I've played around with different combos of cranks and cassettes for some time now. I've been using a 10 speed 11/36 cassette with my 52/39/28 SL-K crank for the past few months on my Catrike "Black". It's a good compromise between the need for climbing gears and the need for speed. The chain gets a little sloppy when going small/small (11t cog and 28t chainring) but there's no need to go there.
The 28t after market chainring replaced the SL-K 30t chainring. The Driveline Lightest chain guard is a lighten down version of the FSA chain guards Catrike supplies with their trikes. I use it primarily to avoid the usual "you're going to cut someone with that chainring sticking out like that" comments.
Cycle
|
Tire
|
Cassette | Chainrings | Gear Inch Range | ||||
Size
|
||||||||
Actual
|
Large
|
Small
|
Large
|
Middle
|
Small
|
|||
700 Red
|
27.5
|
36
|
11
|
48
|
120.0
|
36.7
|
||
10 speed
|
39
|
97.5
|
29.8
|
|||||
Marathon
|
24
|
60.0
|
18.3
|
|||||
Racer
|
||||||||
700 Black
|
26.7
|
36
|
11
|
52
|
126.2
|
38.6
|
||
10 speed
|
39
|
94.7
|
28.9
|
|||||
Tire-Ultremo
|
28
|
68.0
|
20.8
|
|||||
