Join Date: Jun 2008
Location: DEERFIELD, VA (the middle of NOWHERE)
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From what I've seen on other Honda's (VFR), the cam gears are split, with a clockspring inside the wider (bearing) portion of the gear. This setup reduces gear backlash and noise. The only benefit as stated would be to reduce mass in the cam drive, a minimal benefit if any.
If you want to hear noise, listen to my CBX when cold. The cam sections (4) are keyed to the chain sprockets in the center, with oldham couplers. These couplers are basically a key-in-slot arrangement, which loosen with the contraction of a cool engine. Couple that up with 24 large shim-in-buckets singing the cold engine song, and you get the picture, Diesel orchestra. But it does sound cool. I love the cam whine of the RC, not quite as noisy as my 98 VFR 800 though.