Author Topic: Chainring w/ GXP bolts but Shimano 12s teeth?  (Read 1350 times)

thebigmotorunit

Chainring w/ GXP bolts but Shimano 12s teeth?
« on: February 28, 2023, 10:04:50 AM »
I bought a few of the cranksets on the link below and they have worked great, so far. However, o am looking to try and pair them with a shimano 12s cassette and am curious if anyone has found a 3 bolt GXP style chainring that works with a shimano 12s chain.

https://a.aliexpress.com/_mqkQpJk



jonathanf2

Re: Chainring w/ GXP bolts but Shimano 12s teeth?
« Reply #1 on: February 28, 2023, 11:13:28 AM »
I bought a few of the cranksets on the link below and they have worked great, so far. However, o am looking to try and pair them with a shimano 12s cassette and am curious if anyone has found a 3 bolt GXP style chainring that works with a shimano 12s chain.

https://a.aliexpress.com/_mqkQpJk

Many of the chainrings claim to work with 12 speed drivetrains. I've tried my direct mount Racework chainrings with 12 speed chains and they seem to work fine.

https://www.aliexpress.us/item/3256804891500564.html

https://www.aliexpress.us/item/3256804587503754.html

thebigmotorunit

Re: Chainring w/ GXP bolts but Shimano 12s teeth?
« Reply #2 on: February 28, 2023, 11:29:52 AM »
To clarify, I have one of the aforementioned cranksets working great on a sram eagle 12s cassette and chain, but shimano's 12s system claims to require specific chainring teeth to work with their 12s chains.

Boybiskit

Re: Chainring w/ GXP bolts but Shimano 12s teeth?
« Reply #3 on: March 03, 2023, 05:50:16 PM »
It's not Chiner, but North Shore Billet make Shimano style chainrings that fit on SRAM mount. A neat way to keep everything compatible without swapping cranks / being stuck with SRAM. I've been running one for a year with no issues.

Condorman

Re: Chainring w/ GXP bolts but Shimano 12s teeth?
« Reply #4 on: March 06, 2023, 10:07:30 PM »
Here's a few options, none of them are really budget pricing though.  First is the Wolf Tooth Components chainring (they have both oval and round chainrings):

https://www.wolftoothcomponents.com/collections/mountain/products/direct-mount-chainrings-for-sram-cranks?variant=26132214021

Next is the oval chainring from Absolute Black:

https://absoluteblack.cc/sram-oval-boost-direct-mount-chainring-for-12spd-shimano-hyperglide-hg-plus-chain/

Next is Alugear (both round and elliptical).  Unlike Wolf Tooth and Absolute Black that have specific teeth profiles, the Alugear chainrings are designed to work with both SRAM and Shimano chains.  If you're in the United States, you can purchase them cheapest here:

https://www.alugearsale.com/alugear-elm-narrow-wide-boost-chainring-for-1x-sram-3-bolt-direct-mount-sale/

Otherwise, you can purchase them from their company website or from r2-bike:

https://alugear.com/chainrings-1x/219-10951-round-boost-for-sram-3-bolts-mtb.html#/26-size-26t/11-color-black
https://r2-bike.com/ALUGEAR-Chainring-round-ELM-Direct-Mount-1-speed-narrow-wide-SRAM-MTB-3-hole-BOOST

Last option I found is OneUp Components and their "Switch" chainring:

https://www.oneupcomponents.com/collections/chainrings-round/products/switch-sdm

Hope this helps.

TidyDinosaur

Re: Chainring w/ GXP bolts but Shimano 12s teeth?
« Reply #5 on: March 07, 2023, 03:05:30 AM »
If it were me, I would just order a generic chainring from Ali and try. They cost only 12€ or so...
If you are talking about a 1x setup I can't imagine you would need special teeth...

thebigmotorunit

Re: Chainring w/ GXP bolts but Shimano 12s teeth?
« Reply #6 on: March 11, 2023, 10:23:00 PM »
The plot thickens. These Marina are being sold with shimano 12s cassettes and KMC chains.

https://www.bikesonline.com/2023-marin-rift-zone-29-carbon-xr

thebigmotorunit

Re: Chainring w/ GXP bolts but Shimano 12s teeth?
« Reply #7 on: April 28, 2023, 02:15:48 PM »
Just a update: The Goldix zero offset chainring that looks like the X-SYNC tooth profile works great with my Shimano Deore chain and derailleur. I can't speak to the durability or to the 3 mm offset versions that look to have a different tooth profile. The zero offset works with my Ripmo V2 because it has a weird 55 mm chainline.

https://www.aliexpress.us/item/2261799827226089.html?spm=a2g0o.productlist.main.3.60ed7445qlHD01&algo_pvid=a83eaf66-e3a0-46f9-8b91-b274e7156668&algo_exp_id=a83eaf66-e3a0-46f9-8b91-b274e7156668-1&pdp_npi=3%40dis%21USD%2122.11%2110.61%21%21%21%21%21%402122443916827091160472929d0790%2112000018709444481%21sea%21US%212130126664&curPageLogUid=rPMSxY469Enm