Get out your crayons, pt II !
- Thread starter BigSherm
- Start date
BigSherm
Been Around the Block
I like the idea a of a monoshock, and I think it would potentially handle the best that way, but it would take away from one of the things I like about the old SOHC 750; I like the looks of high quality dual shocks on a bike that it works well.
As for the eletronics, I'm considering using CycleXchange's new charging system that lets you go batteryless, and I'm planning to get rid of all the unnecessary electrics that normally sit between the sidecovers. My idea is to see if any of the parts that would normally be in a Santee box will fit in the space left by the starter. We'll see if that's feasable.
And the oil tank - I've been in touch with John Williams from the Tank Shop about a custom alloy fuel with an oil tank concealed underneath, but he dosn't currently have an SOHC frame to plan the exit points of the oil lines. I think he'll have a frame soon and we'll be in business.
Even though I may not go monoshock, I still want to remove all possble components in the sidecover area. If the Alloy tank/oil tank combo doesn't work out, I'll use the cleanest looking chopper oil tank I can find.
I have a GS450 tank at home to use, as well as swingarms from a ZRX1200 and FZ1. These are the easiest designs I could find to make the same length as the stock CB750 by shortening the front end of the swingarm. I plan to use the best shocks I can get.
Then its 5.5 x 18 rear and 3.5 x 18 front rims on the stock hubs with modern sportbike rubber, CBR1000rr forks and radial brakes in CBR954rr triples, a custom seat, BCR gauge-in-headlight shell, Tarozzi/Tomaselli clipons, custom rearsets, and a custom exhaust.
Sherm
As for the eletronics, I'm considering using CycleXchange's new charging system that lets you go batteryless, and I'm planning to get rid of all the unnecessary electrics that normally sit between the sidecovers. My idea is to see if any of the parts that would normally be in a Santee box will fit in the space left by the starter. We'll see if that's feasable.
And the oil tank - I've been in touch with John Williams from the Tank Shop about a custom alloy fuel with an oil tank concealed underneath, but he dosn't currently have an SOHC frame to plan the exit points of the oil lines. I think he'll have a frame soon and we'll be in business.
Even though I may not go monoshock, I still want to remove all possble components in the sidecover area. If the Alloy tank/oil tank combo doesn't work out, I'll use the cleanest looking chopper oil tank I can find.
I have a GS450 tank at home to use, as well as swingarms from a ZRX1200 and FZ1. These are the easiest designs I could find to make the same length as the stock CB750 by shortening the front end of the swingarm. I plan to use the best shocks I can get.
Then its 5.5 x 18 rear and 3.5 x 18 front rims on the stock hubs with modern sportbike rubber, CBR1000rr forks and radial brakes in CBR954rr triples, a custom seat, BCR gauge-in-headlight shell, Tarozzi/Tomaselli clipons, custom rearsets, and a custom exhaust.
Sherm
BigSherm
Been Around the Block
Getting close to the final version, I think. Here's the latest:
CR750 alloy fuel tank, oil tank, and exhaust (from member Cosmo, thanks!), shortened FZ1 swingarm with Hagon shocks (just can't do the Ohlins), and the CBR100rr front end setup. The seat will be handmade by me in aluminum. If you look at the cowl, it is only a 1-axis bend out of sheet aluminum.
The plan for two-up riding is a flat seat with a frame hoop that plugs into the frame rails, to replace the CR seat when needed.
Still gotta figure out removable passenger pegs/brackets? Tied into muffler brackets?
I ordered the 5.5 x 18 and 3.5 x 18 silver Excel rims and stainless spokes from Buchanan's the other day.
Stil need clipons and rearsets.
Sherm
CR750 alloy fuel tank, oil tank, and exhaust (from member Cosmo, thanks!), shortened FZ1 swingarm with Hagon shocks (just can't do the Ohlins), and the CBR100rr front end setup. The seat will be handmade by me in aluminum. If you look at the cowl, it is only a 1-axis bend out of sheet aluminum.
The plan for two-up riding is a flat seat with a frame hoop that plugs into the frame rails, to replace the CR seat when needed.
Still gotta figure out removable passenger pegs/brackets? Tied into muffler brackets?
I ordered the 5.5 x 18 and 3.5 x 18 silver Excel rims and stainless spokes from Buchanan's the other day.
Stil need clipons and rearsets.
Sherm
BigSherm
Been Around the Block
Aminemed-
It's been a while since I built that bike! I'll try to remember accurately what I did for that fork swap.
I was lucky to find a modified (lengthened) CB750 steering stem that another guy had made for his similar front end swap.
If you were to do it yourself, you'd need two CB750 steering stems, cut and welded together to make one longer stem, because the modern CBR triple clamps are thicker.
I used CBR954RR triple clamps, CBR1000RR forks, the CB750 hub laced to a custom alloy rim.
There are more details here, in a build thread over on SOHC4.net:
http://forums.sohc4.net/index.php?topic=60806.0
I hope that helps, let me know if I can help you more!
-Scott
It's been a while since I built that bike! I'll try to remember accurately what I did for that fork swap.
I was lucky to find a modified (lengthened) CB750 steering stem that another guy had made for his similar front end swap.
If you were to do it yourself, you'd need two CB750 steering stems, cut and welded together to make one longer stem, because the modern CBR triple clamps are thicker.
I used CBR954RR triple clamps, CBR1000RR forks, the CB750 hub laced to a custom alloy rim.
There are more details here, in a build thread over on SOHC4.net:
http://forums.sohc4.net/index.php?topic=60806.0
I hope that helps, let me know if I can help you more!
-Scott
Hi bigsherm, thank you for the reply.
There is a actually some guys that i've found on the internet selling parts for fork conversion: GSX and CBR to CB 750. That includes the bearings and stem (but it's quite expensive, around 200$ with shipping).
My goal is really to provide more handling to my CB 750 and essentially reduce weight by swapping the entire front end. Am I right or am i completely wrong on this ? my guess is that a modern front end will be much less heavier than my stock CB 750 front end. What do you think ? i can also keep my current fork and only change the complete wheel with its stock brakes etc..
thanks for your help
There is a actually some guys that i've found on the internet selling parts for fork conversion: GSX and CBR to CB 750. That includes the bearings and stem (but it's quite expensive, around 200$ with shipping).
My goal is really to provide more handling to my CB 750 and essentially reduce weight by swapping the entire front end. Am I right or am i completely wrong on this ? my guess is that a modern front end will be much less heavier than my stock CB 750 front end. What do you think ? i can also keep my current fork and only change the complete wheel with its stock brakes etc..
thanks for your help
