This may seem like a strange one, and it is. But I was wondering if someone could take a measurement on a swingarm for me. I need to know the width, from dropout to dropout of a factory GS swinger.
And, if anyone is feeling ambitious, I would love it if you could measure the actual width of the center section of the wheel. From the rotor surface to the outside sprocket surface on the other side, I'm thinking ruler through the bearings would work out best to measure said distance.
Why do I need all this? I need to make sure I am going to be even semi close with putting this wheel onto my cafe bike. I know in the end it will take a GS wheel and some time to get it right, but I want to at least get an idea of what I'm looking at. Any help would be great. Thanks!
Steve
what bike are you putting this wheel into?
I would measure but I havent had a gs in a long time.
I've got a spare swingarm... but it's at my parents house.
A couple of slackers.
Swingarm inside: 213mm
Bearing to Bearing outside: 165mm
Sprocket to Rotor outside: 170mm
Outside Rotor to recessed Bearing: 18mm
Outside of Sprocket to outset Bearing: 15mm
Rotor thickness: 6mm
Sprocket thickness: 6mm
It is going into a 72 Honda CB350 Twin. There aren't many good tire options for the factory wheel sizes, and getting a set laced up with some wider hoops is uber expensive, believe me, I got the quote. So I looked for other options, and since there is zero room to run anything bigger than a 140 series shoe in the back, it naturally led me to the GS wheel, common, cheap, and it takes a 140, and now that I've found a Dunlop radial ply tire in the 140 series, and with a matching 120 up front, I'm in business.
But now I just have to make sure it is going to at least get close. I am almost 100% sure there is going to be some machining that is needed on either side of the wheel, but lets hope not too much. Thanks for the measurements dgyver! I'll go check out the factory swingarm tonight. Thanks again!
Steve
this man is a cannibal--dont give him any more information.
Interesting project.
The GS front wheel is 3" and uses a 110. Not sure about fitting a 120.
Let me know if you need anything else. :thumb:
fyi...89-97 Katana 600/750 wheels are the same as the GS.
Quote from: nightrider on January 28, 2007, 01:36:17 PM
this man is a cannibal--dont give him any more information.
Hahaha, strangest reaction I've gotten so far! I'll admit, strange using parts from different model lines on a project, but sometimes things work out just the way you need them to if you hunt around. And I LOVE vintage bikes, the style, the character, everything but the poor suspension and brakes, so I figure why not update?
But yeah, I know the front of a GS takes a 110, I'm not using one. I'm using a Kat front end, dual front discs on a circa 72' frame, mmhmm, brakes much? :icon_lol: But the rear wheel is the only one that gives me problems, front ends are easy, since you can just use the triples and fork legs from a specific model, and there ya go, wheel is obviously going to fit perfect. The rear end is another story, as you have to worry about chain/tire clearance, tire/swing arm clearance, and a list of others. And from the measurements you gave me dgyver, it looks like the wheel is going to fit almost perfect! And this, is very very good news.
And I think I'm good on the measurements so far, I really appreciate the help, sometimes I wonder how someone could do a project like this without the internet. Oh, speaking of which, I am in no way taking credit for all this vintage/new school business, check this guy's site out: www.ohiocaferacers.com and look at the CB350RR. A lot like what I'm doing, only I'm on a much smaller budget. I originally was looking for late 90's USD GSX-R front end, like he has, but they fetch about 600 bucks on the private market, no thanks, that's almost my whole budget, bike included! So since I decided that I'm building it for a street bike, and I'll never really need the Inverted set-up for what I'm using it for, I just am going to opt for the Kat front end. Trying to build this whole thing with reliable, well known, easy to obtain parts, so if something does break, well, it won't break the bank.
Long post. Thanks again guys! I'll keep you updated on my devious plans :icon_twisted:
Steve
Quote from: sclay115 on January 28, 2007, 08:20:07 PM
....
But yeah, I know the front of a GS takes a 110, I'm not using one. I'm using a Kat front end, dual front discs on a circa 72' frame, mmhmm, brakes much? :icon_lol:
....
89-97 Katana 600/750 use a 3" front wheel = 110
98+ Katana 600/750 use a 3.5" front wheel = 120
You may be able to use a 120 on the 89-97 but it may provide a profile that is too sharp. I am just not too familiar with a 120 on a 3" wheel. Clearance is another concern but the Kat axle is wider than the GS but they use the same fender mount.