pic: 18 Tooth #25 Sprockets Inside VersaChassis

[AlecMataloni]

Originally Posted by billbo911

With the sprocket and chain installed, how much clearance do you have between the chain and inner wall of the tube?

SolidWorks tells me it'd be around .055" clearance vertically without chain installed. I don't know off the top of my head how much the chain would extend past the teeth. Either way, it's a cozy fit, but it "works" in CAD (granted, that's not a guarantee of success). I'll have the opportunity to test it using real parts sometime in the future, so i'll post results when I get the opportunity to mock it up.

[AdamHeard]

The 16T sprockets are plenty big for 4" wheels and give you a tad more clearance.

[AlecMataloni]

Originally Posted by AdamHeard

The 16T sprockets are plenty big for 4" wheels and give you a tad more clearance.

Really, now... I wasn't sure if 16T would be big enough.