Before the CT was developed, another underbone model known as Modenas Kristar was produced in 2004 but the production ended two years later due to lack of appeal.

Both models have a 5.3-liter fuel tank each, which is claimed by Modenas as the largest among underbone motorcycles at that time, before being surpassed by the 2012 Honda Future 125.

[4] In 2010, Modenas developed an electric motorcycle model through a partnership with Universiti Sains Malaysia.

The Kriss 125i uses the larger 120 cc engine mated together with the fuel injection system with a lambda sensor supplied by Synerject.

[7] The fuel-injected variant uses the same 120 cc engine being derived from the Kriss 120 and Ace 115 but with slightly lower power output.