The KLX250 remains in the lineup, so it seems almost redundant to have such a closely related bike in the family. But there are some big differences, starting with the inclusion of an ABS option for the 230 (in addition to a non-ABS). The ABS 230 prices at $4,899 which is $500 less than the standard KLX250. The 230 also weighs about 11 pounds less and has a slightly lower seat height (0.2 inch). These could be really attractive to newer riders, or riders who want to have a new bike but balk at a price tag over $5,000.
Source: MotorCyclistOnline.com