KR1-S Swingarm Bearing Tip

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Mohawk
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KR1-S Swingarm Bearing Tip

Post by Mohawk » 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.
Half a KR-1S, well the front anyway :)

Gerrit
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Re: KR1-S Swingarm Bearing Tip

Post by Gerrit » Fri Feb 24, 2017 11:17 pm

Well spotted. I'll certainly be fitting second bearings on each side when assembling my project. It may be overkill but it won't do any harm.
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bsa70
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Re: KR1-S Swingarm Bearing Tip

Post by bsa70 » Tue Jun 29, 2021 10:09 pm

Hi I just shimmer mine and no play.

bsa70
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Re: KR1-S Swingarm Bearing Tip

Post by bsa70 » Tue Jun 29, 2021 10:11 pm

i mean just shimmer both ends with water thin stainless shims. :lol:

headcoats
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Re: KR1-S Swingarm Bearing Tip

Post by headcoats » Mon Jul 19, 2021 7:41 pm

Can you still get the bearings or do you have to use an alternative from factory ?
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KR-1R
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Re: KR1-S Swingarm Bearing Tip

Post by KR-1R » Sat Jul 24, 2021 8:17 am

Bearings still available

Probably wont run out

Image

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