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Mark Cook

Jan 31, 2024 - 4:55PM

M21 Piston Kit

I now have in stock some M21 82mm Forged Piston Kits,
Modern rings for better oil consumption.

Mark

email (option): pes.sales@btconnect.com

Scott Larke

Feb 1, 2024 - 12:35PM

Re: M21 Piston Kit

Hi Mark,
Will you be doing them oversize??
Br
Scott

email (option): LarkesrATgeemail.com

Mark Cook

Feb 1, 2024 - 1:27PM

Re: M21 Piston Kit

It depends on demand Scott.
What size are you looking for?

https://pesltd.uk/?product=66-1215

Mark

email (option): pes.sales@btconnect.com

Scott Larke

Feb 1, 2024 - 2:25PM

Re: M21 Piston Kit

Plus 20 thou

email (option): LarkesrATgeemail.com

jeremy atkinson

Feb 7, 2024 - 8:25PM

Re: M21 Piston Kit

I assumed the major factor in an M21's often prodigious oil consumption is barrel distortion due to the asymmetric barrel.

Ian Wright

Feb 7, 2024 - 9:33PM

Re: M21 Piston Kit

I wouldn't say oil consumption is overly high...I've done Normandy Tours and other events riding all the way from my home in Devon without having to 'top up' at all...The barrel isn't that subject to distortion either..After the '38 redesign when an air gap was introduced behind the tappet chamber cylinder wear is fairly even I've found...Ian

email (option): ian@wright52.plus.com