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The first Bosch single speed e-bike — for fans of a well thought out design, coupled with reliable technology. This model doesn’t require a gearshift, as the powerful Bosch Active Line Plus drive unit more than compensates for this.
Fully equipment for the city: Karl has a complete lighting system and will impress with its crisp e-support, low-maintenance components and clean look. Karl can also be ridden with the motor switched off; and we also offer optional accessories for baggage and all weather conditions. Karl is reliable in every situation. The Bosch Active Line Plus drive unit ensures a natural riding experience. The special geometry of the frame guarantees sporty cornering. Despite its e-motor, Karl still has the typical ride feel of a Schindelhauer bike. Behind the tidy exterior is a technically complex in-house development that encloses e-motor and battery as compactly and elegantly as possible — without sacrificing functionality or stability.
The design is reduced with every detail well considered, with the hidden cabling a typical Schindelhauer feature. Reliability is paramount here: Our years of proven Gates CDX belt drive are complemented perfectly by the reliable Bosch drive unit.
Karl is a clean commuter pedelec; a genuine alternative mode of transport — without the need to find a parking space.
The ultimate in braking power. The Formula CURA system is a true technical masterpiece with its monoblock brake calliper, radio master cylinder and easy adjustments at the levers. High-class brake callipers and levers made of forged aluminium, combined with a 160mm disc rotor, convincingly demonstrate maximum deceleration values at a weight of only 490 g per set (without rotor and adapter). The brake performance is powerful and easily modulated , thus making it possible to maintain full control, also thanks to ergonomic brake levers.
Formula made a point to develop very ergonomic brake levers when creating their CURA disc brake system. The levers are perfectly shaped and provide excellent brake modulation. Despite the slim look, the levers include a big oil reservoir, which makes for a consistently high performance even under high pressure. Another practical bonus: the position of the vent screws allows refill and venting with the lever still attached.
Our hydroforming fork, especially designed for our e-bikes, sets a new standard for what is possible with the raw material aluminium. Due to its one-piece-hydroforming-method, a completely hollow fork is created, which is both rigid and lightweight and leaves enough space for internal cable routing. The forged drops, an elegant postmount-brake calliper and Thru-axle system complete this multi featured fork. With its big tyre clearance our hydroforming fork is made for every adventure.
We want cyclists to be comfortable and able to explore the city at high speeds. To guarantee both, we opted for the WTB Horizon 650 B. The tyre makes light of cobblestones without the need to reduce pedalling speed. Reflective strips ensure you’re safely seen in the dark and the brown strip on the sides adds a little chic.
The Scoop saddle is minimalist and sporty. The robust Cro-Mo rail offers a stable basis for your daily adventures on the road and the shallow profile boosts comfort. Visually, the saddle looks as if it’s been cast from one piece because of innovative vacuum processing.
Designed for a firm grip: the Viktor Rubber Grips have a fine diamond profile to provide a secure hold and a comfortable feel on longer rides. The clamp mounting ensures they will always stay in place.
Pedal around in style – we sent ourselves on a mission to find the perfect pedal and ended up developing our own: the Urban Pedal. The flat pedal is slip proof to ensure ideal power transmission at all times. Built to be a top-notch performer, the light, CNC-machined pedal is equipped with a CrMo Axle, sealed bearings and IGUS plain bearings.
Shapely and versatile: The Schindelhauer Noirette handlebars combine a classic handlebar shape with contemporary design. Used as an interpretation of the "Stuttgarter" handlebar when mounted upright, a simple turn of the Noirette converts into a sporty drop bar reminiscent of the half drop bars commonly found in racing in the past.
Fork: Hydroforming aluminium fork (tapered), 15 mm through-axle, for post mount disc brakes
Headset Tange Seiki integrated, tapered 1 1/8-1,5
Motor: Bosch - Active Line Plus, power: 250 W, torque: 50 Nm, max. support up to 25 km/h
Battery: Bosch - Powertube 500, intube battery, energy: 500 Wh
Display: Bosch - Purion
Power Transmission: Gates Carbon Drive - CDX, front 55T, rear 20T, belt 120T
Crank Set: Miranda - Delta
Pedals: Schindelhauer - Urban Pedal, aluminium, CNC machined
Stem: Satori - Stealth, aluminium
Handlebar: Satori - Noirette aluminium
Saddle: FABRIC - Scoop Shallow Sport
Seatpost: LightSKIN - seat post integrated LED-rear-light
Grips: Schindelhauer (bolt-on)
Wheels: Schindelhauer - high flange front hub disc, Schindelhauer - rear hub disc, Alexrims - EXR25 rims with eyelets, Sapim - Race spokes, 3-cross laced
Brakes: Formula - CURA disc brakes (hydraulic), 160 mm
Tyres: WTB - Horizon 47-584, with reflex stripes
Weight: 19.7 kg (size M)
Mudguards: Mudguard mounting possible
Pannier Rack: Front rack mounting possible
Lighting: Supernova - Mini 2 front light, seatpost with integrated LED-rear-light
For the Bosch system, we have developed completely new frames with a very compact motor bridge. Due to the close, optimal integration of the motor we achieved an, inside the E-Bike segment, incomparably short chainstay. This makes for a short wheelbase while still maintaining a comfortable seating position. The top tube is comparably long and the riding feel very agile.