Drivetrain Sprocket

[Lil' Lavery]

Originally Posted by Cothron Theiss

Do you mean on the same side of the tube as the wheels, or just not inside the tube?

The same side of the tube as the wheels.

Originally Posted by asid61

If one wanted to run a tradition WCD setup with 22t #35 sprockets, then they would have to cut into the bellypan to allow chain clearance, which reduces the strength of the pan. Otherwise, they could cut only small slots for the sprockets and assembly the chain around the bellypan, which is a pain.

I understand what you and Chris are saying. I'm just saying that if a team had some legitimate need to use sprockets with a larger diameter than the width of the tubes, the chain can be placed on the outboard sides of the drive rails (between the drive rails and the wheels). You sacrifice some of the spatial economy of a WCD (particularly those with gearboxes designed for interior chain runs), but it would facilitate the use of larger sprockets/pulleys.

Originally Posted by asid61

12t #35 sounds pretty good to me. We horribly screwed up a 2013 offseason WCD, but because of 12t #35 sprockets it still drove just fine.

1712 used 12t #35 chain in both 2015 and 2016 and never had a single drive chain issue.