This is a CNC manufactured stainless steel reproduction of the bolt that retains the wooden gearknob fitted to two speed Douglas 2 3/4hp and 4hp models up from 1912'ish, to the mid 1920's.  It's thread and profile is copied from an original item and it has a shouldered plain shaft that allows the bolt to 'bottom' against the gearlever and the knob to spin freely

I have faithfully CNC replicated the gearknob bolt in stainless steel.  To ensure I got the right thread dimensions, I went to the original gearlever/bolt I had fitted to a second, heavily corroded, 1917 Douglas 2 3/4hp chassis I also have.  You can see in the photographs that the gearlever and bolt were very heavily corroded and most of the bolt had actually rotted away, along with any traces of the wooden knob itself.  But having derusted the lever/bolt, I was able to oxy/acetylened the lever to release the original bolt and - as hoped, this was able to provide me with a very good original thread profile and the small rounded nipple at the bottom of the bolt that fits into the gear plate recess.  From this I was able to ascertain that (not suprisingly), the original thread is a Douglas 'special' thread of 0.255" x 24 TPI, which I have replicated on these bolts.

Note - listing is for shouldered bolt only.  However, we also sell this bolt combined with the original gearknob - see Item 0698

These are the distinctive barrel headed screws that were used to retain the Low/High Gear gate to the frame on early Douglas 2 speed models - Douglas 2 3/4hp and Douglas 4hp models up until the early 1920's.  These screws are CNC machined to the original pattern in stainless steel.  Price is for a pair of screws.

As with many of the parts I make for these models, I have copied these as faithfully as I can from original patterns - to give correct thread (0.255" x 24 tpi - weird Douglas size!) and head dimensions.  As the photographs show, I took these patterns from an original 1917 second chassis I have, which I believe has original (although extremely corroded)  fittings.  I also used numerous photos of other original bikes to confirm head shape and profile that looked to be closest to original.  As you can from the photographs of them fitted to the Douglas 2 3/4hp model I am currently restoring myself - they do look nice, and being stainless steel will polish up similar to original nickel plated items.   

These special cylinder shaped bolts are used to retain rear wheel Belt Drive rims to the rear wheel of Beaded Edge rims on Edwardian belt drive motorcycles. 

They  are cross drilled to be fed onto 12 Gauge (2.55 mm) spokes, and then have a small head and nut that feeds onto your belt drive rim. Each assembly consists of a small barrel (crossdrilled) fitted with a 4mm grubscrew (to lock the barrel to a 12 Gauge spoke, once in position and the rim is centralised, 2 stainless washers and a nut that is on the other end of the barrel - that attachs to a hole in the circumference of the belt rim - 5 small parts in all.  All parts are in stainless steel. 

These are sold as Each - (you will need to check your belt rim to decide how many you will need to use for your model, up to 10 seems to be the norm).

Background:

To give a bit more background:  Most pre-1920 Edwardian motorcycles used belt drive final transmission.  To do this, there were various types of 'spun' belt rims, which employed short spokes to attach them to the (beaded edge) tyre rim, but also needed some form of attachment to the spokes themselves, to avoid lateral movement of the belt rim. The rim shown in the photograph is an original Douglas 2 3/4hp rim of @1912-1918 vintage, and has a lip with holes in the lip for this purpose.  When I purchased this Douglas restoration project, this very rusty belt rim had a small original steel plate about 1cm long wired to it, which had two small holes, threaded to take screws.  Therefore it looks like the original method of retaining the rim to the spokes was to feed two small screws through the lip of the rim - one fed either side of the wheel spoke, and screwed into the steel plate behind the spoke.  Originally I was going to replicate these plates, but I thought it would like quite ungainly and messy, and had seen another belt drive motorcycle using a type of retaining bolt similar to the ones listed here - and thought it looked a far more elegant and clean solution.

Each 'bolt' is CNC manufactured from 0.250" round stainless steel, with a 2BA thread machined on one end (to feed through the hole in belt rim lip), and drilled and threaded to take a 4mm x 0.7mm hex head grub screw on the other end.  Each cylinder is then crossdrilled to allow it to be fed onto a 12 gauge (2.6mm) spoke, again this is part of the CNC manufacture.

Each cylinder type bolt is supplied with the hex grub screw already fitted, and two 2BA pan washers fitted and 2BA nut, ready to fit.  All parts are in stainless steel.  Method of fitting:  you will need to feed each bolt onto the wheel spoke before commencing the main wheel re-spoking, but these can then be left until you have completed the main wheel spoking operation.  I can see my original Douglas Belt rim looks to have used 8 retaining plates, however, I think using 10 means one bolt every 4 spokes, which should cover most types of belt rims.  Then the next step is to 'spoke' the belt rim to the beaded edge wheel rim.  when you commence this operation, also fit the belt rim laterally to all the pre-fitted 'cylinder bolts', but do not tighten the grub screw or the 2BA nuts at this stage.  Finish spoking the belt rim to the tyre rim, to ensure it is absolutely central.  Finally tighten the 2BA nuts and then the grub screws to the spokes to finish the operation, and check still all central.  I would also advise using Threadlock on both grub screw and 2BA screw on final tightening, to avoid them loosening off in use.

Note - we can sometimes supply 12 gauge stainless spokes etched black (as shown here) to fit Douglas 2 3/4hp hubs and belt rims - see Item 0804 (but please confirm your required spoke length correct when ordering

Chronometric speedometer or rev clock Needle - later type with a rectangular shape on the opposite end to the needle.  Nicely made in brass with central boss.

