Technic

Selecting the correct gear system is a decisive factor for cycling enjoyment. The ratio between the lowest and highest gears (the overall range) determines the degree of incline that can be ridden and the maximum achievable speed on the plain. The difference between two neighbouring gears (the increment) determines the comfort and ease with which your speed and momentum can be maintained over different terrains.

When the overall range, gear count and the increments conform, riding enjoyment increases as the gear system is effortless and intuitive to use in all situations, including whilst stationary.

The high shifting speed and effortless gear selection through one simple twist of a shifter (regardless of whether the cyclist is stationary) is simply unachievable for a derrailleur system.

  SPEEDHUB 500/14 for 135mm SPEEDHUB 500/14 for A12-142mm SPEEDHUB 500/14 for A12-148mm
Number of gears: 14 14 14
Gear increments: even 13,6% even 13,6% even 13,6%
Range of gears: 526% 526% 526%
Frame spacing/ O.L.D.: 135mm 142mm 148mm (BOOST)
Number of spoke holes: 32/36 32/36 32/36
Spoke flange spacing: 58mm, symmetrical 58mm, symmetrical 58mm, symmetrical
Spoke hole PCD: Ø100mm Ø100mm Ø100mm
Spoke hole diameter: Ø2,7mm Ø2,7mm Ø2,7mm
Spoke flange thickness: 3,2mm 3,2mm 3,2mm
Axle diameter at dropout: 9,8mm with Adapter 12mm /7mm with Adapter 12mm /7mm
CC axle - overall length: 147mm 142mm 148mm
CC axle - internal diameter: Ø5,5mm, for quick release lever for M7 securing bolts for M7 securing bolts
TS axle - overall length: 171mm (bei langen Achszapfen 179mm) --XX-- --XX--
TS axle thread: M10x1 --XX-- --XX--
Brake rotor center diameter: Ø52mm Ø52mm Ø52mm
Brake rotor mounting bolt PCD: Ø65mm Ø65mm Ø65mm
Brake disc mounting bolts: 4 x M8x0,75 4 x M8x0,75 4 x M8x0,75
Distance between dropout and center disc mount: 16,3mm (IS 1999) 16,3mm (IS 1999) 16,3mm (IS 1999)
Weight: 1700g (CC), 1800g (CC EX), 1825g (CC DB)    
Oil volume: 25ml max. 25ml max. 25ml max.
Sprocket thread: M34x6 P1, tolerance 6H M34x6 P1, tolerance 6H M34x6 P1, tolerance 6H
Sprocket type: for bicycle chain 1/2" x 3/32" (ISO Nr. 082) for bicycle chain 1/2" x 3/32" (ISO Nr. 082) for bicycle chain 1/2" x 3/32" (ISO Nr. 082)
Number of sprocket teeth: 16 (optional: 13, 15 and 17) 16 (optional: 13, 15 and 17) 16 (optional: 13, 15 and 17)
Chainline: (Sprocket): 54mm (58mm with 13T Sprocket) 54mm (58mm with 13T Sprocket) 51mm (55mm with 13T Sprocket)
Chainline: (Splined Sprocket): 57mm 58mm 54mm
Beltline Gates Carbondrive beltline: 54,75mm 54,75mm 52mm
Smallest permittable gear ratios (normal) Chain: 32/17, 30/16, 28/15, 26/13 (transmission factor ~1,9) 32/17, 30/16, 28/15, 26/13 (transmission factor ~1,9) 32/17, 30/16, 28/15, 26/13 (transmission factor ~1,9)
(Riders over 100kg/tandem) Chain: 42/17, 40/16, 38/15, 34/13 (transmission factor ~2,50) 42/17, 40/16, 38/15, 34/13 (transmission factor ~2,50) not authorized for tandem use 42/17, 40/16, 38/15, 34/13 (transmission factor ~2,50) not authorized for tandem use
Smallest permissible belt sprocket ratios (26”) Gates Drive: 39/19, 39/20, 42/22, 46/24, (transmission factor ~1,9) 39/19, 39/20, 42/22, 46/24, (transmission factor ~1,9) 39/19, 39/20, 42/22, 46/24, (transmission factor ~1,9)
(Riders over 100kg/tandem) Gates Drive: 46/19, 50/20, 55/22, 60/24 (transmission factor ~2,50) 46/19, 50/20, 55/22, 60/24 (transmission factor ~2,50) not authorized for tandem use 46/19, 50/20, 55/22, 60/24 (transmission factor ~2,50) not authorized for tandem use
Maximum input torque: 130Nm 130Nm 130Nm
Gear control: Twist shifter Twist shifter Twist shifter
Twist shifter angle per gear change/over all: 21°/273° 21°/273° 21°/273°
Gear control transfer: via two shifter cables (pull-pull system) via two shifter cables (pull-pull system) via two shifter cables (pull-pull system)
Shifter cable movement per gear change/over all: 7,4mm/96,2mm 7,4mm/96,2mm 7,4mm/96,2mm
  SPEEDHUB 500/14 XL for 170mm Fatbike SPEEDHUB 500/14 XL for A12-177mm Fatbike SPEEDHUB 500/14 XXL for 190mm Fatbike SPEEDHUB 500/14 XXL for A12-197mm Fatbike
