Originally Posted by Seisick
front bearing is 7x17x5 part 697
rear bearing is 12x21x5 part 6801
the ntn work ok for me, I replace both bearings every two gallons, just in case
well i've got hold of them after 2 months of searching
, put in the motor and they last the whole day of racing (inc. a 30 min. final)
after i dissammble and check for any free play...and all are still tight
