1959 Model 99 chainguard

Hi Andy, I believe the chainguard you require is part number 21832. I have the parts book for 1959, it also lists the fully enclosed chainguard under âoptional equipmentâ part number ERCC7.I checked my 1961 parts book and the numbers for both are the same. Therefore the same chainguard was used on wideline and slimline frames. I have an original one fitted to my 1961 Model 50 and a reproduction one fitted on my 1957 model 99. The reproduction one is an exact copy (you would not tell the difference when comparing the two together).NOC Spares list a reproduction 21832 chainguard at £35, but are currently out of stock.The item currently on eBay looks the same but the picture only shows the rear end.

Hope this helpsRegards Alan

Hi Andy.

Upto and including58 the featherbedDominators' chainguard was fixed on two plain lugs, one midway along the swinging arm and the other (with 2 bolts) righton the pivot tube. For 59 this was changed. The swinging arm hadfour fixing points two above & two below; one roughly 3-4 inches from the pivot tube and the other ~6-7 inches further on. These were composed of what can best be described asa 'strap'bent half way around the swinging arm providing a lug top and bottom with a short piece of tubing through each to take the bolt. This was so the optional fully enclosed chaincase could be fitted. The chainguards for the 2 years are the same except for the fixture drillings and the 58 has a piece extending to the mounting on the pivot. I think I'm right in saying that the 54 guard is a different shapein that it doesn't cover as much of thethe rear brake plate as the later ones.

Hope this helps.

Ian.

Hi IanAn interesting point, what you say means my 1957 99 must be fitted with a later type swinging arm as it has the extra lower mountings for a fully enclosed rear chainguard. Its quite possible as many parts of the bike are none original.RegardsAlan

Here you go, 58 & 59/60 swinging arms and chainguards.

Cheers.

Ian.

Seems I have to load each one seperately!

and again...............

.....................again!

Yep - that looks right to me! My 1959 99 had the fully enclosed chainguard optional extra. I removed the bottom section when I changed to a 3/8" rear chain in 1965 because it clanged against the guard! Of course, I lost that bottom section over the last 46 years and had to hunt for a replacement afterI decided to put the bike (for "bike", read "pile of rust"!)back as it was "ex-works" concours (I'm not there yet!). I found an oldfull guard in pretty good nick at a Stafford Show a few years back, wot only cost me £40! I now have a full plus the top half of a full one! It was just as cheap as buying a repro standard guard. I know that they are great at collecting dirt and oil and spreading it all over the chain! No probs as I won't be riding it in the rain - or when it's dusty...or cold...or too hot..........! LOL!!

Happy New Year, Lionel