about us

Motorcycle technology and accessories
for 2 valve BMW Boxer models from /5 onwards
Austrian SIEBENROCK support point dealer since 2009

Motorcycle technology and accessories 
for all classic 2 valve BMW Boxer models from /5 onwards

This web shop emerged due to my passion for BMW Boxer Models and good contacts with the company Siebenrock. We see it as our duty to support the BMW flat twin community support with the necessary spare parts, accessories and tuning parts of best quality available.

As a longstanding employee of Bosch in the field of Diesel fuel injection technology the motto "Invented for Life” has strongly marked me. For us, the BMW Motorcycles 2V are "Built to Survive".

Since the beginning of the brand numerous racing successes, and many world travellers have already proven this fact.

Also Hubert Auriol and Gaston Rahier have written history on their BMWs in Paris Dakar Rallies. At the age of 69 Ted Simon got on a R 80 GS and circumnavigated the world for a second time. He was the inspiration for Ewan McGregor and Charley Bormann to their "Long Way Round" on modern BMW 1150 GS. That 2V BMWs also have a life after the end of series production have the numerous BMW riders and enthusiasts successfully demonstrated.

Companies like Siebenrock, HPN and of course AFB-Sonnleitner will assist you to continue that life.

If you also have a passion for BMW flat twin bikes, then we are of AFB - Sonnleitner are here to support you with the best quality spare parts, functional accessories and race proven tuning components. You will not only find everything for your 2V-Flat twin, we also stock some parts for successor models. Because maybe you have had a new BMW for some time and just don’t want to get rid of your old flat twin BMW.

Herbert Sonnleitner



Ing. Herbert Sonnleitner | Auberg 313 | 2084 Weitersfeld | Austria | Telefon: +43 (0)664 - 976 92 32 | office@afb-sonnleitner.at