-
I'm basically on the look out now for a 46tooth 1/8 5 pin chain ring in excellent condition if anybody has any recommendations.
Assuming you want this for fixed, I suggest you just stick to 3/32". There's very little benefit in using 1/8" chain, except that the wear rate will be slightly less. There's no shortage of chains and sprockets in 3/32" and there are plenty of chainrings; I have more TA Adapter rings than I'm ever going to wear out. So I think you need a TA five pin adapter - I'm sure there are plenty out there.
Because the adapter itself is a casting it is more rigid than the other TA types. This is noticeable when using a double chainring because the Cyclotourist and Criterium rings tend to flex under effort causing the chain to foul on the front changer - this doesn't happen with the adapter set, which was not known as 'Professionel' for nothing.
Although most adapters are intended for use as doubles, these are ok to use as singles - in the unlikely event that the inner flange fouls on the chainstay, you could always file it off.
If you're not familiar with this type , let me know and I'll find a photo.
clubman-
Thank you @clubman interesting post, I keep coming back to TA rings as the best option on a couple of builds. For a double I’ve been tossing up a double adapter vs cyclotouriste. The adapter has a 44t minimum inner ring, but I guess not a problem if you’re also weighing up flexing the cyclotouriste rings while pumping your guns!
[Also it’s to go with a Simplex TdF so I believe only 16 teeth total, i.e. 44-50 front and 14-24 back or similar]They did a single ring adapter as well as a double - you need a look at the back and will see there aren’t the shoulders on the arms to brace the inner ring. For what it’s worth I guess a marginally better chainline than an outer ring on a double (with a single axle as well). They come up on Ebay fairly frequently as do 1/8 singles in decent sizes.
FYI the Canadian seller with a large stock on Ebay isn’t selling the old logo shown in the pics - I confirmed they were and stumped up for a few 1/8, but when they arrived they weren’t. Not the end of the world and I couldn’t be arsed sending them back across the Atlantic. Doesn’t feel very zen having vintage bike bits shipped around the world in the first place!
-
https://www.ebay.co.uk/itm/TA-Specialites-Professional-Track-Crank-165-MM-49-T-615g-Crank-Track-Pista-/393048890144?_trksid=p2349624.m46890.l49292
You mean something like this.
I love it, thanks for the advise @clubman, I had no idea that this was even a thing.
Not that I'm going to buy this particular version but it gives me an idea of what I'm looking for. -
So after my chainring disintegrated, I intended on replacing it with a TA adaptor and new chainring attached to the Stronglight cranks, however in the end I thought i would just raid the parts bin for a suitable chainset.
It would need to be reliable, maintenance free and geared for cycling up and down Blackheath hill everyday.
I found this.
Williams C34 46t.1/8.
Back to basics
veloham
falconvitesse
Yer definitely give them a miss.
I'm basically on the look out now for a 46tooth 1/8 5 pin chain ring in excellent condition if anybody has any recommendations.