simon
Speeding Up
- Jul 19, 2006
- 97
- 0
Hi Guys,
I got my first road bike last year, it came with a 50-34 crank and 11-25 cassette.
I'm thinking to change the cassette, too many holes. Or even the crank.
Anyway, answers to the questions below would be super helpful.
It should be noted that I'm a theorist, i.e. the decisions I make about my bike setup are done with (otaku style) calculations. I don't actually climb... but hope to one day, soon!
Hence, as you guys actually do climb (I keep up with the threads), your help is critical!
A) It looks like my 50-34 compact crank has 19 usable gears. That is, when using the 34 and 11, it seems that my chain runs against the inside of the 50 chainring.
Questions:
With a 52 or 53 and 39 crank, do you actually get 20 usable gears?
In particular, can you use the 39 with the smallest gear in the cassette?
And, is it expected that the front derailleur and or chain angle prevents us from being able to use all 20 gears? Or not?
B) Could some of you guys let me know what crank and cassette combinations you use for the climbs you have been doing recently? And do any of you actually swap cassettes for hills, TT, etc.?
Cheers!
Simon
Ps. If and when I do make it to one of the TCC rides, I'll be the one eyeing up everyone's setup
I got my first road bike last year, it came with a 50-34 crank and 11-25 cassette.
I'm thinking to change the cassette, too many holes. Or even the crank.
Anyway, answers to the questions below would be super helpful.
It should be noted that I'm a theorist, i.e. the decisions I make about my bike setup are done with (otaku style) calculations. I don't actually climb... but hope to one day, soon!
Hence, as you guys actually do climb (I keep up with the threads), your help is critical!
A) It looks like my 50-34 compact crank has 19 usable gears. That is, when using the 34 and 11, it seems that my chain runs against the inside of the 50 chainring.
Questions:
With a 52 or 53 and 39 crank, do you actually get 20 usable gears?
In particular, can you use the 39 with the smallest gear in the cassette?
And, is it expected that the front derailleur and or chain angle prevents us from being able to use all 20 gears? Or not?
B) Could some of you guys let me know what crank and cassette combinations you use for the climbs you have been doing recently? And do any of you actually swap cassettes for hills, TT, etc.?
Cheers!
Simon
Ps. If and when I do make it to one of the TCC rides, I'll be the one eyeing up everyone's setup