first things first, if you only ride in the 3 biggest cogs, then drop to a 28 or 26t. Climbing on a DH bike is a challenge. This will have a huge impact on chain and cog wear. Even when you are on the 10 or 11, the chain is still at a acute angle grinding away on your chain plates. Strive for a front ring size that allows you to ride in the middle of the cassette for a lot of the climbs, then when it gets painfully steep you can zip up to the big cogs for a brief amount of time.

If it shifts well, you don't need to go with any particular family, all modern chainlines suck, and having too much chain ring just makes it worse. And the further out the front gear is, the worse it gets i.e., 55mm chainline. Both S companies offer that, but that don't make it right!

I would say use the narrowest chain line up front possible to reduce the angle to the rear cogs, but you also have to keep the upper and lower gears in front lined up. Is there a way to move the idler inboard? This will reduce the angle to the big cog in back.. Dunno if the swingarm will hit the idler if it gets too far inboard? But more than likely you can go way inboard with the chain ring, but it's the idler gears distance from center that will create the chain angle to the cogs in back.

 

Thanks for the reply, im only able to find 2 companys that make sram direct mount 6mm offset 28t 12 speed chainrings
I reached out to wolftooth and they dont make one, anyone know a brand that im missing? Northshore billet is pricey

SRAM 1x11 and Eagle Narrow Wide Direct Mount Chainrings

Direct mount narrow-wide chainrings for SRAM 1x11 and Eagle 1x12 cranks. CNC machined in Whistler, Canada and designed to provide a long-lasting, great shifting chain thanks to an optimum chainline. Available worldwide.

northshorebillet.com

SRAM GXP/DUB 3 Bolt (6mm offset) Hollow Round Narrow Wide Chainring 28

7075-T651 Aluminum Alloy CNC milling Round SRAM X9, X1, NX, GX, X0, X01, XX1, X01 Eagle, XX1 Eagle. Cane Creek eeWings Mountain 6mm Standard or 9/10/11/ 12 speed

pq-bike.com

 

https://alugear.com/chainrings-1x/217-10847-round-non-boost-for-sram-3-bolts-mtb.html#/11-color-black/28-size-28t

 

The Alugear chainrings work well. Have used them for thousands of kilometers with no issues!

Review: Alugear Oval direct mount Shimano HG+ chain ring

Review of the Alugear direct mount Shimano 12-speed HG+ boost Sram 3-bolt oval MTB chain ring

mtbengineer.blogspot.com

I would not try to alter the chainline in a high pivot frame, especially without moving the idler as well. You’ll introduce twisting loads on the idler and likely wear out the bearings extremely quickly.

 

Thats been my primary concern since I found out my bike had a non boost ring.....When I purchased and put the boost 30T ring on my 2 biggest cogs made a lot of noise on the bike stand while spinning the cranks and I didnt know if that was because of my sramano configuration... It couldnt be deraileur adjustment issue could it going from non boost 30t to boost ring 30t?

Garbarok sells chainrings with mismatched chainlines, the Sram Boost 30T has a 4.3mm offset and the 28T has a 5.4mm offset...

I bet the 30T with 4.3mm offset would line me up better to the idler and perhaps take away the noise...I do want a 28T though to perhaps climb in the 3rd biggest cog...Right now im 3mm away from my idler

 

I just tried boosted 3mm chain ring again and what happens is the chainline from the bottom of my ring gear to the deraileur is way off. It clicks and the chain moves a lot coming off the bottom of the ring gear trying to get centered.... Its even a bit off with the non boost chainring.... Basically the deraileur needs to come away from the frame

This is what happens when you buy used and dont know much about bikes.... I can only change my hubs to sram, or change my drivetrain to shimano as my cassette is shimano and everything else is sram

 

I bit the bullet and order shimano slx crankset with deore deraileur and xt shifter under $300 so not too bad

 

Was just going to ask: have you tried a Shimano chain and chainring? Sram Eagle chainrings don’t work well with Shimano chains due to the longer inner chain plates.