Author Topic: CB750 drag cafe build  (Read 34591 times)

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Offline lucky

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Nice bike.
But you left out the two most important parts of this story.
How many degrees of rake?
What is the outside diameter of the 21 inch wheels WITH the tire?


« Last Edit: February 08, 2012, 08:22:04 am by lucky »

Offline the technological J

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and  the length of the fork tubes
Edit: totally wicked im getting a chubby looking at it..... keep up on the posts
 not sure if i missed it but what are you thinking for the tank?
 i think it looks great as is
« Last Edit: February 06, 2012, 05:41:16 pm by the technological J »
70 KO...sold to fund the ST http://forums.sohc4.net/index.php?topic=88800.0(Alpha)
74 Kaw 250 Enduro http://forums.sohc4.net/index.php?topic=124278.0
K4 added to collection! http://forums.sohc4.net/index.php?topic=104784.0
78 750K... http://forums.sohc4.net/index.php?topic=60257.0 (Omega)sold to fund the K4
94 ST1100..Gone
72 750 K2 Stay tuned!

Offline bluesmoke69

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Re: CB750 21 inch front and rear wheels + rake pics
« Reply #27 on: February 06, 2012, 06:42:52 pm »
Great looking start, love the wheels.

Offline Vbled1

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Re: CB750 21 inch front and rear wheels + rake pics
« Reply #28 on: February 06, 2012, 07:10:53 pm »
I dig it.   You have any photos of the stretch and rake ?      How much room is there in the rear swingarm ?
Great stance
As far as room in the swing arm its pretty spacious. Check out the pics.


 Rake pics i will get,  I included pic's of what i based the rake off of, my best guess was between a 35-38 degree rake. In reality this was about 1-2 inches of movement. Both bikes were somewhat inspirations for the build. The harley form WrenchMonkees ad the CB is from Garage Company.

 


Nice bike.
But you left out the two MOSt important parts of this story.
How many degrees of rake?
What is the outside diameter of the 21 inch wheels WITH the tire?



Thanks, Yea sorry, i planned on the a making this a more proper build thread soon, more info and pics. As i mentioned just above the rake is about 38 degrees. I had panned on a 35, but i went a tad more aggressive on it since i knew i would be lowering it. And the outside diameter of the wheels with tires is about 27 1/2 inches.


and  the length of the fork tubes
Edit: totally wicked im getting a chubby looking at it..... keep up on the posts
 not sure if i missed it but what are you thinking for the tank?
 i think it looks great as is
Thanks Techno, forks are stock length. The upper fork tube on one was pretty pitted so i got a clean used one off of a 78. This ended up being a problem. After polishing the fork bottom i realized the bottom (sorry for lack of technical terms) was 1 inch longer than my 75. I then took it apart and used the upper fork tube from the 78 in the 75's lower part. Polished that and everything else worked out well with the swap. Personally i like the fork tubes sticking through the top triple clamp to some extent. I may in the future cut the tubes but for now its fine.


As for the tank, i dig the stock tank too. I want the bike to stand out but still pay homage to its roots. I may get knee cutouts in it when i get the seat. A local guy around here makes some pretty nice stuff. Kott Motorcycles is the name. I havent dealt with him yet but i like his work.http://kottmotorcycles.com/Kott_Motorcycles/Home.html

« Last Edit: February 06, 2012, 07:21:15 pm by Vbled1 »

Offline Vbled1

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Re: CB750 21 inch front and rear wheels + rake project
« Reply #29 on: February 07, 2012, 05:15:18 pm »
Got loaded gun rear sets from Dime City, ill let you guys know how they work out, polished up pretty quick



Also got new brake line from slingshot cycles for this weekend. Waiting on the rest from motion pro. Went with a black translucent color.

