Rohloff Speedhub 500/14 CC DB OEM – 135 mm - 32H - Silver
The Rohloff Speedhub 500/14 CC DB OEM (135 mm O.L.D.) is the 14-speed gear hub with a quick-release axle, disc brake hub cap and OEM axle plate – for frames built with reinforced, elongated Rohloff-ready dropouts. 14 evenly spaced gears, a 526% range and a sealed oil bath give you a drivetrain that works with a chain or a Gates belt and needs little more than a yearly oil change.
Why the Speedhub 500/14 CC DB OEM?
14 gears, 526% range. The top gear of the CC DB OEM is 5.26 times the lowest – enough for loaded climbs and fast flats. Rohloff gives about 13.6% between neighbouring gears, so every shift feels the same. 
Sealed oil bath. The three planetary gear sets run in oil inside the closed hub shell. Rohloff asks for an oil change every 5000 km or once a year – no cassette and no derailleur to clean. 
Made for a Gates belt. Belt-drive frames are usually built around a Speedhub. Fit a Carbon Drive sprocket on the Rohloff lock-ring carrier for a clean, quiet drivetrain. 
OEM axle plate. For frames with reinforced, elongated vertical dropouts made for the Speedhub. Rohloff supplies OEM versions without a chain tensioner. 
Disc brake hub cap. The DB hub cap carries a special Rohloff 4-hole rotor, 160 to 220 mm, for 1.8, 2.0 or 2.3 mm brake systems. The rotor mounting screws come with the hub. 
Shift standing still. The twist shifter works through two cables, and you can change gear while rolling or stopped – handy at traffic lights or on a steep restart. Ease off the pedal pressure as you shift.
Quick-release axle for vertical dropouts
The CC hub has a hollow axle for a standard quick-release skewer. Wheel removal stays simple: the external gear mech comes off by loosening one screw, then the wheel comes out like any other.
Rohloff supplies this version without a chain tensioner; if your frame has no tensioning of its own, add one (8250).
Belt drive, the BoodaBike way
Belt plus Speedhub is the drivetrain we know best: Massive Bikes began in 2013 fitting Gates belts and gear hubs, and the BoodaBike Pulse is built around exactly that pair.
For a Carbon Drive sprocket Rohloff specifies the lock-ring splined carrier (8540L for the standard or 8540SL for the slim chainline); the 16-tooth sprocket in the kit is for chain use. Tell us your frame and we help you pick the carrier and sprocket.
Who is it for?
- Touring cyclists. Loaded climbs in the low gears and steady cruising on top – with a hub that shrugs off bad weather.
- Riders with quick-release frames. The CC axle takes a standard quick-release skewer, so the wheel comes out without special tools.
- Belt-drive converts. Swap chain and cassette for a clean, quiet Gates belt – the Speedhub is the hub most belt frames are designed around.
- Riders who want low upkeep. No derailleur to adjust or replace; an oil change once a year keeps the gearbox in shape.
