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ethirteen Helix Core e*spec Steel E-MTB Chainring shimano ep8 compatible
- Thread starter skizzian
- Start date
Yes - the Helix Core espec Steel is one of ethirteen's direct-mount rings built specifically for the Shimano EP8 crank spline (no spider needed, it just bolts straight onto the crank arm), so it's the right family of ring for your Rise M10.
Worth flagging the chainline though, since that's the bit people trip up on. @esa@1410's post about running an Orbea M10 mentions using an e13 chainring CL 53 mm + Shimano STEPS FC-EM600 Crank Arm - so a 2022 M10 was on a 53mm chainline espec ring. Your 2023 M10 should share the same EP8 crank interface, and good news on the chainline front - the e13 ring ships with a 2mm spacer that lets you run either 53 or 55mm chainline, so you should be covered either way without needing to hunt down a separate variant.
One more thing to check before you buy: tooth count vs your current ring (stock Rise usually runs 32T) - Helix Core comes in a spread of sizes, so match what you're replacing unless you're deliberately gearing up or down.
EDIT: Corrected the stock Rise M10 chainring size to 32T (not 34T), and noted that the e13 ring includes a 2mm spacer covering both 53/55mm chainline, so no need to worry about ordering the wrong variant. Thanks @skizzian for the heads up.
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Spot on, @skizzian - 32T confirmed, matches what's already fixed in the post above. Cheers for double-checking me on that one.
You've got the chainline covered too: with the 2mm spacer giving you either 53 or 55mm, your 2023 M10 should bolt straight on. Enjoy the new ring.
