Diamant Opal+ (Einstieg: tief)

The "Opal+ (Low Step-Through)" model from Diamant, launched in 2022, is a versatile e-bike that stands out for its high-quality components and well-thought-out design. The price for this model is 3,569 EUR. It features a high-performance aluminium frame with hydroformed tubes, which incorporates a Removable Integrated Battery (RIB) and offers internal cable routing. The frame is also fitted with a Motor Armor and a post-mount disc brake mount, whilst the rear wheel is secured via a 135 x 5 mm quick-release axle. The maximum permissible weight is 136 kg, whilst the bike itself weighs 26 kg.

The braking system consists of hydraulic disc brakes, supplied either by Shimano (MT200) or C-Star Power, depending on availability. Both brake variants use a Centre Lock disc mount with a diameter of 180 mm. Gear shifting is handled by a Shimano Nexus C7000 shifter with 5 speeds. The Suntour XCR32 fork offers 60 mm of travel and features a lockout function to deactivate the suspension when required.

Lighting is provided by the Herrmans MR GO E LED front light and the Spanninga Solo LED rear light. The pedals are the VP-857 model, and the crankset is made of aluminium with a crank arm length of 170 mm, manufactured by ProWheel. The sprocket is a Shimano C7000 Nexus sprocket with 27 teeth, whilst the drivetrain uses a Shimano HG40 chain for 6/7/8-speed systems.

The handlebars are aluminium low-riser bars with a width of 660 mm, a rise of 25 mm and a bend of 11 degrees. The grips are Herrmans Clik, whilst the stem is made of aluminium and features an adjustable rise. The headset is an FSA IS-2 with an integrated, sealed compact bearing.

The bike is fitted with Schwalbe Marathon Almotion tyres, which feature RaceGuard puncture protection and reflective strips. The wheelsets consist of Bontrager Kovee hollow-section rims, which are tubeless-ready and have an internal width of 23 mm. The saddle is a Selle Royal Nuvola model, mounted on a Bontrager aluminium seatpost.

Additional features include plastic mudguards from SKS, a Pletscher Comp Flex 18 kickstand and a lightweight aluminium Racktime luggage rack with the Snapit system. The motor is a Bosch Performance CX model with a magnesium housing, delivering 250 watts of power and 85 Nm of torque. The battery is a Bosch PowerTube with a capacity of 500 Wh, integrated vertically into the frame. The Bosch Intuvia display with remote control allows for easy adjustment of the assistance levels.

Overall, the Diamant Opal+ (low step-through) offers a well-thought-out combination of comfort, performance and functionality, making it an attractive e-bike for everyday use.