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Old 06-04-21, 04:00 AM
  #25  
ZHVelo
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Originally Posted by DJKTri
So I have a Tri event coming up in a little over a week.. as I mapped out the course, I noticed the climb was a little longer with elevation than I expected. About 2 mile +8 -to 9%

I have a Giant TCR Composite 2 w/ 9 speed Shimano Ultegra Components. I'm not an expert cyclist, so I apologize If I'm missing any crucial info.

I just put a 12-27 cassette on in place of the 11-23. The chainring is 53/39. My rear derailleur is an Ultegra RD-6500 which will only go up to 27/28 if I recall.

So.. advise if I want to get some better hill climbing gears. Can I try a 12-30 cassette (squeeze it in)? Do I need to get a pickup a different derailleur and get maybe a 12-34. Or.. different chainring?

Trying to determine best course of action and parts needed as this is getting close.
You want to do 2 miles at 8.5% gradient with 39/27? Unless you are real strong, good luck grinding that out.
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