OX3-920D

New addition to OX series, the long-awaited 12 speed version.
Further evolved smooth and quiet shifting mechanism enables more effective power transmission. It's optimized for long-distance rides and hill climbing.

Outer chainring featuring "Enforce bridge"
Key feature of OX3!
New outer chainring designed by using unique patented technology, which is the main feature of OX3.  Thus, high-performance OX series has further evolved to deliver even more advanced performance. 

☑The special design contributes to rigidity and efficient power transmission.

☑The special design facilitates more efficient chain engagement, resulting in quieter and smoother shifts without power loss.

What is "Compact Plus+"?
The dual P.C.D. design enables the use of P.C.D.74mm super small inner ring, which is ideal for long- distance rides, hill climbing, Granfondo, where stamina is required

P.C.D. : 110/74mm (Compact Plus+)
Axle: IDS24
B.B. : Not included
BB is sold separately. Please choose an appropriate BB for your bike from our BB converter series. For more information, please see ;

BOTTOM BRACKET LIST for road bike

Compatibility : SHIMANO 12speed ROAD*
Chain : SHIMANO HG 12speed
Chine line : 44.5mm
Q-factor : 143.6mm
*For 12speed ROAD only.  Not compatible with GRX due to different chainline.

Axle : IDS24 (Φ24mm)
Crank length : 160, 165, 167.5, 170, 172.5, 175
Combinations *There are 2 shape options for the inner chainring
P.C.D. : Compact Plus+ (110-74mm)
46-30 (CP74-12S circular) or 46-30 (CY5-SHC-12S non-circular)

CYCLOID-SHC (CY5-SHC-12S)
Non-circular high performance inner chainring developed uniquely by Sugino. It increases the diameter during the power phase and minimizes it at the top and bottom dead spots to ensure more efficient pedaling.
Also, its shifting performance is perfect as circular chainrings.

Special features
"Super low Q-Factor 143.6mm" lower than the existing model and perfectly symmetrical, which is crucial for body comfort and ensuring smooth pedaling.

"Large ankle clearance" " While being Super-low Q-factor, it’s designed to secure enough ankle clearance. So, your shoes won’t rub the cranks.

*Special fixtures available (sold separately).
MT-OX to mount braze-on front derailleur low enough to accommodate small outer chainring.

Before installation, please check ;
Front Derailleur Position for installing chainwheel