Rohloff SPEEDHUB 500/14  A12 DB OEM2 32H

Rohloff SPEEDHUB 500/14 A12 DB OEM2 32H

Rohloff SPEEDHUB 500/14  A12 DB PM 32H

Rohloff SPEEDHUB 500/14 A12 DB PM 32H

Rohloff SPEEDHUB 500/14 A12 DB OEM2 36H

For frames with thru-axle and international standard disc brake mounts (IS2000).
Out of stock

Black: Backorder

Silver: Backorder

Red: Backorder

Kit includes:

  • Hub with Hub-cap with mount for special brake rotors
  • Twist shifter
  • Shifter cables
  • External gear mech
  • OEM2 axleplate to anchor output torque to the rearmost mounting hole of ISO2000 brake caliper mount.

Attention!  This is not a thru-axle hub, but thru-axle compatible.

The A12 is a special gearhub.
Thru-axle frames are different by almost every brand. This is the reason why measurements have to be made on the frame. We at Booda Bike have the permission and the tools to do that. The process is made in Budapest in our headquarter. Of course we can help in the transporting. 

Buying process

  1. Measurements have to be made on the frame. Your frame has to be transported to our headquarter in Budapest, Hungary. Please get in contact with us. Contact infos can be found in the contact page. 
  2. When the frame is in our office, we measure it. The datas are going to be sent to the Rohloff HQ. 
  3. Rohloff is sending the appropriate hub to us. 
  4. As the final step we will notify you and send the frame with the Rohloff A12 gearhub back. 
  5. Enjoy the ride!

Internal gear ratio

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



Number of gears: 14
Gear increments: even 13.6%
Range of gears: 526%
Frame spacing/ O.L.D.: 135mm
Number of spoke holes: 32/36
Spoke flange spacing: 58mm
Spoke hole PCD: Ø100mm
Spoke hole diameter: Ø2.7mm
Spoke flange thickness: 3.2mm
Axle diameter at dropout: 9.8mm
Axle - overall length: 147mm
CC axle - internal diameter: Ø5,5mm, for quick release lever
TS axle - overall length: 171mm
TS axle thread: M10x1
Brake rotor center diameter: Ø52mm
Brake rotor mounting bolt PCD: Ø65mm
Brake disc mounting bolts: 4 x M8x0.75
Distance between dropout and center disc mount: 16.3mm (IS1999)
Weight: 1700g (CC), 1800g (CC EX), 1825g (CC DB)
Oil volume: 25ml max.
Sprocket thread: M34x6 P1, tolerance 6H
Sprocket type: with bike chain 1/2″ x 3/32″ (ISO Nr. 082)
Number of sprocket teeth: 16 (optional: 13, 15 and 17)
Chainline: (Sprocket): 54mm (58mm with 13tooth sprocket)
Beltline Gates Carbondrive beltline: 54.75mm
Smallest permittable gear ratios (normal) Chain: 38:17, 34:16, 30:15, 28:13 (transmission factor 2.1)
(Riders over 100kg/tandem) Chain: 42:17, 40:16, 38:15, 34:13 (transmission factor 2.5)
Smallest permissible belt sprocket ratios (26”) Gates Drive: 42/19,42/20, 46/22, 55/24 (transmission factor ~ 2.10)
(Riders over 100kg/tandem) Gates Drive: 46/19,50/20,55/22,60/24 (transmission factor ~ 2.50)
Maximum input torque: 100Nm
Gear control: Twist shifter
Twist shifter angle per gear change/over all: 21°/273°
Gear control transfer: via two shifter cables (pull-pull system)
Shifter cable movement per gear change/over all: 7.4mm/96.2mm
More Information
Weight 1.8250
Category Gear hub
Gears 14 speed
Frame spacing (O.L.D.) 142mm
Torque anchoring OEM2
Braking system Disc brake
Gearmechanism External gear mechanism
Axle system 12 thru-axle systems
Hole number 36
Brand Rohloff