38 Products
BMW Customization Workshop · Neuwied
BMW K100 & K1100 conversion parts the Flying Brick
Four cylinders, mounted horizontally: The BMW K100 – affectionately known as the "Flying Brick" – and its big sister, the K1100, are the foundation for some of the most spectacular café racers ever built. Here you will find the right conversion parts, including JvB-moto parts.
- Construction time1983–1999
- Displacement987–1,092 cc
- Performance90–100 hp
- Engine4-cylinder
38+
Matching parts
1994
Manufacturer since
TÜV
Expert report & ABE
Since 1994BMW conversion workshop in Neuwied
Conversion by assembly group
Everything for your K100 conversion
From the tail to the electrical system: Choose the assembly – or scroll directly to all parts for the BMW K100 & K1100.
01
Tail conversion
Tail conversion kits with TÜV approval, side covers, license plate holder on the final drive.
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02
Front conversion
Headlight masks, speedometer brackets, handlebars, and cockpit parts.
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03
Exhaust
Exhaust systems, manifolds, and brackets for K-models.
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04
Chassis
Struts with ABE, progressive fork springs, and service.
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05
Electrical
Wire harnesses, ignition lock brackets, sensors, and controllers.
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06
Chassis
Brake discs, fenders, battery boxes, and add-on parts.
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All parts for the BMW K100 & K1100
38Parts available
Why Sport Evolution
Parts from the converter, not from the retailer
1994
Boxer specialist
For over 30 years, we have been building, restoring, and tuning BMW boxer and K-series models in Neuwied.
TÜV
Registrable
TÜV Rheinland certified company. Many parts come with a technical report or ABE (General Operating Permit).
i250
Custom test bench
Carburetor and fuel injection tuning on our Dynojet dynamometer.
100%
Self-driven
Our parts are created on real concept bikes – tested on the road, not in a catalog.
Guide
The BMW K100 rebuild
The Flying Brick as a café racer
With the K100 in 1983, BMW introduced a longitudinally mounted, water-cooled inline four-cylinder engine for the first time. This distinctive block defines every custom build – hardly any other engine looks as technical and unique. Added to this are high performance and great durability. The K1100 (1991–1999) increased the displacement even further to 1,092 cc.
Find out more in the K100 & K75 Customization Guide.
BMW K100 & K1100 Profile
| Models | K100, K100 RS, K100 RT, K100 LT, K100 RS 4V, K1100 LT, K1100 RS |
|---|---|
| Production period | 1983–1992 (K100), 1991–1999 (K1100) |
| Engine | Liquid-cooled inline four-cylinder, longitudinally mounted |
| Displacement | 987 cc (K100), 1,092 cc (K1100) |
| Power | 90 hp (K100 2V), 100 hp (K100 4V / K1100) |
| Rear suspension | Monolever (early K100), Paralever (4V, K1100) |
| Nickname | Flying Brick |
Monolever or Paralever?
The early K100 models have a Monolever swingarm, while the later K100 RS 4V, K1, and K1100 models feature a Paralever swingarm. This distinction is important for tail conversions, license plate holders, and shock absorbers – our product titles always specify which one it is.
The most important conversion parts for K100 & K1100
- Tail conversion kits with TÜV approval – our own kits as well as the JvB-Moto tail.
- JvB-Moto parts: Headlight mask, radiator cover, fender, license plate holder.
- SE side covers and battery box for a clean tail look.
- License plate bracket for the final drive for Monolever and Paralever.
- Suspension: Shock absorbers, progressive fork springs.
- Brakes: Sport brake discs with ABE (general operating permit), brake pads.
FAQ
Questions about BMW K100 & K1100
Can't find your question? Use our parts inquiry form – we will respond personally.
Why is the K100 called the "Flying Brick"?
The longitudinally mounted four-cylinder engine looks like a brick from the side – hence the nickname. It is precisely this look that makes the K100 so striking as a café racer.
Do K100 parts fit the K1100?
Many parts yes, especially front and electrical components. For the rear and swingarm, it depends on whether a Monolever or Paralever is installed.
What is JvB Moto?
JvB Moto is a well-known manufacturer of K-model conversion parts. We carry a selection of JvB parts such as tail conversion kits, headlight masks, and radiator covers.
Do the K100 conversion parts have TÜV approval?
Unsere Heckumbau-Kits und viele weitere Teile werden mit TÜV-Gutachten oder ABE geliefert. Die Angaben stehen beim Produkt.
Do you build complete K100 café racers?
Yes, we build K-models entirely in our workshop. Take a look at our K75 & K100 Concept Bikes.