Bulls is completely repositioning itself for 2025 with a new Bosch motor and is revising almost all of its key models. The flagships of the new line-up are the carbon enduro Sonic EN-R, trimmed for performance, and the new Sonic AM, also with a carbon frame. However, the more affordable Copperhead Fully has also been given a completely new chassis, a different rear triangle design and now also uses carbon fibre for most models. Although this increases the value of the models, it also raises the prices somewhat.
Striking: Many of the new models focus on exciting everyday features. For example, a cornering light integrated into the frame alongside the familiar integrated rear lights should provide some illumination on the way home when the tour gets longer. At just 30 lux, this is certainly no floodlight, but the cornering light is STVZO-approved and is always on board. What's more, Bulls has now taken over the more affordable Copperhead Fully the rear triangle of the Bulls Vuca with a low-mounted damper. The entry-level bike now also comes with a carbon fibre main frame.
The new Bosch Performance Line CX motor: quieter and with even better modulation
The most obvious innovation on the bikes in the new Bulls fleet: the new Performance Line CX from Bosch, which suddenly appeared at Eurobike a few months ago. At that time it was still masked, but already clearly labelled. Now the details of the new motor are also known: It remains at 85 Nm and 600 watts at its peak, but the new Bosch is slightly more compact and lighter than its predecessor and offers a noticeably smoother ride feel once again, without sacrificing dynamics. Super: The new drive no longer rattles on the downhill. This provides a clear boost in terms of riding enjoyment and has a high-quality feel.
Bulls Sonic EN-R: New E-Enduro with racing DNA
With the Bulls E-Enduro EN-R, Bulls wants to appeal to a particularly sporty target group. According to the developers, the bike is particularly uncompromising in its design to achieve this goal. In keeping with its intended use, the EN-R has 160 millimetres of suspension travel, combined with a 160 mm fork and relies on the Mullet wheel mix with a large 29-inch front wheel. A special feature of the full carbon frame from Bulls: the suspension travel can be reduced to 145 millimetres via a flip chip in the rear triangle. The shorter stroke and the resulting slightly different kinematics should help the bike on climbs.
For downhill riding, you also have a choice of three steering angle options, each adjustable via a slider on the front attachment point of the shock. The full carbon frame should keep the weight of the bike down, while short chainstays (445 millimetres) should give the Bulls relatively agile handling. Especially as the rest of the geometry is not extreme. The reach, for example, is 455 millimetres in size M and 475 millimetres in size L, while the head angle is 63.5 to 64.5 degrees. A 76 degree steep seat angle in combination with a very straight seat tube should put a lot of pressure on the front. For weight reasons and in favour of handling, Bulls relies on a rather small 600 watt battery, with the option of adding another 250 watt hours via a range extender. Unlike many other Bulls bikes, the EN-R comes without a battery lock. The battery is simply secured with an Allen key and should therefore be easier to change when racing.
Prices for the EN-R start at 6799 euros with Rockshox's new Domain fork and more favourable parts. The top model Team with transmission and Rockshox Ultimate suspension as well as Gustav Pro brakes changes hands for 9999 euros. SUV features such as rear and cornering lights, which are now standard on the other Bulls models, are not available on the top-of-the-range EN-R sports bike.
The Bulls Sonic EN-R at a glance
- Motor: Bosch Performance Line CX, 85 Nm
- Battery: Powertube 600
- Frame material: Carbon
- Wheel size: 29 / 27.5 inch
- Suspension travel: 170 / 160 mm
- Adjustable suspension travel and steering angle
- Frame sizes: M, L
- Weight: 21.96 kilograms (BIKE measurement)
- Price: 6799, 7999, 9999 Euro
Bulls Sonic AM: All mountain bike with practical cornering light
The Sonic has also been relaunched for 2025 as a sporty but slightly less extreme platform. It also comes with the new Bosch motor and should have similar qualities to its predecessor: 150/140 millimetres are suitable for touring and moderate trails, the geometry should not be too extreme.
The carbon frame with aluminium rear triangle, on the other hand, is new and now has an integrated rear light as well as a cornering light at the front. In addition, the bike is now on 29-inch wheels instead of mullet wheels. The frame comes with a new rocker but similar kinematics as before. The equipment has been significantly revised at Bulls. Two of the four models come with ABS, the top models also come with Sram's new S-1000 transmission. The prices are between 5799 and 7199 euros.
The Bulls Sonic AM at a glance
- Motor: Bosch Performance Line CX MY2025
- Battery: Bosch Powertube 800, removable
- Frame: Carbon with aluminium rear triangle
- Wheel size: 29 inch
- Suspension travel: 150 / 140 mm
- Rear and cornering light (30 lux)
- Price: 5799 to 7199 euros
Bulls Copperhead AM: price-performance all-rounder
Bulls continues to offer the Copperhead Fully as a more affordable model, taking the supposed entry-level bike to a new level with a new carbon main frame in all but the cheapest model. The new chassis with straight lines, rear and cornering lights and a completely new rear triangle design is clearly recognisable compared to the curved predecessor frame. The supposedly one-piece rear end with low-mounted shock absorber is now much more reminiscent of the rear triangle of the Pinion Vuca bike, from which we were able to elicit a very convincing performance during our test.
The Copperhead also has the new Bosch motor in the bottom bracket, and the bike has a battery with 800 watt hours. Prices start at 4599 euros for the cheapest model with an aluminium main frame, while the top model for 6199 euros is significantly more valuable than before with Rockshox Ultimate suspension. The suspension travel is 140 millimetres at the front and rear.
The Bulls Copperhead at a glance
- Motor: Bosch Performance Line CX MY2025
- Battery: Powertube 800, removable
- Frame: Aluminium or carbon main frame with aluminium rear triangle
- Wheel size: 29 inch
- Suspension travel: 150 / 140 mm
- Rear and cornering light (30 lux)
- Price: 5799 to 6199 euros
The BIKE live blog from Eurobike 2024
As in the previous year the BIKE team will be presenting product news from Eurobike, the events at the trade fair and everything that happens around it in a continuous live blog. Together with our sister magazine TOUR, we will be reporting directly from the bike show in Frankfurt for three days. Have fun reading!
Adrian Kaether
Editor
