Karl's visual drivetrain comparison tool

Compare two different bicycle drivetrains side-by-side. Supports any number of chainrings and cogs, as well as many popular internally-geared hubs. Results can be displayed as gear inches, metres development, or Sheldon Brown's gain ratios.

Drivetrain 1:

Tire:
Crank:  (only used for gain ratios)
IGBB:
Rings:
Cogs:
IGH:

Drivetrain 2:

Tire:
Crank:  (only used for gain ratios)
IGBB:
Rings:
Cogs:
IGH:

Options:

Units
Labels

cassette cog toothcount data

(a work in progress, but you're goona like it)


Internal Gearing Info

expand/collapse
Drivetrain 1:
Internally-Geared Hub
Shimano 11-speed Alfine
Total Range: 408.5%
Incremental range: 308.5%
Minimum primary gear ratio allowed: 0.000:1
1
0.527
2
0.681
3
0.770
4
0.878
5
0.995
6
1.134
7
1.292
8
1.462
9
1.667
10
1.888
11
2.153
29.2% 13.1% 14% 13.3% 14% 13.9% 13.2% 14% 13.3% 14%
Drivetrain 2:
Internally-Geared Hub
Shimano 8-speed Alfine & Nexus
Total Range: 306.5%
Incremental range: 206.5%
Minimum primary gear ratio allowed: 1.700:1
1
0.527
2
0.644
3
0.748
4
0.851
5
1.000
6
1.223
7
1.419
8
1.615
22.2% 16.1% 13.8% 17.5% 22.3% 16% 13.8%
visual drivetrain comparison graphic