Sunbeam 250cc Model 16 High Cam vintage motorcycle crank, flywheels & Conrod – SOLD

Sunbeam 250cc Model 16 High Cam vintage motorcycle crank, flywheels & Conrod – SOLD


Sunbeam 250cc Model 16 High Cam vintage motorcycle crank, flywheels & conrod.

Sunbeam 250cc Model 16 High Cam vintage motorcycleThe Model 16 250cc lightweight Sunbeam was a “one year only” motorcycle. It was introduced in 1935 as a replacement for the Model 14. However, the Model 14 was re-introduced in 1936 as replacement for the Model 16. It used most of the components of the 250cc Model 14. However, Sunbeam decided that they needed a sportier version with an engine that looked like the other genuine high-cams. So, they replaced the standard 250cc engine with something like a high-cam AJS.

For those that don’t know, the easy way to differentiate the barrel and head, from the standard Model 14 ones was the stud spacing. The fore and aft studs were different widths on the High Cam Model 16.

This is a Model 16 high cam crankshaft with flywheels and the connecting rod. The crank pin was the same as model 9 and the drive side shaft will interchange with 250 350 Sunbeams from 1936 onwards. But, as a complete unit, it’s suitable for a Model 16 from 1935.

Condition of the Sunbeam 250cc Model 16 High Cam vintage motorcycle crank.

Used. I would advise taking it completely apart, and perhaps replacing the big end. Not because I think there’s anything wrong with it. It’s just not worth building an engine up around a big end that you have not checked. Overall, it all looks fine. The connecting rod looks straight and the flywheels are decent.

So, if you are lucky enough to own a Sunbeam 250cc Model 16 High Cam vintage motorcycle, then this is a good opportunity to buy a spare crank / flywheels and connecting rod.

Other Marston Sunbeam motorcycle parts

I have some. Please look at the current selection of advertised parts here. If I don’t have what you are looking for, it’s always worth asking.

If you aren’t already a member, it is worth joining the Marston Sunbeam Club. They have events, spares and advice on the various models.



Shipping is charged ON TOP of the price for the item. There are too many variables to include shipping in the checkout, so please contact me before you buy and I will give you a shipping price.

I usually ship to most destinations.

International shipping available. Let me know where you are and I will send you a price for shipping with tracking

Combined shipping available. 

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

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. I can accept EUROS. Please ask. 

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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