Minimal-assist bikesThe perfect enduro bikes?

Adrian Kaether

 · 20.06.2021

Minimal-assist bikes: the perfect enduro bikes?Photo: Wolfgang Watzke
Minimal-assist bikes: the perfect enduro bikes?

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Fast uphill and yet playful downhill. Minimal-assist bikes have what it takes to be the perfect enduro bike. Will Specialized and Rotwild do the maths?

Are minimal-assist bikes the perfect enduro bikes? EMTB tester Christian Schleker would immediately agree. He tested the two lightweight enduro bikes Specialised Kenevo SL Expert (9499 Euro) and Rotwild R.E375 Pro (8999 Euro) in issue EMTB 3/2021 against each other.

In terms of handling, both bikes come incredibly close to an enduro bike without a motor and can even turn the disadvantage on the scales downhill into an advantage in terms of smoothness. And thanks to the motor, you can at least go uphill with a slight tailwind. Compared to the motorless Enduro, this means more descents in the same amount of time.

  The <a href="https://luna.r.lafamo.com/ts/i5533923/tsc?amc=con.blbn.497955.507800.14129791&smc=BIKE&rmd=3&trg=https%3A%2F%2Fwww.fahrrad-xxl.de%2Fspecialized-kenevo-sl-expert-p00062886m001" target="_blank" rel="noopener noreferrer nofollow">Specialized Kenevo SL Expert</a> * is a true minimal-assist bike with enormous downhill potential. SL 1.1 is the name of the motor, which is built exclusively for Specialized by Mahle. Its 240 watts and 35 Nm of torque do exactly what they are supposed to do.Photo: Wolfgang Watzke The Specialized Kenevo SL Expert * is a true minimal-assist bike with enormous downhill potential. SL 1.1 is the name of the motor, which is built exclusively for Specialized by Mahle. Its 240 watts and 35 Nm of torque do exactly what they are supposed to do.  The <a href="https://luna.r.lafamo.com/ts/i5034112/tsc?amc=con.blbn.497955.507800.14447882&smc=BIKE&rmd=3&trg=https%3A%2F%2Fwww.fitstore24.com%2Fde%2Frotwild-r-e375-fs-pro-volcano-grey-20213" target="_blank" rel="noopener noreferrer nofollow">Rotwild R.E375 Pro</a> * is supported by the powerful Shimano EP8, although its power is throttled ex works so that the battery lasts particularly long. However, its 500 watts and 85 Nm of torque can be unlocked via an app.Photo: Wolfgang Watzke The Rotwild R.E375 Pro * is supported by the powerful Shimano EP8, although its power is throttled ex works so that the battery lasts particularly long. However, its 500 watts and 85 Nm of torque can be unlocked via an app.

But wouldn't a classic E-Enduro offer even more of everything? More speed uphill, an even richer riding experience downhill? Perhaps. But for most enduro riders, with or without an E, handling is at the top of the priority list - ahead of engine performance, smoothness and reach. And in the handling category, minimal-assist bikes are hard to beat.

  I'm already here! Minimal-assist bikes are designed to enable more descents per time. The concept works for sporty riders.Photo: Wolfgang Watzke I'm already here! Minimal-assist bikes are designed to enable more descents per time. The concept works for sporty riders.

Despite small batteries: full range height?

But even for handling freaks, at least a longer tour with the battery should be possible. Here, in terms of reach height, our test reveals something astonishing. In terms of pure altitude metres, both bikes outperform even the competition with full-size batteries and motors, despite their small batteries. The bikes managed around 2000 metres in altitude in our practical test - and are therefore well above the reach altitude values of classic E-MTBs.

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However, the values are hardly comparable. While we tested classic E-MTBs in full throttle mode for the most comparable conditions possible, we limited the minimal-assist bikes to the low support typical of minimal-assist bikes, which is even lower than the Eco mode of classic E-MTBs. Specialized and Rotwild therefore only climb the 2000 metres in altitude at low speed, which means that the rider also does a large part of the work.

  On low power, both the Shimano EP8 in the Rotwild and the Mahle motor in the Specialized manage a good 2000 metres in altitude. But only if the rider is doing most of the work.Photo: Wolfgang Watzke On low power, both the Shimano EP8 in the Rotwild and the Mahle motor in the Specialized manage a good 2000 metres in altitude. But only if the rider is doing most of the work.

Conversely, this means that if you wanted to, you could also crawl up the test lap on a classic E-Enduro with a large battery in Eco mode and probably eat up even more metres in altitude than the minimal-assist bikes are capable of.

Minimal-Assist: Perfect for Enduro?

Whether minimal-assist bikes are the perfect enduro bikes is therefore not only a question of perspective but also of the rider's willingness to pedal hard. If you prioritise playful handling, like to pedal in a sporty manner and want the motor assistance for a possible increase in downhill performance, bikes like the Specialized Kenevo SL and the Rotwild R.E375 are definitely an alternative to a bike without a motor. Unfortunately, they also come at a significantly higher price.

  Uphill flow doesn't really come up with the weak drive in the Specialized. On the other hand, you are faster uphill than without the motor and can still let it rip downhill.Photo: Wolfgang Watzke Uphill flow doesn't really come up with the weak drive in the Specialized. On the other hand, you are faster uphill than without the motor and can still let it rip downhill.

However, fans of classic E-MTBs who don't mind the sluggish handling can get even more power and smoother running with a normal E-Enduro, often at a much more attractive price compared to the exclusive minimal-assist bikes.

  You can find the full test of the Minimal Assist enduro bikes, including the duel results as well as the laboratory and reach values, in EMTB 3/2021 - available now from retailers, in the <a href="https://www.bike-magazin.de/emtb/e_mtb_news_neuheiten/emtb-magazin-app-fuer-apple-+-android" target="_blank" rel="noopener noreferrer nofollow">app</a> or in the <a href="https://www.delius-klasing.de/emtb" target="_blank" rel="noopener noreferrer nofollow">onlineshop.</a>Photo: EMTB Magazin You can find the full test of the Minimal Assist enduro bikes, including the duel results as well as the laboratory and reach values, in EMTB 3/2021 - available now from retailers, in the app or in the onlineshop.

Adrian Kaether's favourite thing to do is ride mountain bikes on bumpy enduro trails. The tech expert and bike tester knows all about Newton metres and watt hours, high and low-speed damping. As test manager at MYBIKE, Adrian also likes to think outside the box and tests cargo bikes and step-through bikes as well as the latest (e-)MTBs.

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