Rotwild have always been recognised as pioneers in the eMTB sector and with the new R.X375 and R.E375 models, the German brand is proving that it’s still at the top of its game. While many brands have integrated the new Shimano EP8 into their existing bikes, the Dieburg team have come up with an entirely new concept and it looks very promising!

Before we get into the review, we would like to tell you about our latest print edition. The E-MOUNTAINBIKE Print Edition 2020 is our third annual edition and ultimate test bible, with which we aim to help you choose the perfect eMTB. More than 250 pages of extensive buyers advice, tons of eMTB know-how as well as reviews of the 35 most exciting eMTBs and the 7 best motors. You’ll also find many helpful tips and a guide to the most exciting eMTB trends – all of this is wrapped in a high quality print format. Click here for more information or order it directly in our shop!

The new Rotwild R.X375 Ultra is the flagship in Rotwild’s new eMTB fleet. Hitting the scales at 18.2 kg, the bike is incredibly light and, with a price tag of € 11,499, also very expensive

The concept of the Rotwild R.X375 and R.E375 in detail

The new Rotwild R.X375 and R.E375 were both clearly designed to deliver fun on the trail. Both bikes are aimed at riders who want a light, agile eMTB and are willing to accept compromises in terms of battery capacity. But don’t worry, the engineers at Rotwild have come up with a lot of good ideas to prevent you from getting stuck mid-ride with a dead battery. On the one hand, the new Shimano EP8 motor allows you to preconfigure two motor profiles and tune Eco, Trail and Boost modes in each. You could create a more economical profile, which provides a natural ride feel and uses little battery power as well as a more powerful one for technical sections, which you can switch between on the fly. If you want to find out more about the EP8 motor, you can read our detailed and comprehensive review with our first ride impressions, suggested settings and much more. Another highlight is the quick-change battery system, which allows you to remove the battery from the frame within seconds. If you can afford an extra € 749, you can buy a second external battery with a lightweight carbon housing to double your range. Rotwild will also be releasing a new version of their popular Rotwild R.X750, which we tested extensively last year. However, the updated 2021 model has remained pretty much unchanged.

In addition to the R.X375 with 150 mm travel, Rotwild have introduced a long-travel enduro version with a whopping 170 mm travel – the R.E375. This relies on the same motor concept but has a different frame.
With its slim silhouette and distinctive frame shape, the Rotwild R.X375 is a real eye-catcher
Less is more: Rotwild used the new lightweight Shimano EP8 motor to develop an entirely new eMTB bike concept. Find a comprehensive review of the new Shimano motor here.
At the heart of the bike, the motor is powered by a 375 Wh battery that can be removed within seconds
Just press the golden button and the battery will pop out of the frame…
Then slide it out sideways and remove it quickly and easily.
The battery itself is surprisingly compact and light. However, at € 749, purchasing a spare is no bargain.
There’s even a charge indicator on the battery itself. This allows you to check it when charging the battery off the bike.

Both the Rotwild R.X375 and the R.E375 feature a full carbon frame, each its own specific platform. Both bikes roll on 29″ wheels and have 150 mm and 170 mm travel respectively, front and rear. Besides the practical battery removal system, the frames are packed with many clever and beautiful details. For example, a magnet on the cap of the charging socket allows you to secure it to the frame. A massive chainstay protector ensures a quiet ride and Rotwild’s in-house stem and handlebars make for a tidy cockpit – a nice touch!

The Rotwild R.X375 has a full carbon frame
Even the linkage is made of carbon
The cables are internally routed and enter the frame just behind the distinctive head tube
The stem was developed in-house by Rotwild and plays its part in the successful integration and clean look of the cockpit
Handlebars with internally routed motor cables are pretty much standard on high-end eMTBs – Rotwild is no exception.
Shimano provide the remote…
… as well as the new colour display, which is safely tucked away behind the handlebars.
The massive chainstay protector is meant to prevent the chain from slapping on the chainstays and should make for a quiet ride.

The spec of the Rotwild R.X375 and Rotwild R.E375 in detail

While the two bikes were designed for different purposes, they have some things in common. Both share the same Shimano drivetrain and brakes, except for the entry-level CORE model which comes equipped with Magura MT5 brakes. It’s worth mentioning that there isn’t a single SRAM component on this bike. The whole range rolls on DT Swiss wheels, where high-end models feature top of the range carbon wheelsets and more affordable spec options come with cheaper wheels. However, experience has shown that DT Swiss wheelsets are always reliable and durable. As far as the tires go, Rotwild are saying goodbye to Continental and starting a new partnership with Schwalbe. The R.E375 comes with a Magic Mary/Big Betty combo with Super Trail casing and the R.X375 with Nobby Nics with the ultra-light Super Ground casing. Riders with trail ambitions should upgrade to more robust tires to improve puncture resistance and sidewall stiffness. A real highlight is the EightPins dropper, which can be found on all models except the most affordable CORE version. Depending on the frame size, the dropper has up to 230 mm travel. The ULTRA model features the new hydraulic version of the EightPins dropper, which is a lot smoother than the mechanical version.

