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:

Crank:	(only used for gain ratios)
IGBB:	Bosch motor with tiny chainring none Bionicon B-Boxx FSA Metropolis Patterson Schlumpf High-Speed-Drive Schlumpf Mountain-Drive Schlumpf Speed-Drive Truvativ HammerSchmidt Pinion P1.6 Pinion P1.9 CR Pinion P1.9 XR/C1.9XR Pinion P1.12/C1.12 Pinion P1.18
Rings:
Cogs:
IGH:	none === Classified === Powershift === Enviolo === City (CVT) Trekking & Heavy Duty (CVT) === Kindernay === 14-speed XIV 7-speed VII === NuVinci === N171 (CVT) N330 (CVT) N360 (CVT) N380 (CVT) === Rohloff === 14-speed Speedhub === Sachs === 12-speed Elan (discontinued) === Shimano === 11-speed Alfine 3-speed Nexus (and SRAM/Sachs) 4-speed Nexus 5-speed Nexus (SG-C7000-5D for e-bike) 7-speed Nexus 8-speed Alfine & Nexus === SRAM === 2-speed Automatix 3-speed Dual Drive 7-speed Spectro 9-speed (discontinued) 9-speed i-Motion === Sturmey Archer === 2-speed A2 (automatic) (ratios = a guess) 2-speed kick-shift hubs (S2, S2C, B2C) 3-speed ASC fixed-gear 3-speed AW 3-speed BSR (Brompton 3spd) 3-speed BWR (Brompton 6spd) 5-speed hubs (pre-2009) 5-speed rotary-shift hubs (RX series) 5-speed S-RF5 (Brompton-compatible) 8-speed (S80, discontinued) 8-speed (X-RK8, X-RF8, X-RD8)
Tire:	203: 12-1/2 x 2-1/4 (905mm) 305: 16 x 1.75 (1200mm) 349: 16 x 1-3/8 (1315mm) 406: 20 x 1.1 (1451mm) 406: 20 x 1.35 (1480mm) 406: 20 x 1.5 (1493mm) 406: 20 x 1.75 (1520mm) 406: 20 x 2.0 (1573mm) 406: 20 x 4 (cargo trike!) (1753mm) 507: 24 x 2.0 (1920mm) 559: 26 x 1.25 (1953mm) 559: 26 x 1.5 (2010mm) 559: 26 x 1.75 (2030mm) 559: 26 x 2.0 (2055mm) 559: 26 x 2.35 (2108mm) 559: 26 x 3.7 (Pugsley/Mukluk) (2250mm) 559: 26 x 4.8 (Moonlander) (2290mm) 571: 650 x 23c (1938mm) 584: 650 x 38b (2040mm) 584: 650 x 42b (2060mm) 584: 650 x 47b (2145mm) 584: 27.5 x 2.3" 58-584 (2165mm) 584: 27.5x2.35" (2185mm) 584: 27.5x3.0" (2200mm) 622: 700 x 23 (2096mm) 622: 700 x 25 (2105mm) 622: 700 x 26 (2108mm) 622: 700 x 28 (2136mm) 622: 700 x 32 (2155mm) 622: 700 x 35 (2168mm) 622: 700 x 40 (2200mm) 622: 29 x 2.1 (2288mm) 622: 29 x 2.3 (2326mm) 622: 29 x 3 (Krampus) (2350mm) 630: 27 x 1-1/4 (2160mm)

Drivetrain 2:

Crank:	(only used for gain ratios)
IGBB:	Bosch motor with tiny chainring none Bionicon B-Boxx FSA Metropolis Patterson Schlumpf High-Speed-Drive Schlumpf Mountain-Drive Schlumpf Speed-Drive Truvativ HammerSchmidt Pinion P1.6 Pinion P1.9 CR Pinion P1.9 XR/C1.9XR Pinion P1.12/C1.12 Pinion P1.18
Rings:
Cogs:
IGH:	none === Classified === Powershift === Enviolo === City (CVT) Trekking & Heavy Duty (CVT) === Kindernay === 14-speed XIV 7-speed VII === NuVinci === N171 (CVT) N330 (CVT) N360 (CVT) N380 (CVT) === Rohloff === 14-speed Speedhub === Sachs === 12-speed Elan (discontinued) === Shimano === 11-speed Alfine 3-speed Nexus (and SRAM/Sachs) 4-speed Nexus 5-speed Nexus (SG-C7000-5D for e-bike) 7-speed Nexus 8-speed Alfine & Nexus === SRAM === 2-speed Automatix 3-speed Dual Drive 7-speed Spectro 9-speed (discontinued) 9-speed i-Motion === Sturmey Archer === 2-speed A2 (automatic) (ratios = a guess) 2-speed kick-shift hubs (S2, S2C, B2C) 3-speed ASC fixed-gear 3-speed AW 3-speed BSR (Brompton 3spd) 3-speed BWR (Brompton 6spd) 5-speed hubs (pre-2009) 5-speed rotary-shift hubs (RX series) 5-speed S-RF5 (Brompton-compatible) 8-speed (S80, discontinued) 8-speed (X-RK8, X-RF8, X-RD8)
Tire:	203: 12-1/2 x 2-1/4 (905mm) 305: 16 x 1.75 (1200mm) 349: 16 x 1-3/8 (1315mm) 406: 20 x 1.1 (1451mm) 406: 20 x 1.35 (1480mm) 406: 20 x 1.5 (1493mm) 406: 20 x 1.75 (1520mm) 406: 20 x 2.0 (1573mm) 406: 20 x 4 (cargo trike!) (1753mm) 507: 24 x 2.0 (1920mm) 559: 26 x 1.25 (1953mm) 559: 26 x 1.5 (2010mm) 559: 26 x 1.75 (2030mm) 559: 26 x 2.0 (2055mm) 559: 26 x 2.35 (2108mm) 559: 26 x 3.7 (Pugsley/Mukluk) (2250mm) 559: 26 x 4.8 (Moonlander) (2290mm) 571: 650 x 23c (1938mm) 584: 650 x 38b (2040mm) 584: 650 x 42b (2060mm) 584: 650 x 47b (2145mm) 584: 27.5 x 2.3" 58-584 (2165mm) 584: 27.5x2.35" (2185mm) 584: 27.5x3.0" (2200mm) 622: 700 x 23 (2096mm) 622: 700 x 25 (2105mm) 622: 700 x 26 (2108mm) 622: 700 x 28 (2136mm) 622: 700 x 32 (2155mm) 622: 700 x 35 (2168mm) 622: 700 x 40 (2200mm) 622: 29 x 2.1 (2288mm) 622: 29 x 2.3 (2326mm) 622: 29 x 3 (Krampus) (2350mm) 630: 27 x 1-1/4 (2160mm)

Options:

Units	gear inches metres development gain ratios
Labels	none tooth counts gear numbers gear ratio units

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