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Wider swing arm???

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Wider swing arm??? - 4/23/2008 4:14:56 PM

newnut

Posts: 31
Joined: 4/17/2008
Status: offline

Does anybody know of a wider swing arm that will fit on my 1990 cbr 600f? Im doing a street fighter and want to go wider with the back wheel! is it possible? Im new to modding bikes so any help would be well appreciated! maybe evan a single sided one of another honda, that would be great!

Post #: 1

RE: Wider swing arm??? - 4/23/2008 5:44:47 PM

99offroadrngr

Posts: 34
Joined: 4/14/2008
Status: offline

i believe you could use the rear swing arm off of an F2.
i would check local junkyards for them.

(in reply to newnut)

Post #: 2

RE: Wider swing arm??? - 4/23/2008 6:22:46 PM

michigan_313

Posts: 694
Joined: 2/24/2006
Status: offline

you could use f2 or f3 but it takes a bit of work. it is not an issue of getting the swingarm to fit, it is an issue of getting the rear suspension setup correctly since the f2 and f3 use shorter shocks than the f1. if the rear suspension is not setup properly, the bike will be ill handling.

(in reply to 99offroadrngr)

Post #: 3

RE: Wider swing arm??? - 4/23/2008 11:16:54 PM

newnut

Posts: 31
Joined: 4/17/2008
Status: offline

wow, Thanks guys! I'll post sum pics soon of work in progress!

(in reply to michigan_313)

Post #: 4

RE: Wider swing arm??? - 4/24/2008 8:57:10 AM

newnut

Posts: 31
Joined: 4/17/2008
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so what can i do about the suspension set up? I like the back end higher definately not lower! what width rear wheel fits on the f2 and 3's then? Thanks again.

(in reply to newnut)

Post #: 5

RE: Wider swing arm??? - 4/24/2008 10:18:18 AM

michigan_313

Posts: 694
Joined: 2/24/2006
Status: offline

back end higher? are you talking about the subframe? or are you trying to raise the rear ride height?

if you just look at the shock, the f2/f3 unit is shorter than the f1 unit. this is because the mounting location of the f2/f3 frame was changed and so accordingly on the swingarm. in order to make up the difference on the f1, the f2 or f3 swingarm will need the shock mounting plates made taller by about 1/2 inch or 15mm. and the f1 linkages can be used on the f2 or f3 swingarm. if this isn't done, the handling performance will suffer.

the f2 rim is 4.5 inches wide and the f3 rim is 5 inches wide, so a 160 and 180 tire respectively. as the rim gets wider so does the swingarm.

one other thing to be concerned about. if you use the f3 swingarm/rim combo, there may be a good chance that you will have a chain clearance issue with the sideplate on the main frame. becuase the f2/f3 frame is wider at the swingarm pivot area. you are basically putting a much wider rim/swingarm combo on a narrower frame. the f2 rim/swingarm combo is not too bad, but the f3 swingarm/rim combo could likely cause the chain to run offset on the sprockets thereby causing premature wear.

(in reply to newnut)

Post #: 6

RE: Wider swing arm??? - 4/25/2008 11:36:48 AM

newnut

Posts: 31
Joined: 4/17/2008
Status: offline

Wow, you certainly know your stuff and you dont know how gratefull i am! many many thanks! Ben

(in reply to michigan_313)

Post #: 7