Custom Fighters - Custom Streetfighter Motorcycle Forum banner
1 - 20 of 23 Posts

·
Monkey Wrench
Joined
·
105 Posts
Discussion Starter · #1 ·
I'm putting a 2006 GSXR 750 front-end on my '69 CL350 and I'd like to get a wheel on the front to match the back. I see two avenues: Buy stuff or make stuff. One way or the other, it seems likely that I'll get an aluminum rim laced up so I can put a common-sized, sticky 110/70 tire on there so as not to be wider than the rear.

The buy-stuff avenue is most palatable to me, as I would prefer to minimize variables. Can I just buy a Ducati SportClassic or Triumph Thruxton wheel and swap out some bearings or what?

The make-stuff avenue has been done plenty of times, but as I have no machining capabilities or access to a warehouse of parts, I need to get everything specced out if I expect it to be done properly by a shop. I've read about Harley hubs, but not which one. I've read about machining and different bearings, but I don't know which will work exactly. This is what I'm trying to get to the bottom of. The best I've found is this thread:

http://www.customfighters.com/forums/showthread.php?t=4111

Any help with the specifics for a set of 2006 GSXR 750 forks would be greatly appreciated...
 

·
Registered
Joined
·
371 Posts
funny i actually used a cl360 wheel on my gsxr1100 forks and now im not using it. from what ive seen the k6 forks use 25x52x15mm bearings which will not work since the cl 360 axle is 15mm. you would have to change out to a 25x42x9 bearing and get the drum hub milled out. I got mine milled out to 20mm ($60) to accept the gsxr1100 axle but i changed my mind instantly when the bike could barely stop with the shitty drums. milling the hole out to 25mm might be pushing it since there is the speedo gear but im probably wrong.

my suggestion, convert it to disc. i can literally push my bike around with the lever fully pressed and the front wheel will still roll. to me that is scary since there is 40hp and 375lbs behind that brake and i can easily push it around. you will probably have to use a 19inch rim, preferably off a gl1100, suzuki gt380, suzuki gt550 (dual rotors), suzuki gt750. the rim uses 3.25 tires so 110/70 should work, if you can find them for a 19", hell even a 18". cb750's might work but it looks like one part of the hub needs to be machined to accept the larger axle. so far what i went with is this:
1975 suzuki gt550 19inch rim
1998-2008 cbr1100xx rotor or 1998-1999 cbr900rr rotor (since you have radial calipers you can use any that has a hole circumference of 78mm and equal to or larger than stock gsxr rotor diameter)
single caliper off early gsxr1100 and master off zx6r



this is the site i used to find what rotors i can use http://metalgear.com.au/

thats all the help i can give you if you want to stick with a reasonably priced rim
 

·
Monkey Wrench
Joined
·
105 Posts
Discussion Starter · #3 ·
Excellent, thanks. I'm definitely going with discs--it's half the reason I went modern. I'd like to use black Tokico calipers with a 310mm rotor (stock for the forks)...The tricky bit seems to be getting everything centered and lined up. It's daunting.
 

·
Is my bike ok?
Joined
·
15,255 Posts
If you look around in my build thread (link in my sign) I got an early CB hub on a front end just like yours. There should be lots of measurements in there. Hope that helps somehow.


If you need a spacer or something made up just shout. There's a lot of guys on here with machines happy to make parts. Good luck.

Sent from my SCH-R720 using Motorcycle.com Free App
 

·
Monkey Wrench
Joined
·
105 Posts
Discussion Starter · #5 ·
Sweet, thanks.

It seems like the common/easy route is to get the hub from a 2000+ Harley Narrow Glide, install GSXR bearings (same outer diamter), and drill the GSXR rotor to the bolt pattern. Not much mention of whether or not spacers need to change. Numerous informative threads:

http://www.dotheton.com/forum/index.php?topic=45303.0

http://forums.sohc4.net/index.php?topic=102261.0

http://forums.sohc4.net/index.php?topic=58117.25

http://www.dotheton.com/forum/index.php?topic=15073.0


I'm very curious about the RAD hubs described as lighter than HD and ready to except a modern rotor...

http://www.radmfg.com/RAD-Front-Hub-for-Suzuki-V-Strom-p/radh-sp-vstrom1f.htm

My calipers are radially mounted, which makes a difference in various fitments.
 

