KR1-S Swingarm Bearing Tip
Posted: Tue Dec 27, 2016 9:42 pm
Hi All,
This may be of value to some of you, if you find the swingarm needle bearings wear out or worn out & need changing.
I fitted a KR1-S swingarm to my ZZR250 & as part of the refurbishmant the needle bearing had to be replaced. When I stripped out the old ones I noticed the recess was much deeper than the bearing cage & as per some others a test fit of the arm showed a bit of end float. Careful measurement showed that I could fit 2 needle bearings per side, plus the end caps & I then had practically zero end float !
This doubles the bearing area for practically zero increase in friction, so should last a lot longer. my bike is about 15Kg heavier than the KR1-S & I'm no lightweight, so this should help. I hope this info is of some use.
As always YMMV.
This may be of value to some of you, if you find the swingarm needle bearings wear out or worn out & need changing.
I fitted a KR1-S swingarm to my ZZR250 & as part of the refurbishmant the needle bearing had to be replaced. When I stripped out the old ones I noticed the recess was much deeper than the bearing cage & as per some others a test fit of the arm showed a bit of end float. Careful measurement showed that I could fit 2 needle bearings per side, plus the end caps & I then had practically zero end float !
This doubles the bearing area for practically zero increase in friction, so should last a lot longer. my bike is about 15Kg heavier than the KR1-S & I'm no lightweight, so this should help. I hope this info is of some use.
As always YMMV.