I'm 18 years old. I have buy a stupid junior cassete and chainring. I'm going with a 52x15. Dude WTF i'm i gonna do with that? This is going to cost me $$. Plus i don't use that tiny of a gear for anything above 14 mph. DAMN DAMN DAMN. i have to go 120 mile round trip to the LBS to get it. I can't wait till i can use what ever gear i want. PLUS - the cat 5 men that are not juniors can have normal size gears. I'm just gonna go for it though.
Only good thing is been a junior is your young.