·
Monkey Wrench
Joined
·
105 Posts
Discussion Starter · #6 ·
From reading through all that, it looks like the easiest route is to get the wheel/hub from a 2008+ Narrow Glide, some 25x52x15 bearings, a 310mm rotor from a '90-'92 Kawasaki ZX11C, and the stock black Tokico calipers for the 2006 GSXR, and it will all bolt right up.

Of all those posts, this is the most important:

http://forums.sohc4.net/index.php?topic=58117.msg723112#msg723112

My outstanding question is, what spacers do I use for the wheel? What about the speedo?
 

·
Monkey Wrench
Joined
·
105 Posts
Discussion Starter · #7 ·
Really looks like the offset of the ZX11 rotors would cause problems, even if the five-bolt pitch circle diameter was the same as that of the Harley hub.

If I could just...hold these parts in my hands for a bit I could align and measure and confirm...
 

·
Monkey Wrench
Joined
·
105 Posts
Discussion Starter · #9 ·
Suzuki GT550 wheel/hub, Blackbird rotor, onto a GSXR front? What spacers did you use between the forks and the wheel bearings?

8.5mm is the six brake rotor mounting holes? 78mm is the pitch circle diameter?
 

·
Registered
Joined
·
371 Posts
Its 8.5mm holes for the GT550 rotor holes. The cbr rotors are 6.5mm. It all depends on your fork spacing really, I used 93 gsxr1100 forks and I don't think I would have to space it too much it looks like. I'd go with the gt550 wheel if you were on a budget. Not sure how much the harley wheel would be but I'd imagine it would cost a good amount since it has the harley name. Yes you can use any rotor with 78mm of the bolt hole circumference even though I think the mean diameter. Use that site I linked you it saves you so much googling.

the spacers i need are around 30mm for the right side and 27 for the left side. i need to offset the rotor approx 7.7mm. good thing i have like 30 10mm washers i can use.

I used 10mm spacers for the rotor, caliper barely clears the spokes but fits onto the rotors nicely. i got a nice 8.5mm drill bit and drilled the holes out and this is how it looks

 

·
Monkey Wrench
Joined
·
105 Posts
Discussion Starter · #11 ·
My search for "narrow glide" wheels has been difficult, and I think it's because I don't understand Harley terms. "Narrow glide" isn't a model, but a style of forks that were on various models...I think I need to find out what models from 2008 on were considered not wide glide...Can anyone steer me in the right direction?

And while I'm here, does anyone know what the width of a 2006 GSXR hub is, from bearing to bearing?
 

·
Is my bike ok?
Joined
·
15,255 Posts
If you find all the pieces to just bolt this together I'd be super interested in seeing what you come up with. Chances are you're gonna have to make shit.

Find the forks you like ...
Find the rims you like ...
Connect the dots with made pieces.

Good luck on your searches.

Sent from my SCH-R720 using Motorcycle.com Free App
 

·
Is my bike ok?
Joined
·
15,255 Posts
I know I'm a little late... but,

http://cognitomoto.com/


You can go to "must haves" and then "gsxr hub bolt on conversion". That should be exactly what you're looking for. Plus, you can use the rest of the gixxer stuff you have (Calipers, rotors, axle, spacers, etc)
Where's the fun in that?....
 

·
Is my bike ok?
Joined
·
15,255 Posts
I agree. I'm quite fond of spokes rims on gsxr front ends myself.....


Lol. Was just messing around. Nice find on that hub. Damn sure cheaper than a lathe or custom machine work!

Sent from my SCH-R720 using Motorcycle.com Free App
 

Attachments

·
Monkey Wrench
Joined
·
105 Posts
Discussion Starter · #20 ·
I have a Harley wheel here, for a 2000+ Dyna non-wide-glide. Near as I can tell, it measures 119mm from bearing edge to bearing edge. There is 1.5mm of extra flange on both sides.

Can anyone with a late model GSXR wheel and a pair of calipers measure from bearing edge to bearing edge for me? If you happen to have the OEM spacers, I'd love those measurements too...
 
1 - 20 of 23 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top