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Old 01-19-2013, 12:47 PM   #13988
Gnarly Adventurer
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Joined: Aug 2009
Location: Tallinn, Estonia
Oddometer: 337
About pistons

I did some more research on pistons.
OEM pistons with valve cutouts are not sold any more. They are superceded by simple flat top pistons without any recess or cutout.
I dug out the box of the 0.5mm oversize piston set I ordered 2 or 3 years ago for my SR42. The part number is 12100-31D00-050. And the same piston set is sold now by CMSNL for SR41, SR42 and SR43.

Conclusion - flat top piston without valve cutouts will work on all DR Bigs be it SR41, SR42 or SR43.

Thanks to BigBob on who led to the right tracks.

mait screwed with this post 01-19-2013 at 01:03 PM
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