Hi

Im trying to locate and buy a Royal Enfield bullet 4 speed Albion gearbox as fitted to the works bikes.

I think the gearbox is the same as they fitted in the early 50’s trials and road bikes, recognisable by the separate (higher up) gear change lever.

The bike I have was probably made from a late 50’s road bullet and so is fitted with the later wide gearbox, and I find it unsuitable for trials.

If anyone can advise me as to where I might find a gearbox and what I should expect to pay I will be very appreciative.

You need to subscribe to Old Bike Mart, if you don’t already, lots of info, brand specific clubs and large classified section where all sorts of goodies lurk. This is possibly where you will get what you are seeking.

Hi - 

I have a 1960 (road) Bullet - a long-term project for which I have struggled to find correct front fork parts......I am reliably informed theyv'e all been snapped up by the pre-65 Trialers !

Your chances of finding a complete and correct, ready-to-use gearbox assy. (or one in any sort of condition, come to that), I would estimate at zero or less - but what do I know..?

First port-of-call for anything Royal Enfield has to be Hitchcock's Motorcycles Ltd.,  although I suspect you already know this.   

A picture speaks a 1000 words, it's said  - any chance of seeing your bike and/or the present gearbox ?

 

 

Thanks for your replies. Looks like I’m in for a hard time finding the parts I need!

here a photo of my bike and a photo of the offending gearbox I’m after 

Will the indian made box fit?

I thought Hitchcock's did a full range of gearbox internals, wide, close, std? All sorts of sprocket options too.

They would be first on my phone call list.

Hitchcocks tried to tell me the works bike had specially made gearboxes, I know this to be untrue as the fitted the same type box in some road bikes albeit with different gearing.

Hitchcocks are great with Indian built stuff but have pretty sketchy knowledge/ records of British stuff, however they do regularly have older parts in stock but it’s difficult to make them understand what exactly I need without registration numbers, frame numbers and part numbers.

pretty damn frustrating ?

That particular gearbox was used on Bullet 1949-1954. Older gearboxes were different and later are of the wide type.

Works bikes perhaps had a different gearing inside?

You can use a small engine sprocket to lower the gearing but kick starting will be heavy.

If you use crankshaft axle p/n 32309 it is not very difficult to make your own single chain engine sprockets but you probably need a special clutch for the same chain size

I am not sure but I think gears inside are the same pre-55 and 55+. Must be checked.

Edited December 12, 20187 yr by carl ekblom

Thank you Carl 

I shall do some investigating 

How can I recognize a real trial
I have only bought this motor

That is the narrow engine and gearbox. That´s good. As far as I know any bullet frame will fit. Post 1955 frames are prefered by many but should be narrowed around the seat. I think you also can tuck in the engine/gearbox in a Crusader frame.

For ground clearence the oil filter extension at the timing cover can be cut away.