Kawasaki World banner

41 - 60 of 89 Posts

·
Registered
Joined
·
2,857 Posts
Discussion Starter #42
Back from SS powder coat. They did a great job. Smoothed the frame out beautifully.
F33425DA-9CD9-407A-874A-DFF1B408B4F7.jpeg
EB2CADE4-5532-4D34-8D43-3A85EC744D60.jpeg
80E7E30A-8F86-4EDB-9AC9-23689F23593B.jpeg


now to get this hole plugged.

7191D1A2-8279-42C9-A82F-D16C80CBDCAA.jpeg


cmg
 

·
Registered
Joined
·
2,857 Posts
Discussion Starter #47
Graves provides a high quality shock link and dog bone. Billet.

74CCCE7E-5B9E-4BE8-A7DE-55904A92DBB8.jpeg
AE0412B5-66F8-4B5E-8BA9-03C8526684D3.jpeg


the captured nuts are a nice touch.

C29F2A16-7B61-4723-933C-5307AABA4EB6.jpeg


the Graves link will provide more leverage.
Going to need a heavier spring I think.

cmg
 

·
Registered
Joined
·
2,857 Posts
Discussion Starter #51
who's doing the calculus for the shock geometry and frame-swingarm relationship?
Me....lol
I have access to a 2010 Yamaha R1. So all the measurements for the R1 arm came from that. Oem set up. Swingarm angle, ride height, rake and trail. All very conservative.
One thing that was interesting is that the shock was almost straight up and down.
The graves link helps put more shock angle into the suspension. And on R1s requires a stiffer spring.
When I had the 12 frame/10R forks and R1 arm mocked up, its in the ball park of modern Sportbike specs.
But I will need to tweek. So I have assembled
a few components to help me get to a good baseline. Only had empty cases and a empty head hung in the frame. Will need the complete engine to finalize a baseline. I have
a few dog bones. Made a few top shock perches. And drilled a extra hole for the shock rocker link.

E6C3D59A-CF7A-45D9-B865-EAD4C1EE3635.jpeg
5CD175C6-A07E-45F0-9998-4A37F033A59A.jpeg


This currently gives me adjustability for shock angle, shock height, swingarm angle from 0-13° with multiple shock height locations. With full shock travel.

cmg
 

·
Registered
Joined
·
656 Posts
This is interesting, Im curious how it will perform after all those mods. Did You weight rear swingarm? Is 12 a heavy one, or even with comparision with modern bikes it still can compete .
 

·
Registered
Joined
·
2,857 Posts
Discussion Starter #53
The main issue to get around is the swingarm pivot shaft. The 12 has a one piece 25mm dia threaded shaft.
The R1 is 22mm.
The big threaded ends are also different sizes from 12 to r1.

here’s pics of the R1 shaft.
1CB46366-4F52-42AC-8CDD-74B01E403256.jpeg
76F60540-040D-4DB4-AFF4-DFB99D895635.jpeg


the 12 frame is not threaded for the big end.
12s use a threaded adjustable collar on the inside of the frame. The R1 has a threaded frame.
8E2021F1-9405-4131-86DC-2DFAE04A0973.jpeg


I have from a earlier project a zx14 pivot shaft ( 20mm) and a threaded slip on collar that I made.
D9DAD552-CBEA-41DF-A1C8-BF2ADA4C9209.jpeg
9E551893-C489-4F9E-9CE3-F441B9BF19F2.jpeg
D2291034-BBF4-4233-BE18-48D82FCBA8A2.jpeg
 

·
Registered
Joined
·
2,857 Posts
Discussion Starter #55
I used all of the oem R1 swingarm bearings and pivot shaft tube. I bushed the pivot shaft tube to fit the 20mm zx14 pivot shaft.

3D7E214C-70D5-4CB7-A370-78F4524558D1.jpeg
A4574995-96A5-495B-9593-F9070F4836A2.jpeg


then I tighten the pivot shaft using the zx14 sequence.

cmg
 

·
Registered
Joined
·
25,349 Posts
This thread is awesome!!
I'm learning shit that I don't understand - Makes me feel funny - But I like it!!
Seriously - Cool stuff!!
(y) (y) (y)
 

·
Registered
Joined
·
2,857 Posts
Discussion Starter #60 (Edited)
B model steel triple clamp nut on the left. Aluminum Gen5 nut on the right.
B model 12 seal fits perfectly.
855BC92E-F615-479D-8FD2-A515636A60EC.jpeg

543A5312-7027-4C6E-8B50-A7A3102AFC6F.jpeg

792F2CF2-3A8D-48AC-B796-626336D185F6.jpeg


little stuff like this everywhere helps to make the modern bikes lighter.

cmg
 
41 - 60 of 89 Posts
Top