Siebenrock SGS2 Exhausts
Manufacturer details: Siebenrock
Products for your BMW
Classic bikes from BMW hold a fascination that few other brands can match. Jochen Siebenrock also fell under the BMW spell. Ever since he established his firm, he has specialised in preserving the classic forms of the past while bringing them right up-to-date through innovative engineering. The development of technically enhanced remakes of sought-after accessories focuses on eliminating known weak points from the start. Thus Siebenrock components mean more performance, more sound and, most important of all, more riding enjoyment with classic bikes. All Siebenrock products are manufactured in the European Union, and more than 80 percent are even "Made in Germany".
QUALITY MADE IN GERMANY!
By purchasing this item you have chosen a premium-quality product with superior German workmanship. This internationally acknowledged mark of quality means that this product is the result of efficiently coordinated development and production processes, technological expertise, continuous quality controls.
Modern vehicle accessories of different types now frequently carry an "E" approval mark valid throughout Europe. This "E" mark, which is made up of a combination of letters and numbers, is clearly displayed on the product and shows the application tested, the country in which testing was carried out and, where appropriate, the vehicle type to which approval applies. EC type approvals for exhaust systems, for example, are always issued for a specific vehicle type, whereas in the case of lighting, they apply to an entire group of vehicles, e.g. motorcycles.
This certification mark is the sole proof of legality stipulated by law, i.e. no written report or entry in the vehicle documents by a TÜV (German Technical Inspection Association) test centre is required. However, when it comes to installing accessories, the relevant guidelines of the Road Traffic Licensing Regulations (StvZO) must always be observed.
At a roadside check or a TÜV vehicle inspection, the registered keeper is only required to show the "E" mark. It is then up to the official in charge whether to check the mark with the Federal Motor Transport Authority (KBA) in Flensburg (or equivalent type approval authority in other countries), which is able to decode all certification marks.
Stainless steel is a collective term for rustproof steel. It is much more resistant to corrosion than non-alloyed steels. Stainless steel does not deteriorate, and is hygienic, UV-resistant, non-corroding, fracture-proof, non-toxic and environmentally friendly. It does not weather and can be recycled in its entirety, even after many years. Technically, the term "stainless steel" refers to corrosion-resistant steel alloys with a wide variety of compositions but always containing a high percentage of chromium (usually a minimum of 10.5%)
Stainless steel should be cleaned regularly like all other materials, especially after exposure to salty air (near the coast), and also at regular intervals.
Water can easily collect in corners, edges and screw connections, resulting in corrosion. So careful cleaning is important, and if necessary screws should be undone in order to clean the parts thoroughly.
Do not leave rusty steel parts against stainless steel to avoid the rust "contamination".
Siebenrock SGS2 Exhausts
Siebenrock stainless steel complete exhaust system SGS2:
Good workmanship, terrific sound, low weight and a perfect performance charac-teristic, were the specifications in the development of Siebenrock SGS2 exhaust systems for the R80 G/S, R80/100 GS and R80/100 R models.
Made from polished stainless steel, the SGS2 variants give the motorbikes from Bavaria an even nobler appearance.
By using a Y-pipe instead of the original collector box, the systems looks very slender and sportive. Because of this construction, it was possible, among other things, to reduce the weight below that in the standard machine by an enormous FIVE kg. In the meantime an oval stainless steel silencer is responsible for the acoustics; it allows the exhaust gases to escape with a sportive and muffled sound. But that is not enough. Innumerable measurements were needed till the perfect curve on the diagrams could be obtained. It was exactly the revs midrange that could be so improved that there was no longer any talk of a dropout but one could confidently speak of a massive increase in power and torque.
The SGS2 systems are supplied with all necessary attachment parts and an ABE that is valid for the whole of Europe. The fitting is easily carried out thanks to very simple clamp and spring mountings. The use of the SGS2 systems restricts in no way the mounting of the original luggage systems.
The exhaust systems fit the listed unmodified vehicles and is highly recommended for vehicles which are fitted with Siebenrock Power- or Replacement Kits.
Three different exhaust exit versions are available depending on the technical conditions of the vehicles: Middle exhaust pipe path (half-high), lower exhaust pipe path (low exit) and upper exhaust pipe path (high-up).
When two person vehicle operation on G/S and GS models is desired, a special left side footpeg-bracket must be ordered separately: Art.-No. 60190453.