nsr 125 redundant oem crank bearings best aftermarket option

[Rory123]

Been looking online for a pair of genuine crank bearings for nsr 125 jc22 but the right side seems to be unavailable everywhere, so im looking at aftermarket now, what would be the best quality aftermarket bearings to go for, seen plenty of koyo sets for sale mabye skf the best option, if anyone could provide some insight or link to quality bearings that would be great. would these bearings be as good as oem: https://www.ebay.ie/itm/335873747149?_skw=Honda+NSR&itmmeta=01JTXST1VK42W7FFQB5YHNJBD4&hash=item4e33a2a8cd:g:UmoAAOSwERpms1a2&itmprp=enc%3AAQAKAAAA4MHg7L1Zz0LA5DYYmRTS30lfGRu0j63OwK1OF5N9voRubWOxQI4r9YQrwu0kuufmyQuYKd20HpHk3pXeKGwx7y%2Fq4FoeJGKW%2Bo18BCROt7YPBg8tskw%2BKdSSXsjhJQSWOa068xl48dTQjc%2BCJlc5mnxQlmoUTYNWvIMeznYGRIAFKj6n1n144YWPz3vvK04Pzpq0E4Bx1g7ALeEnCcwCelGc76gVwMisEaQtRrswv0NId1ASyKVOcOcQHOvevtjpjOiAP1HqU5b9eFizvuFVDDmSfCUJP%2FSCCixcBTgRSiyJ%7Ctkp%3ABFBM9p3ouddl
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womanizer

[Polarbear]

If they are correct size and spec (c3/4, z/zz ect) you cannot go wrong with SKF. TBH there aren't any major manufacturer of ball bearings that are crap. We went through thousands of different bearings on ships at sea and the criteria for long life wasn't the make but how they were fitted. or handled by the engineer.

Clean good grease or oil if open bearings. Don't hit the inner race when fitting into a housing. Basic engineering knowledge.

Honda won't make bearings anyway, they just rebrand someone elses, probably Koyo.
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Triumph Trophy Launch Edition

[stinkwheel]

SKF is a premium brand.

Save you some money though.
https://simplybearings.co.uk/shop/p5845/SKF-6305TN9C4-Open-Deep-Groove-Ball-Bearing-with-Glass-Fibre-Reinforced-Polyamide-Cage-25x62x17mm/product_info.html

Same place also does top-notch viton seals.

They'd be cheaper still direct from a bearing factor.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Ste]

[Rory123]

Thanks for the replies, these bearings are c4 bearings i think the originals are c3, am I right in assuming this and if so am I not better off sticking with c3 or will it make any odds
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womanizer

[stinkwheel]

[Ste]

You're best off sticking with the original spec.

Looking at the radial internal clearance specifications for bearings with an ID of 24mm to 30mm, there's actually some overlap between C3 and C4.
C3 bearings: 0.013mm to 0.028mm
C4 bearings: 0.023mm to 0.041mm

Regardless of that, just use C3.