Tyre upgrades, inserts or no inserts?

bear the bear

Is a real bear
That clarified nothing for me... :oops:
HGH= Human Growth Hormone (If you are taking this as a cyclist, you are in the Armstrong league of performance enhancement) ;
Higenamine & Oxilofrine are what Rude/ Graves tested positive for and claimed supplement contamination. HGH is an injectable substance.
 
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