a guy i know just welded some tabs to the front frame rails and used small spacers to run a trx 450r front bumper. like westtex said new bumpers will not bolt on bc the 250 uses round clamps that wrap around the frame as opposed to threaded bolt holes. i remember when the mini truck scene was popular and people would swap bumpers from different makes they would take their stock bumper mounting set up and either bolt it or weld it to a different bumper and shazam! maybe your could do something similar to that...