Senke CG125 issues fitting 90/90-18 tire - help needed please!

Hi all,

so i would like to put some wider tires on my Senke CG125 chinamoto. I've read number of posts [mostly by Serpentza on his crapbike upgrades - thanks!] who is saying that 90/90-18 fits without any modification to existing swing-arm, but after trying it in person - it is really tight fit.
So question for all, and assistance requested is - how to modify swing arm to fit 90/90-18 or maybe even 110/90-18. What i see that is in my way is break stopper arm. Any info or help how to twist/bend/turn do anything with it so i can comfortably fit wider tire? Maybe swingarm from some other bike will fit?

Any link to video/text manual will be greatly appreciated!

Thanks

Nenad

Ok - forget that i've asked this - i have not done my homework well :(

Obviously i can put extra washers or some sort of bushing and push torque brake arm further to give some clearance.

Thanks

Nenad

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