DT Discovery TimelineThe connected virtual museum

Motorcycle museum record

K 100

BMW mounted a liquid-cooled four-cylinder engine longitudinally on its side in the K 100, creating a completely different technical branch alongside the boxer twins.

BMW Motorradmanufacturer
touringcategory
987 ccengine capacity
Liquid-cooled longitudinal inline fourengine

Museum plaque

Why this bike belongs here.

Proof that BMW would abandon its most recognisable engine format when regulation, performance and product strategy demanded another solution.

BMW mounted a liquid-cooled four-cylinder engine longitudinally on its side in the K 100, creating a completely different technical branch alongside the boxer twins.

Why it matters. Proof that BMW would abandon its most recognisable engine format when regulation, performance and product strategy demanded another solution.

Technical identity

The engineering at a glance.

This first expansion records museum-level specifications rather than pretending every year and market used one immutable specification.

EngineLiquid-cooled longitudinal inline four
Capacity987 cc
Production era1983–1992
CategoryTouring
TransmissionAdd by variant/year
Final driveAdd by variant/year

Research starting point

Built to improve, not freeze.

Model-year specifications can vary. The museum keeps the stable historical interpretation here and leaves room to add exact variants, racing derivatives, engine codes and source-specific specifications later.

BMW Motorrad source / heritage starting point
Open source ↗