Both the R.X375 and the R.E375 feature FOX suspension with a 36 fork. The R.X375 comes with a DPX2 and the R.E375 with an X2 shock as standard.
Four-piston Shimano XTR brakes provide reliable and powerful deceleration
Unfortunately, the Rotwild R.X375 has a 180 mm rotor at the rear. For eMTBs, 203 mm rotors front and rear make more sense.
While Schwalbe’s lightweight Super Ground casing might help to save weight, it’s simply too weak for ambitious trail riding
Highlight: the Eightpins dropper post perfectly harmonises with the overall concept of the bike and offers up to 230 mm travel, depending on the frame size

All the specs of the R.X375 at a glance

The two R.E375 specs at a glance

The geometry of the Rotwild R.X375 and R.E375

With Rotwild designing a specific frame for each bike, it made sense to adapt the geometry of each to its respective area of application. Rotwild offer the R.X375 in four sizes. The large frame has a reach of 470 mm, a relatively conservative 66.5° head angle and a low bottom bracket (30 mm drop). At 75.5°, the seat angle should provide a comfortable riding position for long days in the saddle. Together with the 450 mm chainstays, all of these numbers suggest lively yet good-natured handling.

The geometry of the Rotwild R.X375 at a glance:

Size S M L XL
Seat tube 410 mm 440 mm 470 mm 506 mm
Top tube 590 mm 610 mm 640 mm 667 mm
Head tube 110 mm 110 mm 130 mm 140 mm
Head angle 66.5° 66.5° 66.5° 66.5°
Seat angle 75.5° 75.5° 75.5° 75.5°
Chainstay 450 mm 450 mm 450 mm 450 mm
BB Height 345 mm 345 mm 345 mm 345 mm
Wheelbase 1184 mm 1205 mm 1237 mm 1266 mm
Reach 430 mm 450 mm 475 mm 500 mm
Stack 618 mm 620 mm 636 mm 645 mm

You can immediately tell that the geometry of the R.E375 is more progressive than the R.X375. In a size Large, the bike has a reach of 485 mm and a slack 63.5° head angle. Since the enduro version has more travel and thus more SAG, at 77 °, the seat angle is significantly steeper than the R.X375. With a 25 mm drop, the bottom bracket is also higher. At 445 mm, the chainstays are slightly shorter and should make for very lively handling. Unlike the R.X375, the enduro version is only available in three sizes, from M to XL.

The geometry of the Rotwild R.E375 at a glance:

Size M L XL
Seat tube 440 mm 470 mm 506 mm
Top tube 604mm 632 mm 655 mm
Head tube 110 mm 125 mm 130 mm
Head angle 63.5° 63.5° 63.5°
Seat angle 77° 77° 77°
Chainstay 445 mm 445 mm 445 mm
BB Height 350 mm 350 mm 350 mm
Wheelbase 1253 mm 1284 mm 1311 mm
Reach 460 mm 485 mm 510 mm
Stack 625 mm 636 mm 641 mm

Who are the two Rotwild models for?

When looking at the two bikes, you’ll inevitably ask the question: which one is right for me?

Rotwild call the enduro version “The daredevil” and describe it with the following statement:

“Speed and action are imperative. Cornering speed, perfect lines and long jumps are part of the game. Always on the hunt for new challenges or a new personal best. Be impulsive and brave to stay ahead of the competition. Whether you’re riding on natural or man-made trails, racing your mates and having fun is always the priority.”

The R.X375 is dubbed “The trail king” and described as follows:

“Always looking for a new experience, searching for technical and demanding trails. That’s what motivates us to go out and explore. Fast singletracks, tight switchbacks, rough rock gardens and treacherous root carpets are a godsend, the key to happiness. Our ambition drives us to perform better and keeps us excited. And at the end, you’ll stand there, proud like a king of what you’ve achieved.”

Pricing and availability of the new Rotwild R.X375 and R.E375

Depending on the model and spec, prices range from € 6,999 to € 11,499 for the R.X375 and from € 7,499 to € 8,999 for the R.E375. If you want to double your range, you can buy an optional 375 Wh IPU battery with carbon housing for an extra € 749.

The prices of the bikes range between € 6,999 and € 11,499 and the additional battery costs € 749.

While the official release is planned for the end of the year, Shimano are currently experiencing some problems fulfilling the supply of their new motor. This currently makes it impossible to give an exact date for availability.

The new Rotwild R.X375 and R.E375 conclusion

Once again, Rotwild live up to their reputation as a driver of innovation in the eMTB sector, presenting bikes that push forward the eMTB concept and that make use of the new Shimano EP8 motor. The coherent integration and clever battery removal system could give the Specialized Levo SL some competition. However, the bikes will have to prove their potential in a more detailed test and we can’t wait to review them for you.

More information at rotwild.de


It's finally here: The E-MOUNTAINBIKE Print Edition 2020 is our third annual edition and ultimate test bible, with which we aim to help you choose the perfect eMTB. More than 250 pages of extensive buyers advice, tons of eMTB know-how as well as reviews of the 35 most exciting eMTBs and the 7 best motors. You’ll also find many helpful tips and a guide to the most exciting eMTB trends – all of this is wrapped in a high quality print format. Click here for more information or order it directly in our shop!

Words & Photos: Christoph Bayer

About the author

Christoph Bayer

When work doesn't feel like work, then you've probably done everything right. Luckily, that’s exactly what Christoph did. He loves biking and the tech talk surrounding it (to the detriment of his girlfriend Toni), photography and travelling the world. He has been with ENDURO almost from the start and as editor-in-chief, he's responsible for making ENDURO the most progressive and exciting magazine in the industry. Of course, he still writes a lot of content himself, reviews almost 100 bikes a year and rides his bike almost every day. The alpine trails around his hometown serve as the perfect testing grounds. He doesn't have a classic 9 to 5 routine – sometimes he's in the office, sometimes he'll take his laptop to sit in the garden and sometimes you'll even find him working remotely from his van parked at one the best riding spots in the world. For Christoph, work-life boundaries are fluid and he likes it that way.