Author Topic: Rear Suspension?  (Read 796 times)

0 Members and 1 Guest are viewing this topic.

Offline Ricisan

  • Full Member
  • *
  • Posts: 62
Rear Suspension?
« on: September 19, 2022, 04:54:33 PM »
Since I have upgraded front end.
I might as well do something trick w/rear shocks.
I have Marz shocks that are rebuilt.

I would like to move the upper shock mount a few inches.
A little extra rear wheel travel would be nice.
Has anyone done this>
I know heavier springs and possible revalving will be necessary.

Any help out there?  lol

R

Offline Don R

  • My Sandcast is a
  • Really Old Timer ...
  • *******
  • Posts: 20,043
  • Saver of unloved motorcycles.
Re: Rear Suspension?
« Reply #1 on: September 19, 2022, 09:49:15 PM »
 I'd just find a longer shock. The mount there is well gusseted to handle the load.
No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Offline Ricisan

  • Full Member
  • *
  • Posts: 62
Re: Rear Suspension?
« Reply #2 on: September 19, 2022, 11:00:26 PM »
That won't get me more travel.
I'm guessing the forks have 5.5 in and the rear about 3.5 in.
I would like 5.5 in the rear if that is possible?
Not sure if there is enough clearance?

Where the frame meets the loop is a strong point.
That should give me the extra travel I want?

Thanks for the suggestions.

Offline newday777

  • Really Old Timer ...
  • *******
  • Posts: 5,356
  • Avatar is my 76 K6 in Colorado w/Cody on back 1980
Re: Rear Suspension?
« Reply #3 on: September 20, 2022, 01:26:22 AM »
That won't get me more travel.
I'm guessing the forks have 5.5 in and the rear about 3.5 in.
I would like 5.5 in the rear if that is possible?
Not sure if there is enough clearance?

Where the frame meets the loop is a strong point.
That should give me the extra travel I want?

Thanks for the suggestions.

Actually where the frame meets the hoop is not as strong as where the mounts are stock as you are adding extra forces reward. So if you do that be sure to add frame strengthening gussets to handle the added forces.

I had my frame break back there, on my K6 that I had built a box to carry my hound(part golden lab), and had strapped my gear to adding more weight in my cross country trips in the late 70s. I had to get added gussets to both sides welded on(1" or 1.5" angle iron) to repair it while on the far side of the country.
Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline Stev-o

  • Ain't no
  • Really Old Timer ...
  • *******
  • Posts: 34,400
  • Central Texas
Re: Rear Suspension?
« Reply #4 on: September 20, 2022, 12:32:02 PM »
That won't get me more travel.

I would like 5.5 in the rear if that is possible?


Just curious, why would you want that much travel?  You ride off road?!
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Ricisan

  • Full Member
  • *
  • Posts: 62
Re: Rear Suspension?
« Reply #5 on: September 20, 2022, 12:50:03 PM »
I've had this bike for over 30 yrs.
I want it like I want it!  lol

I was racing MX when the long travel started.
I'm old and I need all the comfort /control I can get!  Eek

Offline Shtonecb500

  • Master
  • *****
  • Posts: 1,652
    • Youtube profile
Re: Rear Suspension?
« Reply #6 on: September 20, 2022, 05:12:48 PM »
cant you get a lowering kit so the shocks lay down more and you achieve more travel, right?

Combo a longer shock with lowering brackets to maintain seat level is thats important.
73/74'' CB500/550 resto-mod - sold
75' 750f 91' cbr f2 swap cafe - mock up
74' 750 chopper hardtail - complete - sold
74' CB750/836kit - Black mix & match - daily rider - always tweaking
71' cb500 K0 survivor - complete
71' K1 - CANDY GOLD/BROWN Winton kit - in process