The Rohloff Chain tensioner is a spring loaded device that maintains chain tension in a single driveline application. It should be used with the Rohloff SPEEDHUB 500/14 when horizontal adjustment of the hub is unattainable or in rear suspension applications where the distance between the bottom bracket and the rear axle change throughout the range of travel. The Rohloff Chain tensioner is an excellent choice for any conversion to a single driveline system (i.e. SPEEDHUB 500/14 or singlespeed).
The Rohloff Chain tensioner is easy to install, it simply mounts to the existing derailleur hanger of the frame. Spacers are used for lateral adjustability. For the quick wheel removal the Rohloff Chain tensioner swings back when pulling the wheel out of the dropouts. The Rohloff Chain tensioner has a tensioning capacity of 10 chain links which is sufficiant even for long travel rear suspensions.
On dropouts thinner than 7mm, the use of the 13 tooth sprocket and all splined sprockets (chainline 58mm) will require the use of the longer mounting bolt. This is available separately.
Alongside the regular chain-tensioner describe above (Art. #8250), we also offer the 'Chain Tensioner -10' (Art. #8250-10). This chain tensioner is required for:
- Rohloff SPEEDHUB XXL units (190 & 197mm)
- Rohloff SPEEDHUBs mounted in frames using a Shimano direct mount derailleur hanger
- Alternative transmissions (IGHs / Singlespeed applications etc.) that utilize a narrower chainline than a Rohloff SPEEDHUB.
A chainline from 42-50mm (LA=0) and 50-58mm (LA=7.5) is achieveable with this component depending upon derailleur hanger/dropout thickness (Max = 8mm) and lateral alignment (LA).
The Chain tensioners can be ordered complete or in separate parts under the following Article numbers:
|Chain tensioner (110g)||8250|
|Chain tensioner -10||8250-10|
|Chain tensioner jockey wheels||8251|
|Chain tensioner spring||8248|
|Chain tensioner mounting bolt||8253|
|Long mounting bolt||8255|
|Chain tensioner hanger plate||8254|
Further information over the Chain tensioner can be found under downloads.