If you don't like to hand-ream, this is the part for you. I test-fitted this bearing into my conn rod after the bushing was spun. Went on beautiful. I didn't run it yet, so I can't comment on function yet.
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Flawless
May 29, 2014
taco eater :
Timmy from TX United States
Perfect for Yamaha QT50 YT60 SG50 MJ50 malossi 70cc kit.
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uh no
January 18, 2013
taco eater :
Ryan Nash from Columbia, MO United States
Does not work on my 10pin malossi vespa crank. No where near close to fitting.
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A3 stocker
November 30, 2011
taco eater :
Aaron Fowler from Richmond, VA United States
went in but was kinda tight, did some light sanding with a very fine grain sand paper. works great now
No reaming 
uh no