8 I General User Manual› Be ready to brake, especially if you are not surewhat lies ahead or are riding downhill.4.5 Bike safety› Only bikes that have been approved for use inpublic places, as per the applicable regulations(e.g. StVZO in Germany), may be used.› Observe the maximum permitted gross weight ofthe various bike types, as this could otherwiselead to breakage or failure of safety-relevantcomponents. The brake system is also only de-signed for the maximum permitted gross weightof the bike. For a list of the maximum permittedgross weights, refer to ➠ Chapter 30 "Technicaldata".The gross weight is the sum of the weightof the bike + weight of the rider + weight of theluggage. The gross weight also includes towedweights such as trailers.› If you notice that a part is damaged or warped,do not use the bike until you have had the partreplaced as otherwise parts that are important tooperation of the bike may fail.› Observe the maximum load-carrying capacity ofthe pannier rack. This is marked on the pannierrack directly (also refer to ➠ Chapter 30 "Techni-cal data").› Have maintenance and repairs carried out by aprofessional bike workshop (for maintenanceintervals, refer to ➠ Chapter 28 "Regular inspec-tions").› If you make technical changes to your bike, takethe national traffic regulations and applicablestandards into account. Bear in mind that thiscould render your warranty invalid.› Only replace electrical components on your bikewith type-tested parts.› Only ride with suitable lighting in unfavourablelighting conditions such as fog, rain, dawn/twi-light or in the dark.Bear in mind that with intensive use of your bike wearincreases accordingly. Many bike parts, particularlyon light sports bikes, are only designed for a specificperiod of use. If this is exceeded, there is a consider-able risk that components could fail.Perform care and maintenance on your bike regularly.In doing so, check important components, particularlythe frame, fork, wheel suspension, handlebar, handle-bar stem, seatpost and brakes for warping and dam-age. If you notice changes such as cracks, bulges orwarping, have your bike checked by a specialist cycleshop before using again.5 Legal provisionsIf you wish to use your bike in road traffic, make sure thatyour bike complies with the road traffic regulations. Ifnecessary, observe ➠ Chapter 22.2 "Special regulations forroad bikes".5.1 Applicable road traffic licensingregulationsBefore you take your bike on the road, find out what therelevant national regulations in your country are – inGermany, these are the Road Traffic Licensing Regulations(StVZO) and the Road Traffic Ordinance (StVO).In Switzerland, the applicable regulations can be foundin the Ordinances relating to Technical Requirements forRoad Vehicles, Articles 213 to 218.If you wish to ride in road traffic in Austria, you must ob-serve Ordinance 146 / Bicycle Ordinance.Make sure each time you use your bike that it actually isin the prescribed roadworthy condition, that the brakesare properly adjusted and that the bell and lighting setcomply with the relevant regulations in your country, inGermany these are the Road Traffic Licensing Regulations(StVZO).In some EU countries, battery-operated front lights andrear lights may only be used by road bikes weighing lessthan 11 kg. They must always be carried and have an offi-cial approval (sinuous line and K number). All other bikesmust use dynamo lighting sets. Every component of thesystem must carry the official test mark which identifies itas "approved". The applicable regulations in your countryapply in this regard, e.g. the Road Traffic Licensing Regu-