F4i Details?

[skymasteres]

Okay, well it's not for lack of wanting to share information. I'm not able to access the site at work anymore and there's precious little that I have to offer. My shock was "customized" by Jamie Daugherty of
http://www.daughertymotorsports.com/ 


This is what that shock ended up costing me:

Shock Conversion - CBR600F4 to FJ1200  $190.00
Revalve Rear Shock                               $120.00
Spring, 2.25" ID, 4" Long, 1000lb/in       $  85.00

Pricier than I had initially hoped. But the conversion was the most expensive part. Here is a good picture showing what the modification to the aluminum end of the shock.



Basically a grove is cut in the eyelet for the clevis sides which are then secured through the original eyelet via a bolt. The Eye to eye length of the shock came out to 295mm vs 290mm for the stock shock. This is about the minimum length that the F4i can be shortened. As it stands, there's about 1mm of clearance between the original eyelet and the relay arm.

I ended up making a REALLY short set of dogbones. (About 0.75" shorter than the ones that Mark made up)

Here are the stock, Mark's, and mine. (I only have about another 1/4" that I could shorten them before I bind against the swingarm though)



The 1000# spring on mine is configured for the 1.5" shorter swingarm length of the Thunderace that I am putting on.

You should be able to get away with just swapping out the spring though.

[jscgdunn]

Mike
Did u Fab the clevis extentions? Of course for the 85 they are not required.

Jeff

[skymasteres]

Mike
Did u Fab the clevis extentions? Of course for the 85 they are not required.

Jeff

Jeff, I wish. Now that I see how brilliantly simple the idea is, I certainly could if I had to do it again. (Save myself the $190) The proceedure is simple,  cut a slot a little wider than the bolt od, make up two "L"s with holes drilled appropriately,  and bolt them on. Presto, you have an extension that is rigid in all three axis'.