excallibur101
Pro
innesotas Nick Keller would contest your claim,clocking over 99000 miles on his Yamaha 4 stroke sled .Trued,tried ,tested,and Proven.Does it really matter? Truth is, the chassis that these motors sit it typically fall apart long before the motors. I sold my apex with 13,000 miles and I had loose tunnel rivets, a whole new exhaust cause the original fell apart, and new floor board radiators cause the originals cracked.
My Dad lost compression in 2 cylinders on his 2007 Attak Gt at 17,000 miles. He bought it new and it had nothing but the best trails and maintenance.