Cross Superlite Evo SX: Under 20 kilos – Bulls unveils a lightweight e-bike

A well-balanced e-bike with a sporty feel

​The Bulls Cross Superlite Evo SX is not a compromise, but a clear statement: lightweight, sporty and suitable for everyday use. For those who don’t want to carry luggage on their bike and would rather ride a nimble, lightweight and cleverly equipped e-bike, this will offer a compelling package at a fair price from early 2027. We’re looking forward to the first in-depth test. - Adrian Kaether, Test & Technology Editor

Anyone who has ever hauled a modern trekking e-bike up a set of cellar stairs knows that, in this category, lightweight construction and suitability for everyday use often go hand in hand. Bikes fitted with a luggage rack, lights and mudguards often weigh in at over 28 kilos. Bulls aims to change that with the new Cross Superlite Evo SX – and is launching a special edition of the tried-and-tested Cross Lite Evo SX for the 2027 model year.

A clear commitment to lightweight construction – visually too

Anyone seeing the Superlite Evo SX for the first time will immediately notice the difference: the aluminium frame is finished simply with a clear coat that showcases the natural metal surface. This fits in perfectly with the bike’s minimalist, sporty philosophy. True to the motto ‘what you see is what you get’.

The most obvious weight-saving feature is at the front of the bike: a carbon rigid fork, which not only saves a considerable amount of weight compared to budget suspension forks, but also requires no maintenance. Bulls also omits a luggage rack as standard – a logical choice when every gram counts. Anyone who still wants to carry luggage can fit one on later; however, the bike is designed for sporty, luggage-free riding.

19.9 kilos – even with the low-step model

This consistent design pays off on the scales. Even the low-step model weighs in at just over 20 kilos when fitted with pedals. That’s a remarkable achievement for a fully-equipped trekking e-bike with lights, a removable battery and smart features such as Monkey Link 2.0 – and a further three and a half kilos lighter than the previous lightweight trekking e-bike, the Cross Lite Evo. Those who opt for the diamond frame on the Superlite are likely to find it even slightly lighter still.

Bosch SX and 400 watt-hours

This is made possible not only by the stripped-back spec and the carbon fork, but also by the drive system: the Bosch Performance Line SX, with its compact housing and a weight of just around two kilograms, is the lightest Bosch mid-drive motor ever. The 55 Nm motor offers pleasantly natural assistance and works very well with a sporty, active riding style. Optionally, the torque can even be increased to 60 Nm, but this isn’t the bike for those looking for plenty of power for heavy-load tours.

The battery in the bike has a capacity of 400 watt-hours and can be easily removed from the down tube. This is handy if the bike cannot be parked right next to a socket. With economical riding, a range of around 80 kilometres is realistic. Get more with the Power More Range Extender (reviewed here). A compact Purion 200 display completes the e-system.

Monkey Link for smartphones and accessories

You won’t find navigation features like those on Bosch’s Kiox display here. Instead, the Bulls has a Monkey Link 2.0 interface. You can attach a smartphone here using SP Connect Standard and, with the right accessories, even charge it wirelessly – for example, to use your own sat-nav app such as Google Maps or Komoot whilst riding. A more powerful headlight can also be easily retrofitted here. However, lighting suitable for everyday use is fitted as standard anyway.

Schwalbe G-One Overland: Versatile comfort on 50 mm tyres

When it comes to tyres, Bulls relies on the Schwalbe G-One Overland 50 mm wide – and in the all-weather 365 version, which, thanks to its all-season compound, performs well even at low temperatures and on wet roads. With a width of 50 mm, the Superlite Evo SX rolls comfortably over potholes and gravel tracks, whilst remaining slightly more comfortable than many lightweight e-bikes with narrower tyres. Incidentally, wide tyres generally roll more smoothly than narrow ones. This is likely to be particularly noticeable when pedalling above the support threshold.

Shimano Deore: Sporty, precise gear changes

The Shimano Deore RD-M5120 in the 11-speed Shadow version ensures crisp, precise gear changes – controlled via the SL-M4100 shift lever. Shifting is a real pleasure, particularly when combined with the Bosch SX, which requires far less caution when shifting than heavier motors. The Superlite Evo SX is brought to a reliable stop by Shimano BR-UR300 hydraulic disc brakes with 180 mm discs (SM-RT54 CL) – proven braking power for all conditions, combined with a good bite point.

Price and availability

The Bulls Cross Superlite Evo SX is available in two frame styles – diamond and low-step – and is due to go on sale in early 2027. The price is 3,499 euros – good value for a thoroughly well-designed, lightweight trekking e-bike featuring branded components and a high-quality carbon fork.

>> Even lighter but with a built-in battery: the Centurion Speeddrive with Bosch SX put to the test

Technical Specifications: Bulls Cross Superlite Evo SX (2027)