2023 Rotwild

R.X275 PRO

With a claimed weight of 15.3kg in top spec, the Rotwild R.X275 is the lightest production full-sus e-bike on the market. It also happens to be an absolute weapon on the right trails. Read our buyer’s guide to the best electric mountain bikes Need to know Ultra lightweight down-country e-bike with 120mm rear travel Skinny down tube houses a 250Wh battery TQ motor delivers 50Nm torque in near silence Peak power detuned to 200W, but Boost button lets you bump this up to 300W Carbon frame with flex-stay swingarm to save weight Weighs from just 15.3kg for the Ultra spec in size Medium At one end of the spectrum, the e-bike arms race is all about packing in the biggest batteries, and offering the greatest range, using maximum assistance. Meanwhile, at the opposite end, brands are tripping over each other to build the lightest emtb on the market.  Last year alone, Pivot launched the Shuttle SL, with a special lightweight version coming in at 16.44kg. Hot on its heels were the weight weenies at Scott, cleaving chunks off that figure with the 15.6kg Lumen eRide. Even if the smallprint revealed that Scott used a size small and a billionaire’s spec to to hit that weight.  Then BMC threw its hat into the ring with the TQ-powered Fourstroke AMP LT LTD. It used a more sensible real world spec compared to the Lumen, and only ended up a few hundred grams heavier, with a claimed weight of 15.9kg.  Now there’s an even lighter option on the market, and it doesn’t use a pocket-sized frame to sneak ahead of its rivals at the weigh in. Rotwild’s catchily-named R.X275 is a claimed 15.3kg in size medium, and yet the top model costs €3,500 less than the most lithesome Lumen SL.  Frame Rotwild has achieved this impressive weight with a two-prong approach.  the svelte carbon chassis forms the foundation of the R.X275 and, at 1,850g, saves 100g over the Scott. A strategy of simplicity and minimalism manifests in details like the flexstay rear end – that cuts down on pivots and bearings – the flat mount disc mount, and the internal cable routing that runs along grooves in the battery housing, which negates the needs for internal fixtures.  Motor and battery Talking of the battery, a useful 600g weight saving comes from substituting TQ’s commonly-used 360Wh unit for a smaller 250Wh power pack. Rotwild also eschews the complex remote lockouts found on the Scott, so the R.X275 ends up well ahead of its rival on the scales. And if you’re worried about range, there’s a 160Wh extender battery that fits in one of the two bottle mounts on the down tube via a custom Fidlock interface.  Reducing the peak power is another way Rotwild mitigates against that reduced battery capacity. TQ’s normal 300W max power has been chipped back to 200W, but a nifty red Boost Button on the handlebars lets you amplify this to the full 300W for up to 30 seconds. In …Continue reading »

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Maybe the World's Lightest eMTB at 15.3kg, the Rotwild R.X275 trail ebike combines a light TQ drive with a unique Boost Button twist remote...

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Wir haben das neue Light-E-MTB ROTWILD R.X275 ULTRA mit TQ HPR 50-Motorsystem, 250-Wh-Akku und 130/120 mm Federweg (v/h) für euch getestet.

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