We use Emig 20mm offset clamps on a 2002 CRF450 for increased trail with excellent results including improved tracking and steering with no instability issues, . This results in about 113mm of trail vs 109 stock. Current YZ's claim about 117mm of trail with a similar head angle. Do you know of anyone who uses and likes additional offset and trail on current CR250's? The stock 02/03 Cr250 has only about 106mm to107mm of trail with the standard 24mm clamps. The fork rake of the CR250 is about .5 degee steeper than the CR 450 or YZ and this along with weight distribution may result in problems with additional offset on the CR250.