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Author Topic: CB750 make necessary faster. Almost done!  (Read 21169 times)

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Offline Blackandsilver

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CB750 Redeux - Custom Frame Mods
« Reply #75 on: December 15, 2012, 01:25:03 PM »
Finished.


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Offline Blackandsilver

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CB750 Redeux - Custom Frame Mods
« Reply #76 on: December 15, 2012, 01:26:34 PM »
Look at this #$%*ing thing!!!


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Offline Bluegreen

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Re: CB750 Redeux - Custom Frame Mods
« Reply #77 on: December 15, 2012, 02:22:00 PM »
Well look who's on the internet.
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Offline Blackandsilver

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CB750 Redeux - Custom Frame Mods
« Reply #78 on: December 17, 2012, 09:00:35 PM »
Brake side foot controls. Welded 1/2" rod to the frame, then fabbed the pedal out of 3/8" and 1/4" plate. Cut the grippies with a Zip disk. Then notched it and welded a bracket for the cable. Zip tied the brake light switch.
That's about that.
The pedal return springs are at the back where the cable mounts to the brake drum. Pretty simple I think, and works well. This thing is 2 air filters and good tyres away from being road ready!

I think...


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Offline Blackandsilver

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CB750 Redeux - Custom Frame Mods
« Reply #79 on: December 20, 2012, 12:48:07 PM »
Anyone have any reccomendations on tire sizes for dual 18" rims? There both 2.5 inches I think. Maybe 2.75.


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Offline Blackandsilver

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CB750 Redeux - Custom Frame Mods
« Reply #80 on: December 26, 2012, 01:33:26 PM »
Has anyone ever done this, and in their opinion improved handling?
Or weight?
Or know what kind of shock to use?
It sure looks cool.


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Offline SOHC4 Cafe Racer Fan

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Re: CB750 make necessary faster. Almost done!
« Reply #81 on: December 26, 2012, 02:15:03 PM »
More than a few members have installed a monoshock suspension, along with an updated swingarm of one variety or another.  An aluminum box style swingarm combined with a monoshock should save you a considerable chunk of weight.  A boxed or braced swingarm will also improve handling.  Getting the geometry right so you can achieve the goal of improved handling is way beyond me.
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1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

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1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline Retro Rocket

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Re: CB750 make necessary faster. Almost done!
« Reply #82 on: December 26, 2012, 03:41:31 PM »
Quote
Getting the geometry right so you can achieve the goal of improved handling is way beyond me.

Thats where most of the mono shock conversions i have seen on this site fall down, far to much length in the monoshock swingarm to help handling, you need to remain close to stock geometry to have a good handling bike...
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750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline Bluegreen

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Re: CB750 make necessary faster. Almost done!
« Reply #83 on: December 26, 2012, 05:13:58 PM »
Quote from: Retro Rocket on December 26, 2012, 03:41:31 PM
Quote
Getting the geometry right so you can achieve the goal of improved handling is way beyond me.

Thats where most of the mono shock conversions i have seen on this site fall down, far to much length in the monoshock swingarm to help handling, you need to remain close to stock geometry to have a good handling bike...

Have you seen anybody get close? I'm very interested in this, monoshocking  a 500 just might be my next project. But I'm not interested in doing it for looks, I'd like to see an improvement in handling.
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Offline Retro Rocket

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Re: CB750 make necessary faster. Almost done!
« Reply #84 on: December 27, 2012, 02:21:43 PM »
Quote from: Bluegreen on December 26, 2012, 05:13:58 PM
Quote from: Retro Rocket on December 26, 2012, 03:41:31 PM
Quote
Getting the geometry right so you can achieve the goal of improved handling is way beyond me.

Thats where most of the mono shock conversions i have seen on this site fall down, far to much length in the monoshock swingarm to help handling, you need to remain close to stock geometry to have a good handling bike...

Have you seen anybody get close? I'm very interested in this, monoshocking  a 500 just might be my next project. But I'm not interested in doing it for looks, I'd like to see an improvement in handling.

Yes, i'll have to go digging  but they were 500-550's, they don't have an oil tank so fitting a monoshock onto a swingarm brace like the old 1970's TZ Yamaha's works well, it can be done with no change to the wheelbase at all....  I am a 750 guy but i think forum member Godfrey has a nice example...
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750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.
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