The BCD 104 is the most common bolt circle diameter model for double and triple chainrings and is also the first product ever made by Wolf Tooth Components. The Drop-Stop© tooth design is the highest performing and most durable on the market for narrow-wide chainrings.
Suitable for any 104 BCD crankset including Ochain system
Drop-Stop technology. On the wide/narrow chainring patented by Wolf Tooth, the wide side of the tooth has maximum contact on the drive side, which distributes the load and improves chainring durability. The narrow side allows mud and debris to pass through, reducing friction.
The alternating pattern of wide/narrow teeth prevents chain derailment.

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- Speeds: 11-12 speed
- Bolt circle diameter (BCD): 104 mm
- Shape: round
- Anti-drop technology: Drop-Stop B
- Compatible with 4-bolt 104 mm BCD crank arms
- Weight: 36 g

Compatible with all 9, 10, and 11-speed chains, with 12-speed Sram Eagle, T-type and FlatTop, Connex, Wippermann, and Campagnolo chains.

Not compatible with chains: Shimano HG+ 12-speed, KMC 12-speed, and Campagnolo 13-speed

Use: MTB
Number of front chainrings: 1x
Speeds: 12-speed
Number of chainring teeth: 30
Bolt circle diameter (BCD): 104 mm
Chainring mounting type: 4 holes
Anti-drop teeth with Narrow Wide profile: Yes
Chainring shape: Round
Chainring offset: 0 mm
Material: Aluminum
Color: Silver
Secondary color: Silver,