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Main Area => General GS500 Discussion => Topic started by: cboling on October 26, 2009, 03:37:06 PM

Title: Swing Arm Direct Swap???? (PICS ADDED)
Post by: cboling on October 26, 2009, 03:37:06 PM
Last week, i received a 1993-94 (I think) GSXR swing arm. It's all aluminum construction and will fit a 180 rear wheel. My thought was to see if I can get it to fit with minimal work and if so, would the engine be strong enough to pull a 180 tire? From pictures I have seen of the customs that Jim Knopf built, i would say it is possible that the engine would be fine but I am curious what you all think?

I know, I know......why should I care if I am selling the bike but if I don't sell it, I might just try to fit this thing.

By the way, I did a quick measure and both swing arm pivot points measure just under 230mm. (GSXR is like 225mm, GS is very close to that. Hard to tell without removing it.)

(http://www.bolingfordollars.net/Cycle_Parts/sa1.jpg)
(http://www.bolingfordollars.net/Cycle_Parts/sa2.jpg)
(http://www.bolingfordollars.net/Cycle_Parts/sa3.jpg)
Title: Re: Swing Arm Direct Swap????
Post by: Paulcet on October 26, 2009, 04:36:38 PM
No direct swap, but here is something to inspire you:
http://gstwins.com/gsboard/index.php?topic=34220.0
Title: Re: Swing Arm Direct Swap????
Post by: ohgood on October 26, 2009, 05:21:15 PM
if the gs can handle 2up, the tire size won't hurt the engine ;)

why a wider tire ? drag racing ?
Title: Re: Swing Arm Direct Swap????
Post by: cboling on October 26, 2009, 06:07:21 PM
I dunno. Looks? I like that fact that the bike is nimble as is. I also like the way that the inverted forks look but if I went that route, I would end up with a wider front tire too. I know I can fit a wider tire with the stock swing arm. I also know according to Psyber, the handling is a bit different. I dunno. :dunno_white:
Title: Re: Swing Arm Direct Swap????
Post by: psyber_0ptix on October 26, 2009, 07:15:18 PM
a bit is an understatement. I had to relearn how to ride a stocker and man was it twitchy feeling (but nimble)
Title: Re: Swing Arm Direct Swap????
Post by: gsf500RR on October 27, 2009, 07:12:59 AM
I have no doubt the engine could work out a 180. Of course you will feel less torque and less power and the agility will be reduce BUT look wise it should be awsome. Imho there is nothing better looking on a bike than a 180 ass, especially on a small bike. To bad there is no easy way like for a 160.
Title: Re: Swing Arm Direct Swap????
Post by: cboling on October 27, 2009, 07:35:44 AM
Actually, I think Psyber did the 160 pretty easily which is what I am thinking of doing as well. I just don't want to lose what little "ooomph" that the bike has.

Psyber: have you figured out the group buy on the 78mm pistons yet? That might be a good move and I have an extra cylinder I can get bored.
Title: Re: Swing Arm Direct Swap???? (PICS ADDED)
Post by: psyber_0ptix on October 27, 2009, 09:38:01 AM
i did a 160 and if you want to fit larger, you are going need to figure out chainline up front. I shimmed carrier by 2 washers and its still a bit close for comfort.

i've been working on a Matlab project for engineering analysis class and have a materials exam tomorrow...i'll try to call in sometime but it's just been busy.

GF's subaru is getting a new clutch also.
Title: Re: Swing Arm Direct Swap???? (PICS ADDED)
Post by: werase643 on October 27, 2009, 07:41:30 PM
yeah that is an easy swap  :icon_eek: 
i got the rear wheel with cush and rotor and axle and spacers in grey if you need one


if you don't go through with it...... I want the chain adjusters for my RG-V swingarm
Title: Re: Swing Arm Direct Swap???? (PICS ADDED)
Post by: cboling on October 28, 2009, 01:54:51 PM
Well, I got my shims in last week from BeerGarage (Cheers) so I think I am going to finish that this week so I can ride a couple of days or so. Then, i think I may spend a few hours taking off the swingarm and shock and seeing what fits and what doesn't and how much hassle it will all be. i will do my best for pics if things go well or even if they don't go well. Pics are goood. mmmmmmmmm pics.