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MCW

Somebody's talking crap here & it ain't the tree!
Joined
Sep 10, 2008
Messages
13,351
Location
Riverland, South Australia
He did test with all rim sprockets on all sizes. No spurs. 7 and 8 pin on all the chain sizes. The fastest of the lot was 3/8 picco 8 pin

Cool. The 8 tooth picco rims are hard to find. In harder wood my stock 241 is faster with a 7 tooth .325" rim than an 8 tooth but in picco it would pull it easily.
 
KG441c

KG441c

Keith
Joined
Nov 12, 2013
Messages
4,952
Location
Provencal, La.
Ya I can tell the 6 tooth spur that comes on it is holding it back so I ordereded the rim kit and a 7 and 8 pin sprockets in picco. Ill mostly be cutting clean green so I think the picco will work good. Im gonna square file some to see of the shoulder support on the square vs the fine point on the round will stay sharper?
.
 

MCW

Somebody's talking crap here & it ain't the tree!
Joined
Sep 10, 2008
Messages
13,351
Location
Riverland, South Australia
Ya I can tell the 6 tooth spur that comes on it is holding it back so I ordereded the rim kit and a 7 and 8 pin sprockets in picco. Ill mostly be cutting clean green so I think the picco will work good. Im gonna square file some to see of the shoulder support on the square vs the fine point on the round will stay sharper?
.

I've heard a few people say that square stays sharper for longer than round filed chisel although I've found the opposite.
 
KG441c

KG441c

Keith
Joined
Nov 12, 2013
Messages
4,952
Location
Provencal, La.
The picco filed at 35 makes a small fine point that seems to damage pretty easy. Im thinkin the square with the extra shoulder support may stay sharper on the picco but on larger chain round may stay sharper longer?
 
AKDoug

AKDoug

Pro Staff
Joined
Mar 13, 2009
Messages
2,474
Location
Alaska
I'm running the 7t .325 sprocket off of a 251. I don't know if an 8T would go very well with that size chain in my wood. In reality it really doesn't matter to me. I won't be changing anytime soon. Cutting off small tops and odd limbs before it goes into the processor is all this saw will see this year.
 

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