LuK Challenge Chrono
|Date||Late July - Early August|
|English name||LuK Challenge Chrono|
|Local name(s)||LuK Challenge Chrono (in German)|
|Competition||UCI Europe Tour|
|Type||Team Time Trial|
LuK Challenge Chrono was a road bicycle race held annually as a team time trial for pairs in Bühl, Germany. In 2005 and 2006, the race was organized as a 1.1 event on the UCI Europe Tour. After 2006, the sponsor, LuK, withdrew as part of Germany's general disengagement from cycling amidst a number of doping scandals, and the race did not take place again.