| Schleizer Dreieck | |
| Location: | Schleiz, Thuringia, Germany |
| Time: | CET (UTC+1) CEST (DST) |
| Capacity: | 10,000 |
| Events: | Current: International Road Racing Championship (2010–2012, 2017, 2023–present) IDM Superbike Championship (2004–2019, 2021–present) Former: Sidecar World Championship (2004–2007, 2009–2013) Cup of Peace and Friendship (1970–1990) |
| Layout1: | Full Circuit (July 2004–present) |
| Length Km: | 3.805 |
| Length Mi: | 2.625 |
| Turns: | 14 |
| Record Time: | 1:23.849 |
| Record Driver: |  Illia Mykhalchyk |
| Record Car: | BMW M1000RR |
| Record Year: | 2024 |
| Record Class: | SBK |
| Layout2: | Modified Circuit (August 1988–June 2004) |
| Length Km2: | 6.805 |
| Length Mi2: | 4.229 |
| Turns2: | 22 |
| Layout3: | Original Circuit (June 1923–May 1988) |
| Length Km3: | 7.631 |
| Length Mi3: | 4.743 |
| Turns3: | 22 |
| Record Time3: | 2:59.200 |
| Record Driver3: |  Chris Williams |
| Record Car3: | Brabham BT21 |
| Record Year3: | 1967 |
| Record Class3: | F3 |
Schleizer Dreieck is a motorsports circuit located in Schleiz, Thuringia, Germany.[1] It is the oldest racing track in Germany, and it was opened on 10 June 1923.[2]
The circuit's original length was, it was firstly shortened to between May and August 1988, then to in July 2004. It has an average width of and elevation changes of .[3]
The Schleizer Dreieck is mainly used for motorcycle racing events. It mainly hosts events for IDM Superbike Championship, but it also hosted international events, such as Sidecar World Championship and Cup of Peace and Friendship.
As of July 2024, the fastest official race lap records at the Schleizer Dreieck are listed as:
| Category | Time | Driver | Vehicle | Event |
|---|---|---|---|---|
| Full Circuit: 3.805 km (2004–present) | ||||
| 1:23.849[4] | 2024 Schleiz IDM Superbike round | |||
| 1:26.815[5] | 2024 Schleiz IDM Supersport round | |||
| 1:36.179[6] | 2023 Schleiz IDM Supersport 300 round | |||
| Original Circuit: 7.631 km (June 1923–May 1988) | ||||
| 2:59.200[7] | 1967 Schleizer Dreieckrennen | |||
| 3:11.400[8] | 1963 Schleizer Dreieckrennen | |||