Compatibility and specifications
| Model | Rohloff Speedhub 500/14 CC DB OEM |
|---|---|
| Rohloff part numbers | 32-hole: silver 8025, red 8026, black 8027; 36-hole: silver 68025, red 68026, black 68027 |
| Gears / range | 14 gears, 526% total range, three planetary gear sets in an oil bath |
| Axle | Hollow quick-release axle (CC) |
| O.L.D. (rear spacing) | 135 mm |
| Torque support | OEM axle plate – made for frames with reinforced, elongated vertical dropouts that are designed for the Speedhub. |
| Suits | Frames with vertical dropouts and a quick-release rear wheel, with reinforced, elongated Rohloff-ready dropouts |
| Brake | Disc brake (DB) hub cap for a special Rohloff 4-hole rotor (Ø160–220 mm, 1.8 / 2.0 / 2.3 mm); rotor not included |
| Gear mech | External gear mech with twist shifter and two shifter cables; Rohloff also builds this version with the electronic E-14 gear mech (separate article) |
| Belt drive | Gates Carbon Drive compatible with the Rohloff lock-ring splined carrier (8540L / 8540SL) and a Carbon Drive sprocket |
| In the kit | Speedhub 500/14 hub with quick-release axle; disc brake (DB) hub cap for the special Rohloff 4-hole rotor, with rotor mounting screws; external gear mech (transfer box and cable box); OEM axle plate; twist shifter, shifter cables and housing with ferrules; 16-tooth splined sprocket; flange support rings |
| Order separately | Rohloff 4-hole brake rotor that matches your brake (rotor not included; the rotor mounting screws are included); Chain tensioner – not included; needed if the frame has no chain tensioning of its own (Rohloff names horizontal dropouts shorter than 25 mm and full-suspension frames with chain growth) |
| Tandem / cargo | Approved in dedicated T (tandem) or C (cargo) versions, max. 130 Nm input torque – on request |
| Service tool | Sprocket remover tool 8508 (135/142/170/177 mm hubs) |
| Spokes | 32 or 36 holes; spokes with a 2.9 mm head length required |
CC (quick-release) disc-brake versions compared
| CC DB | Standard axle plate, 135 mm. The classic Rohloff setup: the kit comes with the Standard axle plate and the mounting hardware. |
|---|---|
| CC DB OEM – this product | OEM axle plate, 135 mm. Made for frames with reinforced, elongated vertical dropouts that are designed for the Speedhub. |
| CC DB OEM2 | OEM2 axle plate, 135 mm. Anchors the output torque of the hub to the rearmost mounting hole of an IS2000 disc brake mount. |
| CC DB PM | PM axle plate, 135 mm. Anchors the output torque to the rearmost mounting hole of a Postmount disc brake mount, via the PM Bone. |
| CC DB XL | Standard axle plate, 170 mm. The classic Rohloff setup: the kit comes with the Standard axle plate and the mounting hardware. |
| CC DB OEM XL | OEM axle plate, 170 mm. Made for frames with reinforced, elongated vertical dropouts that are designed for the Speedhub. |
| CC DB OEM2 XL | OEM2 axle plate, 170 mm. Anchors the output torque of the hub to the rearmost mounting hole of an IS2000 disc brake mount. |
| CC DB PM XL | PM axle plate, 170 mm. Anchors the output torque to the rearmost mounting hole of a Postmount disc brake mount, via the PM Bone. |
| CC DB OEM2 XXL | OEM2 axle plate, 190 mm. Anchors the output torque of the hub to the rearmost mounting hole of an IS2000 disc brake mount. |
Frequently asked questions
How do I know my frame takes the OEM version?
The OEM axle plate is for frames with reinforced, elongated vertical dropouts made for the Speedhub. Rohloff asks for a photo of the rear, non-drive-side dropout to confirm the right version – send it to us and we check it.
Can I use it with a Gates belt drive?
Yes, in a belt-ready frame. Rohloff specifies the lock-ring splined carrier (8540L standard or 8540SL slim chainline) for Carbon Drive sprockets. We build belt-drive Rohloff bikes ourselves and supply the matching parts.
32 or 36 spoke holes?
Both are available in silver, red and black. Whichever you choose, Rohloff requires spokes with a 2.9 mm long, burr-free head – other head lengths can damage the hub flange. Ask us about the right spokes.
How much maintenance does it need?
An oil change every 5000 km or once a year. Rohloff notes the hub keeps working even if some oil is lost, but delaying the oil change can damage the gears. The warranty is two years from purchase; wear parts such as seals, sprockets, shifter grip rubber and rotors are excluded.
Can it go on a tandem or cargo bike?
Rohloff approves the Speedhub 500/14 for tandem and cargo use in dedicated versions (article suffix T or C), with a maximum input torque of 130 Nm at the hub sprocket. This listing is the standard version – ask us for the T or C version.
About Rohloff
Rohloff AG is based in Fuldatal, Germany, and makes the Speedhub 500/14 – a 14-speed gear hub known for its wide range and its sealed oil bath – together with its shifting parts, axle plates, spokes and service tools.
BoodaBike (Massive Bikes, Budapest) is an official Rohloff service centre trained by Rohloff and an official European distributor of Rohloff hubs and parts. We fit, convert and service Speedhubs and help you choose the right version for your frame.