Number of gears: 14 14 14 14
Gear increments: even 13,6% even 13,6% even 13,6% even 13,6%
Range of gears: 526% 526% 526% 526%
Frame spacing/ O.L.D.: 170mm 177mm 190mm 197mm
Number of spoke holes: 32 32 32 32
Spoke flange spacing: 93mm, symmetrical 93mm, symmetrical 93mm, symmetrical 93mm, symmetrical
Spoke hole PCD: Ø100mm Ø100mm Ø100mm Ø100mm
Spoke hole diameter: Ø2,7mm Ø2,7mm Ø2,7mm Ø2,7mm
Spoke flange thickness: 3,2mm 3,2mm 3,2mm 3,2mm
Axle diameter at dropout: 9,8mm with Adapter 12mm /7mm 9,8mm with Adapter 12mm /7mm
CC axle - overall length: 182mm 177mm 202mm 197mm
CC axle - internal diameter: Ø5,5mm, for quick release lever for M7 securing bolts Ø5,5mm, for quick release lever for M7 securing bolts
TS axle - overall length: 206mm (bei langen Achszapfen 214mm) --XX-- --XX-- --XX--
TS axle thread: M10x1 --XX-- --XX-- --XX--
Brake rotor center diameter: Ø52mm Ø52mm Ø52mm Ø52mm
Brake rotor mounting bolt PCD: Ø65mm Ø65mm Ø65mm Ø65mm
Brake disc mounting bolts: 4 x M8x0,75 4 x M8x0,75 4 x M8x0,75 4 x M8x0,75
Distance between dropout and center disc mount: 16,3mm (IS 1999) 16,3mm (IS 1999) 26,3mm (with Fatbone/Monkeybone-10) 26,3mm (with Fatbone/Monkeybone-10)
Weight: 1980g (CC DB)   1995g (CC DB OEM2)  
Oil volume: 25ml max. 25ml max. 25ml max. 25ml max.
Sprocket thread: M34x6 P1, tolerance 6H M34x6 P1, tolerance 6H M34x6 P1, tolerance 6H M34x6 P1, tolerance 6H
Sprocket type: for bicycle chain 1/2" x 3/32" (ISO Nr. 082) for bicycle chain 1/2" x 3/32" (ISO Nr. 082) for bicycle chain 1/2" x 3/32" (ISO Nr. 082) for bicycle chain 1/2" x 3/32" (ISO Nr. 082)
Number of sprocket teeth: 16 (optional: 13, 15 and 17) 16 (optional: 13, 15 and 17) 16 (optional: 13, 15 and 17) 16 (optional: 13, 15 and 17)
Chainline: (Sprocket): 71,5mm(75mm with 13T sprocket) 71,5mm(75mm with 13T sprocket) 71,5 mm (75mm with 13T sprocket) 71,5 mm (75mm with 13T sprocket)
Chainline: (Splined Sprocket): 75,5mm 75,5mm 75,5mm 75,5mm
Beltline Gates Carbondrive beltline: 72,25mm 72,25mm 72,25mm 72,25mm
Smallest permittable gear ratios (normal) Chain: 32/17, 30/16, 28/15, 26/13 (transmission factor ~1,9) 32/17, 30/16, 28/15, 26/13 (transmission factor ~1,9) 32/17, 30/16, 28/15, 26/13 (transmission factor ~1,9) 32/17, 30/16, 28/15, 26/13 (transmission factor ~1,9)
(Riders over 100kg/tandem) Chain: 42/17, 40/16, 38/15, 34/13 (transmission factor ~2,50) XL not authorized for tandem use 42/17, 40/16, 38/15, 34/13 (transmission factor ~2,50) XL not authorized for tandem use 42/17, 40/16, 38/15, 34/13 (transmission factor ~2,50) XXL not authorized for tandem use 42/17, 40/16, 38/15, 34/13 (transmission factor ~2,50) XXL not authorized for tandem use
Smallest permissible belt sprocket ratios (26”) Gates Drive: 39/19, 39/20, 42/22, 46/24 (transmission factor ~1,9) 39/19, 39/20, 42/22, 46/24 (transmission factor ~1,9) 39/19, 39/20, 42/22, 46/24 (transmission factor ~1,9) 39/19, 39/20, 42/22, 46/24 (transmission factor ~1,9)
(Riders over 100kg/tandem) Gates Drive: 46/19, 50/20, 55/22, 60/24 (transmission factor ~2,50) XL not authorized for tandem use 46/19, 50/20, 55/22, 60/24 (transmission factor ~2,50) XL not authorized for tandem use 46/19, 50/20, 55/22, 60/24 (transmission factor ~2,50) XXL not authorized for tandem use 46/19, 50/20, 55/22, 60/24 (transmission factor ~2,50) XXL not authorized for tandem use
Maximum input torque: 130Nm 130Nm 130Nm 130Nm
Gear control: Twist shifter Twist shifter Twist shifter Twist shifter
Twist shifter angle per gear change/over all: 21°/273° 21°/273° 21°/273° 21°/273°
Gear control transfer: via two shifter cables (pull-pull system) via two shifter cables (pull-pull system) via two shifter cables (pull-pull system) via two shifter cables (pull-pull system)
Shifter cable movement per gear change/over all: 7,4mm/96,2mm 7,4mm/96,2mm 7,4mm/96,2mm 7,4mm/96,2mm
Inner gear ratios (hub rotation per sprocket rotation)

Innere Getriebeübersetzung ÜGetr. = 1/i = Nabendrehzahl pro Ritzeldrehzahl der Rohloff SPEEDHUB

Gear 1 2 3 4 5 6 7 8 9 10 11 12 13 14
IGR 0,279 0,316 0,360 0,409 0,464 0,528 0,600 0,682 0,774 0,881 1,000 1,135 1,292 1,467