Which i:SY is right for me?

As a general rule, it's best to try out, try out and try out again!
You will find the right i:SY for you which meets your preferences and requirements.

First of all, you need to know that the basic components are identical in all i:SY models. The difference lies in the different Bosch motors, different gear shifts and drives (chain or toothed belt).

i:SY S8


Our S8 models are fitted with a SHIMANO Nexus 8-speed hub gear. The S8 RT features a back-pedal brake while the S8 F has a free-wheel. Fitted with the finely tuned Bosch Active Line Plus motor, the S8 F and S8 RT are perfectly equipped for everyday use. This model is supplied with a chain drive only. The S8 K and the S8 F B are exceptions. With its derailleur gears, the S8 K is essentially designed for a more sporty ride with the bike weighing less. The S8 F B primarily impresses due to its brown handles, saddle and tyres.

i:SY S10




Our new S10 model is fitted with SHIMANO Deore 10-speed derailleur gears. Used in combination with a powerful Bosch Performance Line CX drive, the S10 is at home on any terrain. It is fitted with a Suntour suspension fork, which fully exploits its potential off paved roads.

i:SY E5



The E5 model series impresses sporty commuters in mainly urban areas with a 5-speed SHIMANO hub gear containing a toothed-belt drive, all developed especially for e-bikes. This series contains the Bosch Performance Line motor. The E5 ZR F CX model boasts the highest-performing Bosch motor. The Performance Line CX is used in this version. The Comfort versions feature a BySchulz suspension seat post and handlebars with a greater offset plus a shorter stem and a larger saddle.

i:SY N3.8




The N3.8 ZR models are equipped with the continuously variable Enviolo 3.8 hub and an easy-care toothed-belt drive. Featuring the dynamic Bosch Performance Line motor, it is optimally equipped for use on flat or hilly terrain by frequent riders and pleasure cyclists alike. The N3.8 B is a real head turner with its brown components and its exclusive urban blue.

i:SY R14



Our R14 ZR models are equipped with a 14-speed ROHLOFF hub gear and an easy-care toothed belt drive. The gears are mechanical. The powerful Bosch Performance Line CX motor is built into this model, the perfect companion on challenging varied terrain.

All compact models


"All compact bikes are also available in XXL for taller people up to 210 cm or for smaller cyclists with a larger body size (up to 150 kg)."

Martin Kuhlmeier - i:SY founder & developer
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