VFR 750 1992 rear shock upgrade

Hello, i have a VFR 750 1992 and I would change original rear shock, is anyone use a shock of CBR 929? what piece I need for adapt it?

 

i got a fox shock on mine that I bought 17 years ago which has been rebuilt twice by them over the bikes history. I am sure some other people will pipe up with some ideas (jamie,) dont know about how he would ship it to your local though...

Got any pictures?

Welcome aboard mate!

 

I prefer adapt 929 CBR shock, but I rebuilt the mine if is not posible.

 

Contact fellow forum member Jamie Daugherty and he'll provide all the info you need. The link to his website is below and the pricing is the same for 3rd Gen conversion as the 6th Gen conversion.

Daugherty Motorsports - Motorcycle Suspension Performance and Modification


Rollin

 

nice pictures!!! Mine is granite blue...kinda black except in the sun-light then its dark blue.

 

I have one of Jamies shocks on my 90, along with fork springs and new shim stacks and what a difference it has made. Cant recommend his services enough. Post was no problem to Aus, and he was more than happy to help with a small issue i had after fitting. For the small amount of money he charges, compared to what i could get in Aus off the shelf, i would say use him and have the whole lot set up for your weight etc.

 

You bet, I build a lot of shocks for the 3rd Gens. No problem shipping to Spain, I ship Internationally pretty much every week. Take a look at the page from my site below and shoot me an email if you have any questions!

Daugherty Motorsports - Motorcycle Suspension Performance and Modification

 

FWIW... From the racetech site, Our Gen 3 rear spring rate is 16.0 kg/mm, while the 929 is 15.3kg/mm. And ideal rider weight of 160lbs.

I'm a bit heavier at 180lbs. I think my logic is solid, and I would actually get a softer feel from the 929 setup. Right?

 

Tink is right on, that's something I've tried to communicate for years. The springs just hold up the load, the damping performance is what generates the handling characteristics of the motorcycle.

Now, what makes things more interesting is that no valving in this world will make your bike handle well if you do not have the correct spring rate. I use calculated that result from the equations of damped harmonic motion. These equations are influenced by both the spring rate and the damping force. Equally as much by the object's weight, let's not forget about that!

With all of that said, I think the RT calculator is pretty far off. For your weight I have found a 1000lb/in spring to be ideal. That is 17.86kg/mm. The standard CBR929 spring would be good for about a 95lb rider - FYI.

 

Thank you Jamie. I'm certainly not going to ever see 95lbs again personally, and I'm pretty confident that only about 1% of members on this board are in that range.

For the current used prices, I think I'll get a 929 rear and give it a go. But does that mean that the 929 will sag worse than the stock spring? (actual feel/performance aside)