Topic: looking for double disc addition for single disc for a 72 cb750

[bbqbob]

anyone out there have a second disc,id really like to convert my newly acquired 72 cb750 to dual front disc.i cant remember if the calipers are reversible,any help is appreciated.thanks bob.

[754]

I got  rotors and probably a caliper and hanger, and I am in Canada, eh !
 They can go front or rear,  Speedo drive needs to be modded.
 Is your front end stock 72 ? Later forks are easier to work on, late ones chromed tubes, and longef lower legs.. easier to get a fork brace for .

[bbqbob]

thanks from another really old timer
,im north of kingston, my kids however live in etobicoke so im back to toronto fairly regularly,where are you located?
my front end on that bike is stock,
 i could swap out the entire front end  with a kwak one with lockeeds,floating rotors but would prefer to keep this bike as close to stock as possible,its got the 4 to 4 pipes and ive got the tank and sidecovers at paintshop now,bike is a 71 and i know that the green was not avail that year but ,,,,gawd i like that green, i guess let me know what you want for the rotor,carrier adn caliper, ill have to changeout the master also i guess with something from an old goldwing or a 78 supersport as they had double discs stock.im just starting into this bike having just acquired it,i feel lucky to have happened onto a singlecammer k bike. and thanks for responding btw to my query....bob

[bbqbob]

sorry ROT,
mybad i see your province, kelowna bc,
 also my bike is a 71 not 72,duh.maybe ill just look for a later front end,that way i dont have to muck about too much, i guess as long as the top tube diameters are same they will fit into the tripletrees.

[754]

If you want to keep it stock by all means.
The Kawi with the Lockheeds sounds good worth trying to get at least the brakes. Get more info on that please .
 All sohc 750 are 35mm  tubes, the late F are easiest to mount other calipers to.,
 BTW I used to ru  dual stock duscs, stock master cylinder, and did not know that may not be ideal til I joined here.
The stock worked fine in my opinion, but I ran -3 braided lines.

[PeWe]

Caliper and its holder are possible to use on the right side too. Brake line and bleeder need to replace each other.
Caliper bracket need shims to be parallel with the rotor.
http://forums.sohc4.net/index.php?topic=53532.0   
There are other threads too handling this subject
http://forums.sohc4.net/index.php?topic=154516.0
http://forums.sohc4.net/index.php/topic,154424.0.html

You also need to adjust for the speedo gear. Plus longer bolts holding both rotors
http://www.yamiya750.com/index.php?main_page=product_info&cPath=246_251_184_87&products_id=373
http://www.yamiya750.com/index.php?main_page=product_info&cPath=246_251_184_87&products_id=942
OR
https://www.ebay.co.uk/itm/Honda-CB-500-550-750-Four-screw-bolt-nut-washer-drive-kit-double-second-disc/292306422991?hash=item440ed20ccf:g:UwEAAOxy9eVRUwSQ:rk:3:pf:1&frcectupt=true
OR
https://www.ebay.co.uk/itm/Honda-CB-750-K6-K7-F1-F2-screw-bolt-nut-washer-drive-kit-double-second-disc/292307163031?hash=item440edd5797:g:6MEAAOxyA4ZRUwiW:rk:7:pf:0
Bolts only
https://www.ebay.co.uk/itm/Honda-CB-750-Four-K6-K7-F1-F2-Long-Screw-Bolt-Nut-Kit-Double-second-Disc/291907269528?hash=item43f7077398:g:y0QAAOxyzHxRUwrO:rk:22:pf:0

Longer banjo for the 2 lower brake lines (connection with brake light indicator.)
I use brake lines with stock like metal pipe from caliper. It is very tight on right side for a brake line. DSS MC work fine

[wannabridin]

Don't forget about the GL1000 front end swap.  2mm wider tubes (stiffer) and two brakes.  I believe it's even possible to upgrade the calipers to some 2 pot nissin's if you're so inclined.

[Don R]

 I always hoped at some point some enthusiast would cnc a batch of right side early caliper brackets.