Some of you (you know who you are ;-) have requested photos of this funny frame brace on my early CB750 frame.
http://denizen224.home.comcast.net/images/standard.jpg Brace typical of my other CB750s. It has about a 3" rise and is rather squared off. http://denizen224.home.comcast.net/images/unusual.jpg Brace in question. It has only about a 1.5" rise. The crossmember is formed from a single piece, not a "regular" one that's been cut and flattened out. Its welds are comparable to the rest on the frame. The plate on the top with the crosstube at the back doesn't have such good welds (looks more like a later kludge) but isn't ~that~ much worse than some others I see on the frame. Original? Kludge? Half-'n-half? Any thoughts are welcomed. Mr. Bill sohc/4 #663 vjmc #1586 ----- Original Message ----- From: "Mr. Bill" <[EMAIL PROTECTED]> To: "Cammers List" <[EMAIL PROTECTED]>; "VJMC List" <[EMAIL PROTECTED]> Sent: Saturday, March 06, 2004 8:40 AM Subject: CR750 frame details > Greetings. > > Is anybody here familiar with the details of the EARLY Honda CR750? > > My aforementioned (engine hardware) CB750 came to me from a breaker as > nothing more than a frame and original motor. BTW, it just happens to be a > '69 sandcast (frame #5198, engine #5090 :-). I know little of its history. > > In setting about work on it, I've noted a couple minor differences in the > frame. Most notable is the rear fender brace going between the rear legs of > the frame. > > On an Oct. '69 CB750 diecast and an earlier sandcast that I also own, this > crosspiece goes almost straight up then quickly across between with almost a > 90 degree bend. On this bike, the brace is almost straight across with > perhaps a 45 degree elevation starting right at the frame member before > flattening out. There's a flat plate attached to this sticking back with a > round tube on it's trailing top edge for a crossbolt. This looks like > something I could envision for the small tailpiece on a CR750. > > There's also an extra tab on the right downtube, about even with the valve > tappet adjust covers. It looks to be placed and oriented about right for a > steering damper. > > Both of these have very nice welds, and in the case of the rear fender brace > I see no evidence that there was ever an "original" brace there. But it's > possible, of course. The frame does have some "street" features like the > horn bracket. The steering head is stamped CB750- not CR750-. > > Does this sound like possibly a factory CR750 frame, or more likely later > mods by an owner? My plan was to restore the bike to street original, but > before I go "correcting" the frame I want to make sure I don't have > something REALLY special here. > > TIA, > Mr. Bill > sohc/4 #663 > vjmc #1586 >