It is difficult to be conclusive - but this type with the rectangular end to the needle looks to have followed on from the earlier peardrop ended needle, and seems normally to be fitted to chronometric instruments from the early/mid 1950's onwards.  However, I have also seen this rectanguar type sometimes fitted to earlier clocks - normally rev clocks.  

We also sell the earlier needle type with peardrop shaped end, which is normally seen fitted to pre-war Smiths clocks to the early 1950's (see Item 0643).

Very useful if you have have an instrument with damaged or missing needle

This listing is for a high quality reproduction of the 'lipped' and chromed Inlet Ring and distinctive shaped bolt that were fitted to Amal 276 Stub fitting carburettors, and locked the carburettor to the inllet stub. 

We offer this inlet ring in two sizes - this being the smaller size (See Item 1174 for the larger size) - 

The inner bore of this ring (the main bore, not the lipped ring) is 1 5/16" - i.e. it will fit over a carb where the outer diameter of the inlet stub is 1.312"/33.3mm

These rings are UK manufactured to a very high quality for us - made from brass as per the original pattern, then chromed.  The design is as per the original - with an inner lip that fits into a correspoinding lip on the carburettor body.  The specially shaped (shouldered) bolt is  CNC machined by us to the original disttinctive shape in stainless steel, then the end is polished - so that too looks like it is chromed.  The head of the bolt is milled to the correct imperial spanner size of  1/8" Whit (we mill this head, as it is becoming increasingly difficult to obtain it in stainless steel), which gives a very crisp finish - important, as it is often this hex head that suffers on original carbs - as they are often overtightened with use.  As a final design point - we have also replicated the opposite threaded end on these small bolts - which was rounded, as it protruded from the threaded end of the ring - presumably to avoid it catching on cloth's when the owner cleaned the bike.

These rings and bolts are often damaged and have lost their chrome on original bikes, with the bolt head often chewed - and as they are in a prominent and visible position on the bike - replcement with this item can transform the cosmetic look in that area - as well as allowing the carburettor to be properly tightened to the inlet stub!

Model Fitting:  I cannot be sure which Models were fitted with the Type 76/276 Amal that required the 1 5/16" bore ring listed in this tiem - but suspect it was likely to be the late 1920's to the mid 30's Side Valve models (and I am not sure - but this ring type may also fit earlier Amac/Amal carbs - email if you require more dimensions).  I do know that it was normal practic to fit Side Valve models with a 1" internal bore carb, and OHV models with a 1 1/16" bore carb.  The carb in the photo is a late 1940's Amal 276 from an OHV Norton - and that reqiuires the larger 1 7/16" diameter ring (item 1174) - but the smaller ring shown in this listing would fit carbs of exactly the same design - just a slightly smaller (1 5/16") - so please check the outer diameter of your carb stub before ordering

This listing is for a high quality reproduction of the 'lipped' and chromed Inlet Ring and distinctive shaped bolt that were fitted to Amal Type 76 /276 or Amal 86/286 Stub fitting carburettors, and locked the carburettor to the inllet stub. 

We offer this inlet ring in two sizes - this being the larger size (See Item 1173 for the smaller size) - 

The inner bore of this ring (the main bore, not the lipped ring) is 1 7/16" - i.e. it will fit over a carb where the outer diameter of the inlet stub is 1432"/36.4mm

These rings are UK manufactured to a very high quality for us - made from brass as per the original pattern, then chromed.  The design is as per the original - with an inner lip that fits into a correspoinding lip on the carburettor body.  The specially shaped (shouldered) bolt is  CNC machined by us to the original disttinctive shape in stainless steel, then the end is polished - so that too looks like it is chromed.  The head of the bolt is milled to the correct imperial spanner size of  1/8" Whit (we mill this head, as it is becoming increasingly difficult to obtain it in stainless steel), which gives a very crisp finish - important, as it is often this hex head that suffers on original carbs - as they are often overtightened with use.  As a final design point - we have also replicated the opposite threaded end on these small bolts - which was rounded, as it protruded from the threaded end of the ring - presumably to avoid it catching on cloth's when the owner cleaned the bike.

These rings and bolts are often damaged and have lost their chrome on original bikes, with the bolt head often chewed - and as they are in a prominent and visible position on the bike - replcement with this item can transform the cosmetic look in that area - as well as allowing the carburettor to be properly tightened to the inlet stub!

Model Fitting: The ring shown here has a 1 7/16" bore size, and fitted over the stubs of Type 76/Type 276 Amal carbs fitted to many Norton OHV/SV models.  The carburettor shown in the photo is from a late 1940's Norton OHV model and has the correct stub outer diameter for this ring.

It is also the correct diameter to fit Amal 89/289 carbs fitted to Vincent Models (I confirmed this by measuring the original Amal 89 carb fitted to my Vincent Comet).

No doubt it will also be the correct size for numerous other margques of the 1930's-950's that fitted Amal 76/276 or Amal 86/286 Carbs - But please check the outer bore of your carb inlet stub before ordering to check - and note that we also sell Item 1173, which has the smaller bore of 1 5/16"

This is the thick 'D' Shaped gasket that fits underneath the HT pickup fitted to Lucas K2F Type magnetos, where the HT Pickup is held by a clip.  These are high quality UK manufactured gaskts. 

Price is Each.