SRAM / Sachs Internally Geared Hubs
Above left is a SRAM Spectro 7 hub sold by us with added lubrication after 2 1/2 years riding 4 days per week.
On the right is the same guts cleaned and relubricated.
We recommend doing this service yearly, but this is a testament to proper lubrication.
This hub would have been rusty and worn if only the factory lubrication had been used.
We have imported all the repair & common wear parts for the SRAM Spectro 7 & Pentasport 5 speed hubs.
F&S Torpedo 2-Speed (underdrive)
SRAM i-Motion 3 with Coaster Brake
The SRAM hub is rim and ISO 6-bolt disc compatable.
If you use it with a rim brake, make sure you install the fancy dust cap as the disc rotor bolt holes go all the way through! We recommend installing, instead, six M5 "water bottle"
bolts.
A benefit of this design is that the hub internals can easily be oiled with Phil Wood oil by removing one bolt!
Note: The guts of the SRAM i-Motion 9 hubs are not supposed to be disassembled. Besides the entire assembly, wear parts 6, 7, 8, & 9 are available which we stock. The single use nut is crushed upon installation. Removal destroys it. To clean this hub we recommend a kerosene bath followed by drying and re-lubing with Phil Wood Tenacious Oil. We use blue marine grease on the pinions and the bearings.
SRAM i-Motion 9
Damaged pawl loop spring with Rock Shox (a suitable replacement).
Sachs Huret Orbit 2x7 Speed with Drum
Uses Sachs freewheel cogs on driver (similar to Dual Drive cassette hub)
The picture on the left is original factory lube after approx. X miles. On the right is after we overhauled it.
Note: Before final assembly into the hub shell we coat and inject the assembly with Phil Wood Tenacious Oil.
The blue grease you see is Sta-Lube Boat Trailer Wheel Bearing Grease.
Grease should only be used on the gears and bearings, never on sliding keys or pawl ratchets.
SRAM Dual Drive (clickbox Verson)
SRAM Dual Drive II (clickbox Verson)
The main difference between the Dual Drive and Dual Drive II is the driver.
More recent hubs have part numbers 13, 14 and 17 in the diagram above unified as seen in the diagram below.
Also washer #6 in the above diagram is sometimes much larger in newer hubs. It is listed as #7 in the below diagram and does not appear larger, but it is!
The driver cartridge bearing is visible as a separate part in the newer drawing below.
Sometimes the bearing is retained with a circlip and sometimes it is just a press fit.
It is easily replaceable with any 6901 bearing, readily available at your local bike shop.
Sachs 3 x 7
Sachs Torpedo Automatic 2-Speed
Sachs Duomatic (2 speed, Kick-Back with Coaster Brake)
Sachs Torpedo 3 Speed Model 515 with Coaster Brake)
SRAM Spectro P5 with Drum Brake
SRAM Spectro P5 without Brake
SRAM P5 Coaster Brake
SRAM Spectro P5 with Coaster Brake
A SRAM Spectro S7 with Drum Brake
Sachs Spectro S7 (minor differences but part interchangeable)
SRAM Sparc 5 Speed Electric Assist
SRAM Sparc 5 Speed Electric Assist
SRAM Sparc 5 Speed Electric Assist