGY and it appears there are fewer changes to the eOne-Forty. It has the old batteries and the old rear suspension design. No flexstay rear triangle. Has anything changed really?

Merida eOne-Forty LITE frame and geometry​

The eOne-Forty is only available in the LITE version with the alloy frame. The head angle remains unaltered at 66.5*, the rest of the geometry is hugely altered. Merida has abandoned the 439.5 mm chainstays. To me, that’s another sign that emtbs are abandoning short chainstays. With the 449 mm rear end, the eOne-Forty positions itself within the 445-450 mm range which seems to become the new normal.

Merida eOne-Forty LITE geometry
Comparing the Merida eOne-Forty geo to the old model

The wheelbase is up by a lot compared to the 2023 model, about 30 mm. This inevitably means the Reach has increased, up by about 20 mm. Another big change is the super steep seat angle of 79.5*.

Even though the frame looks similar to the old, it has changed significantly. Suspension travel has been altered too. It’s up from 140/133 to 150/143 mm. The old 27.5” rear wheel has been replaced with a bigger one, making it a pure 29er bike. But it can be converted back to a mullet setup using the flip-chip. This extends rear travel to 151 mm.

The Merida eOne-Forty 675 in red

Motor and battery​

The Shimano EP6 85 Nm motor is nowhere to be seen in the spec sheets, that’s a surprise! I thought that was the obvious choice of Shimano motors on a cheaper, less weight conscious model. But it is a pleasant surprise, the new EP8 (801) is a stronger and more inspiring ride.

The batteries remain the same with the choice between the 750 Wh battery or the old Shimano 630 Wh. And they’re still easily detachable. The eOne-Forty too gets the 360 Wh range extender. Combined with the 750 Wh battery, you get a whopping 1.110 Wh capacity.

All Merida eOne-Forty models get the Shimano EP8 (801) too.
Merida eOne-Forty 400

The eOne-Forty lineup​

Prices range between £4.300 and £6.000 (Suggested RRP EU: €5.150-6.350) and weight starts at 24.9 kg. Bikes will be available in stores from early March.

Merida eOne-Forty 675

£5.200 (RRP €6.250)
Merida eOne-Forty 675 EQ with fenders. It's actually not confidential!

£5.300 (RRP €6.350)
Merida eOne-Forty 475

£4.850 (RRP €5.800)
Merida eOne-Forty 475 EQ with fenders. It's actually not confidential!

£5.000 (RRP €6.000)
Merida eOne-Forty 400 grey

£4.300 (RRP €5.150)
Merida eOne-Forty 4010 sand

£4.300 (RRP €5.150)

My take – Merida eOne Forty LITE​

Okay, even though the Merida eOne-Forty LITE looks similar, it’s a very different bike! I think most people used to overlook the eOne-Forty and only considered the eOne-Sixty. That should change now. Both models have grown over their predecessors and the eOne-Forty with a longer frame and longer travel should be much more capable on the descents.

As previously mentioned, this new bike should be an interesting alternative for those who are missing cheaper options in the eOne-Sixty lineup. And for those who are missing detachable batteries and more range. If what you really miss is fenders and a rack, get the eOne-Forty EQ.
About author
Started mountainbiking in the 90s. Moved to emtbs in 2014 and have been reviewing them since 2016. Contact me here


Some fairly significant changes:
- Flexstays on 174mm, that's awesome! Having broken two shock bolts on the first gen and regularly bottom out on the second gen despite running very small amounts of sag I think having more rear travel and progression is a solid plan. Plus two less pivots to maintain (also the ones that usually get covered in crud).
- This bike is becoming quite a beast. I hope it maintains the playfulness that made the first two generations so fun with the longer chainstays. However, nice that you can get this bike in an XS which is quite rare from other manufacturers.
- The shock mount direction isn't great, as it puts the shock in bending during corners. Previous vertical shock was better, although trunnion isn't great and packaging probably makes this hard.
- Would like to see a Bosch in there. I think when people compare weight vs Shimano they forget that the Bosch is more fuel efficient so you could get away with a lighter battery: when all things are considered I don't think the Shimano is actually a lighter system.
- Would like to see a Bosch in there. I think when people compare weight vs Shimano they forget that the Bosch is more fuel efficient so you could get away with a lighter battery: when all things are considered I don't think the Shimano is actually a lighter system.
I completely agree, I much prefer the feel of the shimano motors the Bosch CX I’ve tried however the reliability, serviceability and efficiency are too much for me to ignore and therefore my next bike will likely be Bosch powered with is a pity as I like the look of these new e160s.
"A short clevis link connects the shock to the rocker link with a vertical-axis bushing to reduce side-loading on the shock." This is good, they already considered bending load on the shock.