What Our Gearhead(R) Experts Are Saying:"If you're running a 104 BCD spider and want to move to 12-speed Shimano, this is an easy call. The 7075 aluminum is thick enough to resist flex even when you're putting down power on steep climbs, and NW tooth profiling keeps the chain on when the trail gets chattery. It's eMTB-rated too, which tells you something about how Race Face built it."The Race Face SHI 12 Chainring 104 BCD does the job without complaint. Cut from thick 7075 aluminum, it resists flex under load and bolts cleanly to any 104 BCD four-arm spider, making it a straightforward upgrade for riders moving to a 12-speed Shimano drivetrain. NW tooth profiling grips the chain through rough terrain and heavy pedaling, and the ring is rated for eMTB use, meaning it's built to handle more torque than most riders will ever generate.