Re: Teaser thread...
Posted by shinyribs on Nov 28, 2018; 3:52am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/CB1100F-The-Keeper-Build-tp4053992p4063814.html
I've been cracking on this. Got my buddy to bore the stock triples out to accept the F3 forks. Retains factory geometry and all the mounts. But 1100 trees are wider spaced, so urned up some new wheel spacers and the front end is basically done. Just need to shim out the calipers slightly for proper alignment.
Centering the rear wheel ended up being as simple as centering the swingarm. 0.245" spacer on each side of the pivot, but everything from there back is stock F3. Flipping the sprocket was enough to correct the chain run. Too easy!
Whipped up some tabs and started getting the suspension linkage angles all sorted. I had no hard info to run with. I just searched google for the best images I could find and sat there with my angle finder on the screen.
Reusing the centerstand crossmember for the dogbone attachment, but that crossmember is kind of attached the the main hoops in a cheesy way, so it will need reinforcing.
Wheel travel measurements matches stock F3 specs, so I musta got my angles and ratios purdy dang close!
Sat the bike on it's own feet to double check measurements. 7" ground clearance at the sump and 9" to the frame rails. One less degree of rake puts the bike to 900F steering angle specs. The interwebs swear the 900F steers quicker than the 1100, so why not shoot for that. Bike looks very happy on it's sidestand, so I'm pleased to have used modern suspension on a CB and NOT ended up with a belly-dragger!. Just takes some research and using the right parts. I hate low bikes.
Content that frame geometry and ground clearance were good, and I wouldn't have to start over, she went back on the lift to sort out remounting the electrical bits.
Whipped up this very un-finished battery box/ electrics plate. Evenything clears the shock nicely and I can use a fullsize stock battery. All other bits fits nicely under the side cover. Nothing will need to be moved and the wiring harness will not need to be modified. I'm very happy about that!
Can see above that the inner fender was trimmed and put back around the mono shock. All the electrics tuck behind it nicely. The slightly longer wheelbase needed the rear of the mudguard trimmed and bit. I always thought they hung down too dang far anyway. This was just a rough cut. I'll finish it up smooth all the way to the base of the tag later.
Next on the list is to sort out a rear master cylinder and some luggage mounts. Then it's probably on to building exhaust. I do have a pretty nice set of stock 4-2 pipes off a 750. I'm wondering if the 1100 will breathe through them ok? I really liked how those pipes sounded and the ground clearance they offer over a 4-1.
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/CB1100F-The-Keeper-Build-tp4053992p4063814.html
I've been cracking on this. Got my buddy to bore the stock triples out to accept the F3 forks. Retains factory geometry and all the mounts. But 1100 trees are wider spaced, so urned up some new wheel spacers and the front end is basically done. Just need to shim out the calipers slightly for proper alignment.
Centering the rear wheel ended up being as simple as centering the swingarm. 0.245" spacer on each side of the pivot, but everything from there back is stock F3. Flipping the sprocket was enough to correct the chain run. Too easy!
Whipped up some tabs and started getting the suspension linkage angles all sorted. I had no hard info to run with. I just searched google for the best images I could find and sat there with my angle finder on the screen.
Reusing the centerstand crossmember for the dogbone attachment, but that crossmember is kind of attached the the main hoops in a cheesy way, so it will need reinforcing.
Wheel travel measurements matches stock F3 specs, so I musta got my angles and ratios purdy dang close!
Sat the bike on it's own feet to double check measurements. 7" ground clearance at the sump and 9" to the frame rails. One less degree of rake puts the bike to 900F steering angle specs. The interwebs swear the 900F steers quicker than the 1100, so why not shoot for that. Bike looks very happy on it's sidestand, so I'm pleased to have used modern suspension on a CB and NOT ended up with a belly-dragger!. Just takes some research and using the right parts. I hate low bikes.
Content that frame geometry and ground clearance were good, and I wouldn't have to start over, she went back on the lift to sort out remounting the electrical bits.
Whipped up this very un-finished battery box/ electrics plate. Evenything clears the shock nicely and I can use a fullsize stock battery. All other bits fits nicely under the side cover. Nothing will need to be moved and the wiring harness will not need to be modified. I'm very happy about that!
Can see above that the inner fender was trimmed and put back around the mono shock. All the electrics tuck behind it nicely. The slightly longer wheelbase needed the rear of the mudguard trimmed and bit. I always thought they hung down too dang far anyway. This was just a rough cut. I'll finish it up smooth all the way to the base of the tag later.
Next on the list is to sort out a rear master cylinder and some luggage mounts. Then it's probably on to building exhaust. I do have a pretty nice set of stock 4-2 pipes off a 750. I'm wondering if the 1100 will breathe through them ok? I really liked how those pipes sounded and the ground clearance they offer over a 4-1.
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