Offline the technological J

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Re: CB750 21 inch front and rear wheels + rake project
« Reply #30 on: February 07, 2012, 06:36:25 pm »
so im just making sure i got this even tho you dropped it down some the 21 inch rims are whats making this bike appear nimble and makes up for the height loss(or some of it any way)
70 KO...sold to fund the ST http://forums.sohc4.net/index.php?topic=88800.0(Alpha)
74 Kaw 250 Enduro http://forums.sohc4.net/index.php?topic=124278.0
K4 added to collection! http://forums.sohc4.net/index.php?topic=104784.0
78 750K... http://forums.sohc4.net/index.php?topic=60257.0 (Omega)sold to fund the K4
94 ST1100..Gone
72 750 K2 Stay tuned!

Offline Vbled1

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Re: CB750 21 inch front and rear wheels + rake project
« Reply #31 on: February 07, 2012, 07:11:21 pm »
so im just making sure i got this even tho you dropped it down some the 21 inch rims are whats making this bike appear nimble and makes up for the height loss(or some of it any way)
Yea if you cant tell from the pics the bike is actually pretty low. when i first raked it with the lowered rear, i went to pull out of the driveway and my exhaust prevented me from leaving. I leaned it sideways and made it but just going down my street the exhaust was scraping here and there. I Got rid of the Mac 4 into 1 and went with straight pipes that hug the bottom of the bike. But yea the 21's helped a little. Added with the new exhaust which actually sits next to the bottom of the frame, not under ive ended up with some pretty good ground clearance and still low like i wanted. Im not sure what stock ground clearance is (to the frame, not exhaust) but i will measure mine and put it up fro reference.

Offline the technological J

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Re: CB750 21 inch front and rear wheels + rake project
« Reply #32 on: February 07, 2012, 08:08:13 pm »
if you dont mind post the steering nut level and the seat height
70 KO...sold to fund the ST http://forums.sohc4.net/index.php?topic=88800.0(Alpha)
74 Kaw 250 Enduro http://forums.sohc4.net/index.php?topic=124278.0
K4 added to collection! http://forums.sohc4.net/index.php?topic=104784.0
78 750K... http://forums.sohc4.net/index.php?topic=60257.0 (Omega)sold to fund the K4
94 ST1100..Gone
72 750 K2 Stay tuned!

Offline Vbled1

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Re: CB750 21 inch front and rear wheels + rake project
« Reply #33 on: February 07, 2012, 10:35:44 pm »
if you dont mind post the steering nut level and the seat height
Will do.

Offline Vbled1

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Re: CB750 21 inch front and rear wheels + rake project
« Reply #34 on: February 07, 2012, 11:42:01 pm »
To the top of the frame on seat section. Bottom of the frame underneath. To the center of the nut.
give or take a quarter inch. If you know what stock is or close to stock i'd like to know, thanks

« Last Edit: February 08, 2012, 05:29:50 pm by Vbled1 »

Offline 65Ch3v3LL3

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Re: CB750 21 inch front and rear wheels + rake project
« Reply #35 on: February 08, 2012, 01:04:27 am »
I'd like to see a close up of how you cut and reinforced the neck if you get a chance. Definitely like the look. good work.
1979 CB650
2011 Harley Road King
2008 Harley V-Rod VRSC DX
2012 Sierra Denali 2500HD
1965 Chevelle Malibu SS
1922 Ford T-Model

Offline wedoo2

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Re: CB750 21 inch front and rear wheels + rake project
« Reply #36 on: February 08, 2012, 05:34:30 am »
First of all I really like the looks of the rear end and am anxious to see the seat you choose.  That little fender looks good to me.  One thing stands out for me,  You have the high profile tires and exaggerated rake.  That does not seem to be the combination for a canyon carver.  The low rider look is cool and the inspiration bikes look great.
Some days the sun is too loud.

Offline lucky

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Re: CB750 21 inch front and rear wheels + rake pics
« Reply #37 on: February 08, 2012, 08:15:22 am »

Nice bike.
But you left out the two most important parts of this story.
How many degrees of rake?
What is the outside diameter of the 21 inch wheels WITH the tire?

(Shortened to save space.)

