Twn Boss Bearings for crankcase Home › Forums › German Motorcycles › TWN Triumph › Twn Boss Bearings for crankcase Viewing 1 post (of 1 total) Author Posts 2009-03-08 at 11:38 pm #12053 FalkMember I wonder if i can use these bearings for the crank instead of the traditional m25 bearings with brass cage that feinstrahlen sells. The bearings i have are called m25tvp and have the same measurements as the traditional m25 bearing ( 25*62*17) but have smaller balls and cage made of composite material. The inner and outer ring is thicker and thats why the balls are smaller. The seller said it is a magneto bearing. So i wonder if i can use these modern ones? Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.