Sturmey-Archer indicator chain with rod. Screw the rod into the hub and attach the other end of the chain to the gear cable.
The chains differ in rod thickness and rod length, both of which have to match the hub type and the axle length.
We offer several genuine Sturmey-Archer indicator chains as well as the compatible SAI20 replacement.
| Type | Marking | Rod | Hubs (axle length) |
|---|---|---|---|
| HSA125 | I | thick, 49 mm | AW (5¾″), AG, AB, AT3, AT5 (right), TCW and SAB (146 mm), S5, S5.1 (right), S5/2 (right) |
| HSA126 | II | thick, 56 mm | older AW (6¼″), S-RF3 (148 mm), AWC and S3C (152 mm), SAB and TCW (159 mm), S5, S5.1, S5/2 (right; left until August 1988), AT5 (right) |
| HSA315 | III | thick, 59 mm | AW and S-RF3 (163 mm), AWC and S3C (159 mm), X-RD3, AB3, SAB3, TS-RF3 (163 mm), SX-RK3, SX-RB3 (215 mm) |
| HSA316 | IV | thick, 62 mm | AWC, S-RC3(II), TS-RC3 (163 mm), XL-RD3 (177 mm), AT5 and S5/2 (left, until August 1988), S5.1 (left), 5-Star |
| HSA317 | light blue | thin, 59 mm | X-RD5, AB5 (185 mm) |
| HSA490 | red | thin, 67 mm | Sprinter S5, Sprinter Elite, Sprinter S5C, SAB-5, Brompton 5 (until 2000) |
| HSA585 | yellow | thin, 71 mm | X-RC5(W), S-RC5(W/N), XL-RD5(W), X-RD5(W) (175 mm), X-RF5, S-RF5(W) |
| SAI20 | – | thin, 65 mm | replacement for HSA420 (V, 66 mm): AWC(II), S-RC3(II), QS-RC3 and newer AW/S-RF3 (175 mm) |
Which one to choose?
The safest way is to compare it with your old chain. Thick rods carry a Roman numeral (I, II, III etc.) identifying the type. Thin rods have a colour mark on the rod or on the chain instead, for example light blue (HSA317), red (HSA490) or yellow (HSA585). Check the colour in daylight if you can: under artificial light, blue and purple are easily confused. If the mark is not legible, measure the length from the start of the thread to the shoulder before the first chain link.
A slightly shorter or longer chain usually works too, but you will then need to adjust the gears by trying them out rather than by the mark on the rod. Note: single-toggle five-speed hubs (e.g. Sprinter, X-RD5, S-RF5) and the S3X have a spring fixed inside the axle and only take thin rods with a colour mark. A thin rod works in any hub as long as the length is right.
Not compatible with Torpedo/SRAM/Sachs hubs! For those, use the Torpedo/SRAM indicator chain.
- EAN 4710944224177 (HSA125)
- EAN 4710944213195 (HSA126)
- EAN 4710944224184 (HSA126)
- EAN 4710944214277 (HSA315)
- EAN 4710944224627 (HSA315)
- EAN 4710944224221 (HSA316)
- EAN 4710944225716 (HSA317)
- EAN 4710944229356 (HSA490)
- EAN 4710944225723 (HSA585)
- Part number 1560512 (SAI20)
More information about Sturmey-Archer indicator chains: Sheldon Brown, Sturmey-Archer Indicator Spindle Compatibility.