I got a email from Siebenrock this morning. I had no idea they were doing this sort of thing. Pretty neat. Copied the press release here. Don't know anything else. Press-release Three variants for every demand Exclusively and individuell Siebenrock-BMW GS2 now in series production Wendlingen, November 3rd, 2010. Good news for all friends of the individual 2-valve boxer. BMW-expert Siebenrock now starts the production of the GS2 again. Since 2005 the Wendlingen based firm manufactured their interpretation of the classic 2-valve GS in about 25 examples, each one individually according to the customers desire. As a result of the steadily increasing demand a small series is now planned in 3 variants Classic, Enduro and Sport. "Our GS2-models are more popular than ever. During this years Intermot we received several concrete orders besides of many inquiries. Therefor the series production is not more than a logical step for us - particularily because we where able to extend our production capacity with Nov. 1st considerably", Jochen Siebenrock explains. With BMW Bayer concentrating on the online business Siebenrock now comes with the infrastructure necessary for a series production. The Siebenrock-GS will nevertheless remain exclusive for the owner to-be still has the option to compose his GS2 individually. But Siebenrock awaits that most of the potential buyers will be glad to have the opportunity to order the bike that fits their demands bestin a pre-configured model. Classic look with Siebenrock technique inside the GS2 Classis With a look that is only cautiously modified compared to the BMW series model the "GS2 Classic" livens up the eighties. The long rear frame end, the small lamp mask and the fitting wind shield generate the charasteristic look of the early G/S-models, whilst the weight optimized stainless-steel exhaust system SGS2 beams the boxer in terms of looks and sound into the present time. The engine power is also adapted to the contemporary expectations due to the legendary Siebenrock power kits. Handy fun mobile on- and offroad - the GS2 Enduro The "GS2 Enduro" makes a good figure on-road, but shows at first sight that she wants more.And because off-road each pound counts the Enduro is forcefully weight-optimized with a short rear frame end, single-seat and a small Enduro-lamp mask - the well-proofed SGS2 exhaust system alone saves 5 kg approx. Firm off-road suitable components are to be seen on the "GS2 Enduro" also on a closer look: the Enduro-suspension and the equally named oil sump with its rugged engine protection cannot easily be upset. The two piece valve covers add to the enduro look and result in additional protection. The power of this GS2 is increased like that of her classic sister by the use of Power- or Replacement- Kits. Power pure for street and raceway - the GS2 Sport With the third of the bunch Siebenrock addresses the port-oriented BMW fans. The "GS2 Sport" is power-optimized without compromise : 1070 ccm displacement, 80 horse powers and a maximum torque of up to 116 Nm speak a clear language. This is made possible through the most ambitioned power enhancement kit from Siebenrock, the Big Bore Kit which is awailable in 4 variants with the beginning of this year. Double spark plug ignition, bigger break disc, Sport shock absorber and SGS2 exhaust system are additional components that Siebenrock uses to increase the riding fun. Each one of the GS2 models is offered in a single tone or stylish dual tone painting with hand striping. The GS2 riding fun can be entered at a starting price of approx. 10.000 Euro for a totally new assembled bike. Everybody having the intention to convert his seies boxer by himself can order the parts required directly at Siebenrock/Wendlingen or a base dealer of his choice.