Announcement

Collapse
No announcement yet.

Shock question...

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Shock question...

    What if a guy comes across a aftermarket 900rr shock... can it be moded it to work on a Hawk?

    Or is there more involved? or won't work?

    Rob
    Rob
    88 Street Hawk
    F2 tank, Aztec8 dual 4", Duc seat and CF cowl, Stage 3 jet, Uni Pods, M4 stubby, SV650 clips, controls & fuel pump, GSXR front mc and CFB1000 front caliper, F3 forks upper and internals, Penske 8983, Gino RCR, rear jump plates & R6 pegs and Vapor gauge...
    04 CRF50 pit bike and stunt runner...
    91 Suzuki GSF400 Bandit (she's a runner now...)

    #2
    The stock CBR 900RR shock is modded at the top (non rod) end. The mounting 'eye' is narrowed by machining some material off each side. Where it mounts in the farme of the Hawk is a little narrower. The CBR spring gets removed, and the Hawk spring re-used, along with an aluminum spacer. I can post photos if needed.
    Any aftermarket shock would probably need the same treatment. I think we all would be interested to hear how well it works, and what parts you used.
    -I'm sorry....I did not know she was your sister.
    -If Buckleys cold mixture went rancid......how would anybody know????
    -Dont piss off the quiet guy with the chain saw.

    Comment


      #3
      I would be interested!

      As I have been told the CBR shock doesn't give you much except ride height because it is under sprung, even with the Hawk Spring.

      I would think if you got a heavier spring that might help.

      Ask around. Steve Lenac is good, Hord is good, Peter Kates at GMD Computrack is good.
      BIKES: Honda: RC31 Racebike/ CRF 110 Mini Motard, DUCATI: 748
      Former MSF Rider Coach / Trackday Instructor/ Expert Roadracer #116
      "I'd rather ride a slow bike fast than a fast bike slow."

      Comment


        #4
        From the list for others education.

        Per "Milktree" Aka Will

        Yes, have it rebuilt/revalved/resprung for a hawk, it'll work great.
        You'll want more rebound damping and much heavier spring than the
        900rr wanted.

        If it's not adjustable enough with its current lower eye, make sure
        you can get an eye-to-eye length of somewhere between 308 and 320mm.
        Stock shock eye-to-eye length is 303, but you'll want longer than
        that. Much more than 320 and you'll have to do weird things with the
        sidestand, centerstand (if you still have it) and you'll wear out
        chain sliders on the top of the swingarm.

        The stock Hawk spring is about 1,020 lbs/inch, If you're about 155 w/o
        gear you'll want something like 1,200 or 1,300 lbs/inch. (I'm 155 and
        use a 1,300lb spring on the track, it's kinda stiff for the street,
        but great on the track)

        The stock 900rr spring is like 800 lbs/inch, so it's way too soft for
        the Hawk.
        BIKES: Honda: RC31 Racebike/ CRF 110 Mini Motard, DUCATI: 748
        Former MSF Rider Coach / Trackday Instructor/ Expert Roadracer #116
        "I'd rather ride a slow bike fast than a fast bike slow."

        Comment


          #5
          Great info Doc. There is obviosly more to this mod than I thought.

          Comment

          Working...
          X