CB350 steering damper

tt,
I dont think the 350 forks are that small, 33mm. I raced my 400f for years with 33mm tubes. My current 350 has 35mm forks off an XL350, but I doubt that fork flex caused a slapper. I stand by my statement that a properly set up 350 doesn't need much if any damper. I mostly have one on mine to make it WERA legal. IF you have a bad tank slapper putting a damper on it may just be masking a real problem. That being said, A damper doesn't really hurt anything and is good insurance for those situations where a problem is from something other than set-up such as getting run into by somebody or hitting a loose chunk of asphalt(Nelson Ledges), hitting a turtle(Nelson Ledges), or having your dual headlights break a mount at 2:00am and try and jerk the bars out of your hands(Nelson Ledges). I hate the Ledges!!
So, since I have successfully argued both sides of the discussion, I would get as much steering damper as you can afford that makes you comfortable on your bike. On my 350 I am as happy as I can be with the GSXR damper, but I spent big money on shocks and frame work in addition to steering head bearings, wheel bearings, and big stainless spokes.

Ken

AHRMA 412
Vintage racing - old guys on old bikes