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One Up Components Chainring 104BCD
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Improve chain retention, reduce drivetrain wear and keep your bike running smooth with a fresh 104 BCD chainring.
We’ve designed the new 104 BCD ring to accommodate the added power and increased load from E-Bikes. The tooth profile eliminates chain drop and sheds mud. A simple upgrade you’ll notice every ride.
Narrow-wide tooth profile
Works with existing hardware
Half the weight of a steel ring
Available in 30T, 32T and 34T
40g (30T), 42g (32T), 57g (34T)
12, 11 and 10 speed chains and 104 BCD cranks
Align the small bump on the inner edge of the ring with your crank arm
Tighten hardware to 8nm