Thanks for all the information about the details of your project.
Very interesting project too, and great looking bike.
« Last Edit: February 08, 2012, 08:21:16 am by lucky »

Offline Vbled1

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Re: CB750 21 inch front and rear wheels + rake project
« Reply #38 on: February 08, 2012, 04:44:18 pm »
I'd like to see a close up of how you cut and reinforced the neck if you get a chance. Definitely like the look. good work.
Yea im trying to get the pics off my old phone, of the rake, before i painted it. If not i will just have to post ones that are cleaned up and painted. As far as reinforcing the bike i am confident with it holding through anything. The rake was done by starting a cut at the bottom just behind the neck. Cut up through about 85-90% of the frame. At this point a pipe is in the neck and i had made up a jig to keep the neck centered. pulled up on the pipe until i got the rake i wanted, since a section of frame is still attached you have to tug pretty hard on it and it stays in place. A pipe was welded in from the back of the neck to one point on the frame. I then boxed the inside of the frame where the cut was made, sides and bottom, essentially attaching the two pieces back together. Then i boxed the outside of the frame, sides and bottom over the cut. Sorry in my head i can visualize it not sure if that helped. I will get pics off my old phone or take new ones, but it will have been painted over.


Nice bike.
But you left out the two most important parts of this story.
How many degrees of rake?
What is the outside diameter of the 21 inch wheels WITH the tire?

(Shortened to save space.)

Thanks for all the information about the details of your project.
Very interesting project too, and great looking bike.
No Problem, thanks.

First of all I really like the looks of the rear end and am anxious to see the seat you choose.  That little fender looks good to me.  One thing stands out for me,  You have the high profile tires and exaggerated rake.  That does not seem to be the combination for a canyon carver.  The low rider look is cool and the inspiration bikes look great.
Thanks Wedoo, yea its not a canyon carver. I had another modern bike that was canyon friendly but just lost interest. I just like to cruise around town, run errands, etc.  I think i have more of a harley rider mentality but not quite as bad because i ride on weekdays, hah jk. Havent had a chance to actually see what it can do but im confident that it will be aggressive enough for what i need. And yea those inspiration bikes are clean.

Offline SF

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Re: CB750 21 inch front and rear wheels + rake project
« Reply #39 on: February 10, 2012, 06:47:36 am »
NICE JOB MAN! WM MAKE SOME NICE BIKES.
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Offline lucky

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Re: CB750 21 inch front and rear wheels + rake pics
« Reply #40 on: February 10, 2012, 09:27:03 am »
[quote  SHORTENED TO SAVE SPACE

 
Nice bike.
But you left out the two MOSt important parts of this story.
How many degrees of rake?
What is the outside diameter of the 21 inch wheels WITH the tire?



As for the tank, i dig the stock tank too. I want the bike to stand out but still pay homage to its roots. I may get knee cutouts in it when i get the seat. A local guy around here makes some pretty nice stuff. Kott Motorcycles is the name. I havent dealt with him yet but i like his work.http://kottmotorcycles.com/Kott_Motorcycles/Home.html

That seat sittin on the floor looks great!
It does go on this bike right?
Can you tell us who made the seat?
I live in the bay area.

Also....That wood toolbox in the background is very beautiful.
« Last Edit: February 10, 2012, 09:32:44 am by lucky »

Offline Vbled1

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Re: CB750 21 inch front and rear wheels + rake project
« Reply #41 on: February 10, 2012, 11:43:26 am »
NICE JOB MAN! WM MAKE SOME NICE BIKES.
Thanks SF.

[quote  SHORTENED TO SAVE SPACE

 
Nice bike.
But you left out the two MOSt important parts of this story.
How many degrees of rake?
What is the outside diameter of the 21 inch wheels WITH the tire?



As for the tank, i dig the stock tank too. I want the bike to stand out but still pay homage to its roots. I may get knee cutouts in it when i get the seat. A local guy around here makes some pretty nice stuff. Kott Motorcycles is the name. I havent dealt with him yet but i like his work.http://kottmotorcycles.com/Kott_Motorcycles/Home.html

That seat sittin on the floor looks great!
It does go on this bike right?
Can you tell us who made the seat?
I live in the bay area.

Also....That wood toolbox in the background is very beautiful.

