The 665 Velika Reka – Radeče road is situated in central Slovenia, traversing a region characterized by rolling hills and forested areas. The route begins near the town of Radeče and extends towards Litija, passing through several settlements including Borovak pri Podkumu, Zagrad, Titova ulica, Jagnjenica, Njivice, and Stari Dvor. The road covers a total distance of approximately 28 km (17.4 miles), making it suitable for a half-day ride or as part of a longer tour through the region. An interactive map showing the road can be found at the end of the article.

The 665 Velika Reka – Radeče road is primarily surfaced with asphalt, offering a high-quality riding experience. The surface quality is rated as very good, with most sections providing a smooth and reliable grip. The road features a moderate level of curviness, with gently winding sections interspersed with straighter stretches. Riders will encounter a mix of one-lane and two-lane segments, with two-lane sections making up the majority (about 54%). The width of the road is generally wide (about 69%), allowing for comfortable passing and maneuvering, while middle-width sections account for a smaller proportion. The elevation ranges from 189 m (620 ft) at its lowest point to 781 m (2,562 ft) at its highest, offering some mild elevation changes without steep gradients. The maximum speed limit along the route is 50 km/h (31 mph), reflecting the road's passage through both rural and inhabited areas.

Along its course, the road passes through several settlements, including Borovak pri Podkumu, Zagrad, Titova ulica, Jagnjenica, Njivice, and Stari Dvor. The proximity to the towns of Radeče and Litija provides access to essential services such as fuel, food, and accommodation. A notable feature of the route is its passage near a viewpoint, offering riders an opportunity to pause and appreciate the surrounding landscape. While the viewpoint is not widely documented in major travel guides, the region's natural scenery and rural charm are evident throughout the ride.

There are currently no known restrictions or closures specific to motorcycles on the 665 Velika Reka – Radeče road. The route remains open year-round, with no regular seasonal closures reported. However, riders should be aware that winter conditions, such as snow or ice, may affect accessibility and safety, particularly at higher elevations. There are no tolls or entrance fees required to use this road. For the most up-to-date information on road tolls and regulations in Slovenia, refer to the official DARS website. Toll conditions may change in the future, so it is advisable to check before planning your ride.

When planning a ride along the 665 Velika Reka – Radeče road, consider the moderate length and the availability of services in nearby towns. The road's combination of gently curved sections and high-quality asphalt makes it suitable for a range of motorcycle types, from touring bikes to sportier models. Riders are encouraged to check local weather conditions, especially during the winter months, and to ensure their motorcycles are equipped for variable road widths and occasional narrow segments. For further information about the towns along the route, consult resources such as Tripadvisor for Radeče and Lonely Planet for Litija. An interactive map of the route is available below to assist with navigation and trip planning.