1923 Sturmey Archer 3-speed LS Heavyweight gearbox Believed for Panther motorcycles – SOLD

1923 Sturmey Archer 3-speed LS Heavyweight gearbox Believed for Panther motorcycles – SOLD


1923 Sturmey Archer LS 3-speed heavyweight motorcycle gearbox.

Believed for heavyweight Panther motorcycles with a 3-stud mount. Someone has mentioned that they have an identical one fitted to their Model 90 500cc Panther motorcycle.

Anyone need one for a project?
This one is a little different to “normal” boxes. The Lightweight LS had 2-stud mounts. The usual Heavyweight LS boxes had 4-stud.
This one has 3 stud mounts and I am reliably informed by a Panther owner that he has an identical gearbox fitted to his bike.
The number has “H” as a suffix, so I guess it’s a Heavyweight.
Good for a 1920’s Flat Tank project

Reading up about the LS gearboxes and then comparing in a 1929 catalogue, it seems that you could order a race-spec one. Surprisingly, the race one (HW) were supplied with / without kickstarts. However, the late-1920’s race spec boxes had the gearbox cases like the Dolls Head ones (with the top and bottom pivot mounts). Perhaps the earlier ones didn’t have those cases?

Perhaps an expert can enlighten me?


It turns and clicks through the gears. The kick start operates and the casings are good. The keyway looks worse in the pics than it is. A key will sit in there fine.

Please NOTE:

Shipping is additional to the item price. I will contact you with the price to ship. 

International shipping available. Please ask.

Combined shipping available. 

Viewing: Please come and check it over before you buy. It is at PE28, near St Ives in Cambridgeshire.

Shipping: I usually ship to most destinations. If you don’t see a price, please ask. Thanks. International shipping available.

Collection: If you don’t want it shipped, I have plenty of space. If you can’t collect for a while, it’s not a problem. However, I will need to be paid very soon after the sale. Thanks.

Payment: Good old fashioned money on collection is preferred. I can accept payment through PayPal or by bank transfer as well.

Import Taxes: Please note that IMPORT DUTIES are not something I can control. If you are buying from outside the UK, there is a chance that you will have to pay import taxes. Import taxes vary from country to country. If there are charges to pay, it is the buyer’s responsibility to research the cost and pay the duties. The price that you see on my advert is for the item and not the item plus whatever taxes might be due.

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