That seat isnt for the bike, going with a single seat with a fabbed tail section. I looked at the seat it says "Cheetah Engineering, Santa Anita, Ca" i dont have any other info other the seat besides it being for a harley, my dad has a bunch of harley parts around and he put it on the bike for a sec to see. And yea we actually got that tool box for free from an angry landlord lol.

Offline Vbled1

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CB750 21 inch front and rear wheels + rake project *update 2/19*
« Reply #42 on: February 19, 2012, 07:22:35 pm »
So my bro and i worked on the bike this weekend and got the rearsets about 85% done. Need to work on brake side, making a plate for the linkage to attach to. Also need to do the linkage for both sides as i made the shift side a bit to long. heres a pic of what it looks like mocked up, im going to take some out of the linkage to get a better angle as shown in the second picture. Also i have a question below with a picture.




Question:
What do you guys who have rearsets do with the motor mount bolt where the stock footpegs were. There is about an inch gap on each side that is not threaded. Im guessing i thread it to the frame then cut off the excess? Spacers would be easy but not as clean IMO. thanks for the help.
« Last Edit: February 19, 2012, 07:24:19 pm by Vbled1 »

Offline Cheffish

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I had mine shortened and threaded at a machine shop. It looks clean and was pretty cheap.

Offline Vbled1

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I had mine shortened and threaded at a machine shop. It looks clean and was pretty cheap.
nice, thanks Cheffish.

Online Old Scrambler

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Very interesting build.............I especially caught the reference to a Salt Flats style...........I built a Triumph Cub for the Bonneville Salt Flats with 21-inch wheels...........I did not rake the frame but the swingarm is extended with an upward angle to keep the rear of the motor as low as possible.............I don't want to steal your great thread........just add a little inspiration...........and regarding handling........the big wheels make the bike roll very easy and its very smooth...........remember the speedway bikes had 23-inch wheels.   


http://www.facebook.com/pages/Salt-Team-Advanced-Landspeed/222251137821263
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
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Offline Vbled1

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Very interesting build.............I especially caught the reference to a Salt Flats style...........I built a Triumph Cub for the Bonneville Salt Flats with 21-inch wheels...........I did not rake the frame but the swingarm is extended with an upward angle to keep the rear of the motor as low as possible.............I don't want to steal your great thread........just add a little inspiration...........and regarding handling........the big wheels make the bike roll very easy and its very smooth...........remember the speedway bikes had 23-inch wheels.   


http://www.facebook.com/pages/Salt-Team-Advanced-Landspeed/222251137821263
hey always open to inspiration thanks. checked out that link, cool build. also like that hardtail posted on there. And rolls easy and smooth-awesome, havent had a chance to ride it yet but looking forward to it.

Offline B.O.X.N.I.F.E.

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Re: CB750 21 inch front and rear wheels + rake project *update 2/19*
« Reply #47 on: February 24, 2012, 02:56:32 pm »
Man I like a lot of what's going on here, go into as much detail as you want, post lots of pictures. This build is right up my alley.
1974 CB550

32 days and 5,536 miles on a CB550...

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and a couple years later, 38 days and 9,102 miles...

Forever West

... and all of it in a 4 mintue video

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Offline Vbled1

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Re: CB750 21 inch front and rear wheels + rake project *update 2/19*
« Reply #48 on: February 25, 2012, 01:24:04 am »
Man I like a lot of what's going on here, go into as much detail as you want, post lots of pictures. This build is right up my alley.
Thanks man, i plan on updating this regularly.  I checked out your trip link in your sig. Thats awesome wish i could run a trip like that. btw, the second link sends me to an error page, or i just dont know how to use facebook.

Offline 65Ch3v3LL3

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Re: CB750 21 inch front and rear wheels + rake project *update 2/19*
« Reply #49 on: February 25, 2012, 09:02:05 am »
What size tires are you running front and back?
1979 CB650
2011 Harley Road King
2008 Harley V-Rod VRSC DX
2012 Sierra Denali 2500HD
1965 Chevelle Malibu SS
1922 Ford T-Model