Bosch Gen1 Tuning
Bosch Gen1 (Classic Line) Tuning
1. About Bosch Gen1 Engines
Bosch is the leading manufacturer of electric bike drive systems in Europe. The German company has a long history; in fact, it has already been established in 1886. It produces high-quality household appliances, electrical tools and industrial technology etc. Since a couple of years, Bosch started to develop and manufacture electric bike systems, too. In the meantime, Bosch electric bike drive systems are being used from more than 50 (!) electric bike brands like Bergamont, Bulls, Cannondale, Cube, Diamant, Flyer, Focus, Gazelle, Ghost, Giant, Grace, Haibike, Hercules, Kalkhoff, Kettler, Kreidler, KTM, Merida, Pegasus, Raleigh, Scott, Sinus, Univega, Winora and many more. The Bosch electric bicycle systems consist of the engine, an efficient battery with charger and the control unit with a little on-board computer. All components match each other perfectly. Nowadays, Bosch is one of the most important manufacturers of electric bike systems on the market.
2. Bosch Electric Bike Engines (Gen1 = Classic Line)
At the moment, Bosch produces 3 different electric bike drive systems: Besides the approved Classic Line there are the newer Active- and Performance-Line systems (Performance Line being the strongest one). There are drive systems for all target groups. By the way, all Bosch electric bike systems are equipped with mid-mounted engines.
At this point, we would like to present you the highly approved Bosch Classic+ Line system. The Bosch Classic Line system is strong and offers unobtrusively thrust as well as optimal engine support – this guarantees for driving pleasure in every situation. The system is equally suitable for commuters, leisure time cyclists, comfortable and sporty bikers etc.
The system comprises the following components:
Drive Unit Classic+
The engine. We have to distinguish between the “Drive Unit Cruise” with motor support until 25 km/h and the “Drive Unit Speed” with support until 45 km/h. What both versions have in common: The Drive Unit is very robust, quiet and works discreet – but it always provides exactly the matching support. This is made possible by 3 sensors which capture torque, speed and cadence 200 times per minute! Due to its low centre of gravity the Bosch mid-mounted engine has a very good weight distribution which leads to a very stable driving behavior and high maneuverability.
Here are the most important data of the Bosch Drive Unit Cruise 25 km/h:
- Power: 250 Watts
- Max. Motor Support: 25 km/h
- Support: 30%-200% (gear hub) / 30%-250% (derailleur gears)
- Torque: 30-50 NM
- Weight: < 4 kg
The accumulator of the Bosch Classic+ Line. You can choose between the “PowerPack 300” (300 Wh / 8,2 Ah) and the “PowerPack 400” (400 Wh / 11 Ah). Both accumulators are durable lithium-ion-batteries without memory-effect. It´s possible to choose between an accumulator placed at the frame or at the luggage carrier. Of course, a matching charger is included, too (Charger Classic+).
This is the command centre of the Bosch Classic+ Line system, comprising of the on-board computer “Intuvia” and the separate control unit. Here you can choose one of the 5 support modes (Turbo, Sport, Tour, Eco or Off) or let yourself display the current speed etc.
3. Is it possible to optimize Bosch Gen1 Engines?
Yes! Nowadays, there are some highly efficient tuning tools which take away the 25 km/h speed limit and thereby make your Bosch Gen1 (Classic Line) engine much faster.
4. What Bosch Active & Performance Line Tuning Tools do exist?
At this point, we would like to present you 5 recommendable tuning tools for Bosch Classic Line electric bike systems:
The JUM-Ped for Bosch Classic engines simply takes away the electric bikes speed limit. Even if the tuning is activated, the speed and the covered distance will be shown correctly. You don´t need any special technical skills or special tools to install and use the JUM-Ped. Furthermore, you can restore your electric bikes original condition whenever you want to. There are two versions of the JUM-Ped: One with plugs for the Intuvia display, and one version with plugs for the (older) HMI display. more
B) ASA eSpeed B25.13
A tuning tool for Bosch Gen1 (Classic Line) engines which removes the 25 km/h speed limitation and allows you to reach very high speeds with full motor support (the maximum speed you can reach depends on the system you use). The special thing of the ASA eSpeed device is that it does not influence the functionality of the HMI – this means, your display will always show the correct speed (even if the tuning is activated). Even additional features like mileage, max-speed and average speed will not be affected. If you install this tuning tool no cables will be damaged – this means, you can restore your electric bicycles original conditions without problems. Any additional stuff like Dongles, switches or cables aren´t necessary or visible. The electronics of the ASA eSpeed Tuning Tool is microprocessor controlled. You can use the control elements of the HMI to program user-specific functions. Furthermore, the device has the ability to perform a self-calibration for different wheel sizes. The light function can be used for its original purpose, too. The ASA eSpeed B25.13 tuning tool is compatible with the following Bosch Classic Line systems (support until 25 km/h): Year of manufacture 2011-2012 (HMI) / Year of manufacture 2013-2014 (Intuvia). This version of the ASA eSpeed is not compatible with Bosch Active & Performance Line engines. more
C) Sx2 Dongle
Speed Tuning for your Bosch Gen1 (Classic Line) electric bike. The easy-to-install Dongle doubles the engine support from 25 km/h to 50 km/h. This tuning tool simply has to be connected to your electric bikes speed sensor (“plug & drive”). This causes no changes in the engine electronics so that all Bosch driving modes will be fully retained. If you want to undo the tuning, simply pull off the Dongle. The Sx2 Dongle requires no extra battery and is 100% maintenance free. Of course, it is robust and fully outdoor-suitable, too. You need a special cable kit to install the Sx2 Dongle. If you want to, you can order the optional cable kit with “power switch” – the switch enables you to turn the Dongle on or off with the light switch of your Bosch Intuvia display. The Sx2 Dongle tuning tool is available for the following wheel sizes: 20” / 26” / 27,5” / 28” / 29”. more
D) Badassebikes Chiptuning Box Typ 3.4
The Badassebikes Chiptuning Box shifts the speed limit of the Bosch (Gen1) Classic Line engine from 25 km/h to more than 50 km/h. This works as follows: From a speed of approx. 16 km/h the device will halve the transmitted speed which enables motor support to more than 50 km/h. The Box itself only has the size of a matchbox and it can be installed very quick and easy. It simply has to be attached to the Bosch speed sensor. Just attach it and fix it with an O-ring. After the magnet on the bicycle spoke has been shifted, the tuning is activated and you can start with twice as much engine support! If you want to undo the tuning and drive legally on public roads again, simply open the O-ring and pull off the Box. Shift the magnet back into its original position, and your electric bike is restored to its original condition. The power supply for the Chiptuning Box comes from a special battery which allows an operation time of about 6.000 kilometres (thanks to low-power-technology). more
E) Tuning Speedchip / Configurable
This is a tuning module for Bosch Classic Line and Classic+ engines. The tuning Speedchip is equipped with a micro USB port which makes it possible to configure the device via your PC. This allows you, for example, to set the maximum engine support to an individual level from 15 to 75 km/h (about 46 mph). The Speedchip can be conveniently switched on or off via the key combination “Down-Up-Down-Up”, even while you are on the road. Your Bosch display will still show the correct speed and kilometres. By the way, the Speedchip does not have to be uninstalled if you want to carry out Bosch system updates. Important: According to the manufacturer, this tuning tool should be installed by a specialist. more