I'll correct myself on what the plans call for...it's a 3.5" tailwheel. Although most folks are using 4", there's a wide variety on KRs.
Before you buy a new 4" tailwheel, see http://www.n56ml.com/kgear.html , especially the part about grease in the bearings. If you want grease in the bearings, be very careful where you order it from! Otherwise you'll wonder why the bearings are completely shot after a few months... Mark Langford ML at N56ML.com http://www.n56ml.com
