What rims are u using bro? Standard Stock? Well 1st time i have seen people change 2 tyres at a time..if they do also is when its same dimension....well no harm but well logically u ride will be heavier and not that balance..and if u are using stock rims then it will look like "Donut"...haha but thats not the main issue...stock rims cant really handle 205...the Width of it wont hold it as stable so when even u change it wider it wont help in stability...rubber are flexible and the rims are to hold them in place yea?..in ur case the front set is lighter and will be dragging a heavet set at the rear...dats if u proceed..thats my opinion...no offence ya...if u did it already do drop the feedback here...i also wana know...=)

I lost the clip too. What you can do is go to service centre and ask for the particular clip. Cost you less than RM 8.00.

Hope this helps