Shimano Deore SM-CRM66 Chainring 30T Chainring
What the checker says2will not fit
Run variant by variant through the mountain bike builder’s own engine. Every sentence below is the checker’s, unedited. Nothing here says this part fits your bike; it says what it does and does not fit among the parts we hold.
Checked against 5882 verified mountain bike parts in this catalog. 5880 produced no finding of any kind.
Will not fit
- Will not fiterror · CranksetChainring mount mismatch: Shimano Deore SM-CRM66 Chainring 30T is a Shimano direct-mount ring, but Hope Carbon Crankset ships with a Hope direct-mount interface. Direct-mount chainring interfaces are per-system and do not interchange. On 1 of the 98 verified cranksets in this catalog.
- Will not fiterror · CranksetChainring mount mismatch: Shimano Deore SM-CRM66 Chainring 30T is a Shimano direct-mount ring, but Hope EVO ships with a Hope direct-mount interface. Direct-mount chainring interfaces are per-system and do not interchange. On 1 of the 98 verified cranksets in this catalog.
$40.00 MSRP
What the maker states
- Teeth
- 30 teeth
- Direct mount
- Shimano direct-mount
- Speeds rated
- Rated for 12-speed
The rest of what the maker states4 not published
4 further fields the checker looks for are not published by Shimano, so we leave them blank rather than estimate them, and those 4 checks stay silent on this chainring. They are bcd, bolt count, offset and chainline. Each is recorded as “not stated by the maker (not checked)”.
Source: the maker’s page. Last checked 2026-08-21.
Checked against
The checker ran this model against every verified part below that it has a slot for, the same way it checks a build in the builder. What follows is the verdict it actually produced for that specific pairing — not a recommendation, and not a guarantee any of these parts fits your own bike.
- 5DEV R-SPEC Trail/Enduro Cranks (Crankset) No conflicts found
- 9point8 Fall Line (Dropper Post) No conflicts found
- 9point8 Stout (31.8, 30mm) (Stem) No conflicts found
- ACID SLX 30 front (Front Wheel) No conflicts found
- ACID SLX 30 rear (Rear Wheel) No conflicts found
- Acros ZS44/ZS56 (Headset) No conflicts found
6 of 1858 counterparts with a page of their own that the checker actually probed this model against, in alphabetical order by brand and model — never by price, popularity or the verdict itself.