CB350 Project

[danker16]

can i have the shock mounts you made ??

 

[MotoMadness]

Monoshock conversion mockup done. Time to finish off some welding and off to powder we go.

 

[MotoMadness]

Monoshock setup done. Time to finish up the braced swingarm.

 

[xb33bsa]

how much rear wheel travel ?

 

[crazypj]

Probably 'a lot' looks to be about a 20:1 leverage ratio?
Going to need some decent bracing to keep the arms from bending

 

[MotoMadness]

Yea the travel is going to get adjusted. The swingarm is being braced just have to allow for chain clearance.

 

[xb33bsa]

very nice looking fab work
5-6" of wheel travel would be more than enough, any more and you will start to see serious issues with the chain rubbing on the bottom front of the swinger
you are going to need to redo the shock shorten its travel anyway right now you have epic mx travel lol
looking at your work I am sure you will succeed

 

[MotoMadness]

CBR250R Frontend going on with HyperPro Springs and Woodcraft Clip ons

 

[MotoMadness]

Still need to adjust the rear suspension a bit once I get my custom HyperPro shock made up.

 

[MotoMadness]

 

[SpottheDogg]

cool build! 8)

 

[iGreek]

Looking good so far man. Kickass build.

 

[behrboy]

Monoshock setup done. Time to finish up the braced swingarm.

Love this pic and that is one shiny engine!

 

[MotoMadness]

Fender Mockup. Bungs machined just need to fab up some round bar supports

 

[ekb20b]

nice build !

 

[SpottheDogg]

How much time did you spend on the rear suspension math? Leverage ratio? Linkage length? Spring rate?

 

[crazypj]

When 'designing' suspension, I find 5~6 bottles of Newcastle Brown makes the 'math' go a lot smoother ;D

 

[SpottheDogg]

I agree, seems like you'd want to get it right

 

[crazypj]

Nah, just build it then work things out later, it's actually safer than many of the very poor 'modifications' carried out on stock suspension (forks lowered so much wheel contacts frame/pipes, suspension locks up suddenly after inch of travel, frame loops so low rear wheel hits them when sitting on bike, etc)
Coasters (beer mats in Britain) are great for 'engineering drawing when you've 'had a few'

 

[SpottheDogg]

I guess it can't work much worse than stock, lol