Three-Speed Hub Parts

Fulcrum Sleeve Click here for a parts diagram of the Sturmey-Archer AW hub.

Use the point of a pencil to screw it in! Click here for a parts diagram of the Sturmey-Archer AW hub.

This is the coil spring that fits over the axle to make the hub shift to higher gears. The little cap that is sometimes found on one end of this spring is not needed. Click here for a parts diagram of the Sturmey-Archer AW hub.

Indicator Spindle (chain) - MK1 model This is the part with the little chain that comes out the end of the axle. This is a frequently replaced, easily damaged part. The MK1 works with almost all Sturmey-Archer hubs. Click here for a parts diagram of the Sturmey-Archer AW hub.

This is the part the clutch spring presses against. The axle key fits into a pair of notches in this part. Very old Sturmey-Archer hubs had a two-piece assembly for this, but the one-piece version can replace that. Click here for a parts diagram of the Sturmey-Archer AW hub.

This is a commonly replaced part, the sliding key that the indicator spindle screws into. Click here for a parts diagram of the Sturmey-Archer AW hub.

This is a commonly replaced part. The 4 ends can get worn round where they drive the pinion pins in high gear, causing slippage. If this happens, you probably need new pinion pins too. Click here for a parts diagram of the Sturmey-Archer AW hub.

These essential washer incorporate serrations to keep the axle from slipping forward, and also features tabs that keep the axle from rotating in the frame due to pedaling torque. If you're using a Sturmey-Archer hub on a newer frame made for a wider axle, you need the HMW494 with 9.5 mm tabs instead. The HMW155 with 7.9 mm tabs fits the narrow axle slots of bikes originally intended for Sturmey-Archer hubs. Click here for a parts diagram of the Sturmey-Archer AW hub.

AW hub uses 2 pairs of these. Click here for a parts diagram of the Sturmey-Archer AW hub.

OUT OF STOCK - NO ETA Axle, 6 1/4 inch with sun pinion Sturmey-Archer AW hubs.

These are the pawls that fit in the planet cage, and drive the hub when low gear is selected. Click here for a parts diagram of the Sturmey-Archer AW hub.

Pawl Spring. Each hub uses 2 pair of these. Click here for a parts diagram of the Sturmey-Archer AW hub.

These essential washer incorporate serrations to keep the axle from slipping forward, and also features tabs that keep the axle from rotating in the frame due to pedaling torque. The HMW155 with 7.9 mm tabs fits the narrow axle slots of bikes originally intended for Sturmey-Archer hubs. If you're using a Sturmey-Archer hub on a newer frame made for a wider axle, you need the HMW494 with 9.5 mm tabs instead. Click here for a parts diagram of the Sturmey-Archer AW hub.

Sold each. Two are needed. Click here for a parts diagram of the Sturmey-Archer AW hub.

Click here for a parts diagram of the Sturmey-Archer AW hub.

3mm thick. Unique thread size, nothing else fits. Shown with left axle nut for comparison Click here for a parts diagram of the Sturmey-Archer AW hub.

Unique thread size, nothing else fits. Shown with right axle nut for comparison Click here for a parts diagram of the Sturmey-Archer AW hub.

Unique thread size, nothing else fits. Shown with left (plain) nut for comparison Click here for a parts diagram of the Sturmey-Archer AW hub.

Use a thin screwdriver to install/remove this. After installation, use a hammer and punch to ensure that it is properly seated. Click here for a parts diagram of the Sturmey-Archer AW hub.

Two of these go onto the driver along with the sprocket and the sprocket dust cap. The spacers may be re-arranged to allow you to fine-tune the chain line. These spacers are also sometimes used under the fixed cup of a bottom bracket, or under a thread-on freewheel or track sprocket, to correct chainline or other problems. Click here for a parts diagram of the Sturmey-Archer AW hub.

This essential washer incorporates two tabs that secure the wench flats of the right side cone, so that it will stay in adjustment. The right cone adjustment is quite critical. With the left cone slack, the right one should be tightened finger tight, then backed off 1/2 turn, plus as much more as is needed to get the flats to line up with this washer's tabs. Click here for a parts diagram of the Sturmey-Archer AW hub.

Axle spacing washer 3.2 mm (1/8 inch).

Pulley Assembly Seat Tube (standard) 1 1/8" For illustration, see our Sturmey-Archer Parts Page