I need 20t, very strong stainless steel chainring...
Things I've gone through fast:
action tec ti, one ride
sugino, one ride
race face alum, 3 rides
race face steel, one week
Things that kind of lasted:
4 year old shimano steel, 1.5 years (god i loved it)
salsa steel, around 4 months
I can't find any old 20t shimanos, or any 20t salsa rings...in fact the only 20t I can find are the race face and the action tec. If anyone has any ideas as to where to get something good, let me know please.
only way i know is to find the small, out of the way bikeshops that never throw away parts no matter how long they've been on the shelf. I can almost always find 22t shimano rings at local shops, but i've never gone looking for 20's.
I use one of those Middleburn hardcote chainrings. The deal with them is they claim 10 times less friction and 4 times the wear resistance of a standard ring. My coating started wearing off pretty quick so who knows. They also wouldn't be consided too light weight but it's just a chainring.
Personally I try to change my entire drivetrain every 6 - 8 months, so I'm not even after anything that lasts super long. Blackspire does a steel chuck ring its called. I used that a while ago. It worked. Dunno aboots 20 tooth tho.
As for the Middleburn I got it from ken at thetrialsinshop.com. I dunno if he would have em in as I got mine specially right when they came out but there is a distributor for them in Canada as well (www.cycles-simtra.com).
I use the middleburn 20t hardcoat as well, following on from a 22t that I used for about 6 months and has no wear one it at all. The chainrings are about as chunky as they can be while still taking a 9 speed chain. They are designed for their own spider though so check the PCD, also the cranks bolts are countersunk into the ring so you may need 5 shorter bolts.
forgot to mention I killed a blackspire as well....thanks for all the replies tho- I'll see if what I'm working on right now doesnt work out, and check out the middleburn...i seriously don't care if it weighs 3 pounds.
ps. my red chris king hub is amazing . I guess my gold one with all the drama around it on biketrials was bunk as shit?...at least I gave it some good publicity.
middleburn the way to go - chunky (and, although steel, are lighter than a shimano 22t which is 1/3rd the thickness - not that the weight of a chainring is a sensible thing to ponder). Pretty cheap too, the old Australian rule of thumb "$1 per tooth" actually works on middleburn rings.