With its patented Super-Link-Technology and its high quality materials the Rohloff S-L-T 99, used by professionals and amateurs, for racing and leisure, is the ideal chain to cope with the great strains imposed by cycling today. It runs smoothly and dependably in combination with all 8- and 9-speed gear shifting systems, even under extreme conditions. With the new, more technically advanced drivetrain developments, chains, chainrings and cassettes now last substantially longer, reducing the overall costs. The Rohloff S-L-T 99 is the perfect complement to all transmission systems.
Rohloff has manufactured the S-L-T 99 chain since 1988, since then it has been to the Tour de France and World Championship bike races. Many consider the S-L-T 99 the finest chain available. Its features include:
- Super Link Technology™ specially designed trichoidal shape of the integral pin link bushings increases durability.
- Nickel plated link plates.
- Lateral flexibility provides silent running and soft gear shifting.
- Pentagonal riveted pins for ultimate strength.
- Available in 8 and 9 speed, road and MTB, also singlespeed version.
- Fully compatible with Shimano HG and IG systems.
The Rohloff S-L-T 99 chain is available in the following configurations:
|Description||Part No.||Designed for||No.of links||Width (mm)|
|Road||1000||8 speed||114 links||7.1|
|Road||1600||9 speed||114 links||6.8|
|MTB||1400||8 speed||116 links||7.1|
|MTB||1700||9 speed||116 links||6.8|
Super-Link-Technology, the best materials and the experience of thousands of kilometres in the roughest conditions make the Rohloff S-L-T 99 the most durable chain available.
Light, but extremely strong
At 278 g (100 links) the Rohloff S-L-T 99 is not only one of the lightest chains but because of its Super-Link- Technology it is the strongest in its class.
Sprockets and chain rings last longer
The large contact areas in the links (due to the Super-Link-Technology) almost eliminate chain elongation. This reduces the wear of the whole drive train, especially under heavy load.
Perfect gear shifting
Its unbeaten sideways flexibility ensures silent running and soft gear shifting. Even radical shifting manoeuvres or extreme diagonal running are possible with the Rohloff S-L-T 99.
All Rohloff S-L-T 99 chains operate precisely and flawlessly, shifting quickly and almost silently on all modern derailleur shifting systems. The 8 and 9 speed road, ATB and the Trial are fully compatible with Shimano HG and IG systems.
Super-Link-Technology (Patent No. US 5,140,806 and EP 0396701)
The special feature of this technology lies in the trichoide form of the integral bushings on the pin link plates which can basically be described as a regular triangle with curved sides. In contrast to the contact area of conventional chains stressed in a straight line, here the rollers (Detail A) and the pins (Detail B) rest against the integral bushings over a surface area of 120 degrees in the direction of the force. Therefore, the maximum force of pressure is only a fraction in comparison with other chains, increasing the durability of the Rohloff S-L-T 99 substantially.
On the opposite side, there is enough space created between pin and integral bushing to allow the pin to move up to 2 degrees sideways (Detail B). Because of specially formed pin link plates (the ones with the Rohloff logo) the maximum torsional deflection is limited to 90 degrees per meter. This sideways flexibility guarantees very quick and precise gear shifting with all systems, especially IG, Hyperglide, Superglide, MicroDrive and CompactDrive. Thanks to the large contact area of the rollers and pins, the construction is extremely robust with minimal distortion or flattening under heavy load. Unlike conventional chains which can stretch up to 1/10 mm per link under heavy load, the Rohloff S-L-T 99 keeps its pitch virtually constant. This reduces the wear of the sprockets and chain rings is which is particularly important for expensive light alloy sprockets and IG, Hyperglide, Superglide, MicroDrive and CompactDrive cassettes.
In Pursuit of the Highest Quality
The Rohloff SLT-99 is produced in Germany using only the best materials by a dedicated team of bike enthusiasts. The stainless steel pins and the rollers are plated with an extremely hard chrome-carbide coating to withstand the greatest strain. In order to maintain a constant thickness and to assure a smooth, even sidewall, the rollers are rolled from precision band steel. The nickel-plated surface of the link plates improves the gliding characteristics and protects them against corrosion. Pins and rollers are absolutely rust-proof. Each chain is inspected individually and comes with a specific control number. If necessary, with this number the whole production process can be traced beginning with the raw steel all the way to the final check of the chain.
It is recommended that the Rohloff Revolver chain tool be used to join the chain as this will insure that the chain has been joined to factory tolerances.
Technical Specifications: Rohloff S-L-T 99
- Material: Link plate: high tension carbon steel, nickel-plated.
- Pin: stainless steel, chrome-carbide plated.
- Roller: high tension carbon steel, chrome-carbide plated Type: 1/2″ x 3/32″, super narrow.
- Length: Road 114 links, ATB 116 links, Trial 110 links.
- Width: Road and MTB 9-speed 6.8 mm, Road, MTB 8-speed, and Trial 7.10 mm.
- Weight: Road and MTB 9-speed: 278g/100 links; Road, MTB 8-speed and Trial: 290g/100 links.
- Support of tension: > 11000 N [Newton] (> 1100 kgf).
- Limit of elasticity: > 7000 N (> 700 kgf).
- Side to side flexibility: 2 degrees per link.
- Maximum torsion: < 90 degrees per meter.
- Retention force of pin: Road 9-speed: > 2500 N (250 kgf), Road 8-speed and ATB SH /: > 3000 N (300kgf), Trial: > 3500 N (350kgf)