[motoadve]

Which one gives you a less resistance or which is easier for bery steep climbs.

I have a bad knee and cannot pull hard gears. The terrain I ride is very steep

 

[derby]

34/22=1.545
36/24=1.5

 

[motoadve]

Will the 0.45 difference be noticeable you think?

 

[blcman]

Will the 0.45 difference be noticeable you think?

Yes! .. I have run both set-ups on 2 different but similar bikes and after awhile my knee can notice the difference.
Something else to consider is the weight of the 36 rear cassette and the limited choices of them.
I have run a Q-ring as a small ring up front and that seemed to help alot with the dead spot at TDC...spendy though! :thumbsup:

 

[motoadve]

What is a Q ring?
This will be in a FSA SL-K BB30 is there a 22 sprocket for this setup?

 

[motoadve]

The bike is a Cannondale Jekyll ultimate.
It only comes with 2 rings and the combination is 26/36.
My bad knee couldnt take it in the steep terrain I ride.

Ideally I would like a 36/22 , my knee is not getting any better cartilage is worn out and ligaments gone (motorcycle accident) But love to ride and also need to, if I dont ride for a week, my knee gets very painfull. But if I pull strong gears I get pain too.

 

[blcman]

What is a Q ring?
This will be in a FSA SL-K BB30 is there a 22 sprocket for this setup?

Sorry, I didn't know how to paste the site but check out rotorbikeusa.com.
They site is kind of confusing. They sell a inner ring that fits the 64mm standard you should have..it's spendy at $57 and is a 23 but feels like a 21 at TDC. :thumbsup:
There are reviews on mtbr. check reviews check the letter r Q rings will show up at top of page!

http://www.cart32hostingred.com/cgi...NTSLLC-store?catid=256998670&prodid=153542180

Also you can do a 22/36 set-up up front...probably need to play with front derail tho!

 

[motoadve]

Thanks a lot

 

[AKamp]

34/22=1.545
36/24=1.5

Actually shouldn't it be 22/34=.647
24/36=.667

So for a 26 inch wheeled bike every revolution of the crank will make you go 1.6 inches farther for the 24/36 I don't know if you will notice that or not.

 

[shiggy]

Will the 0.45 difference be noticeable you think?

No. You would not notice any difference at all. The difference in distance traveled per pedal stroke is less than two inches.

 

[blcman]

./.....But love to ride and also need to, if I dont ride for a week, my knee gets very painfull. But if I pull strong gears I get pain too.

Wow, I just read this! It's like looking in a mirror (metaphysically speaking lol)
As for Shiggy's and Akamp's math...you guys are right!....just seems like it would be a larger difference!
It then must just be psychological what my knees feel! :thumbsup:

 

[derby]

Actually shouldn't it be 22/34=.647
24/36=.667

So for a 26 inch wheeled bike every revolution of the crank will make you go 1.6 inches farther for the 24/36 ...

Exactly!

It sounds like motoadve wants the lowest option possible, for good reason.

 

[shiggy]

Exactly!

It sounds like motoadve wants the lowest option possible, for good reason.

And it is possible to go lower than either of his options with off the shelf parts