Sturmey Archer Tab Washer
Sturmey Archer tab lock washer - this locates into the frame to help lock the wheel into place - so it will remain tight even if the axle nuts become loose. The whole is not round - it is keyed to match the axle.
The washer is marked SA and TOP
Size: 13/32 inch or 2mm (thick)
The TOP mark denotes the orientation of the washer into the bike frame - top at the top!
Used with the following Sturmey Archer hubs:
Brompton Sturmey Archer BSR - standard ratio 3 speed hub
Brompton Sturmey Archer BWR - wide ratio 3 speed hub (used on 6 speed Brompton)
Sturmey Archer SRF3 hub
Sturmey Archer AW hub
Sturmey Archer SRF5 hub
Sturmey Archer ref: HMW150
Made in Taiwan