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【Voltage Compatibility】
When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device’s requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.
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Chainring Fitment: Shimano 105 R7100, UT R8100, DA R9200, most 110bcd 4-bolt power meter spiders
Material: High strength aluminum 7075-T651
Speed: 9-11s (road bike), fits Shimano 12-speed road bike chain
Bolts and caps: Bolts and caps are not included with the chainrings and must be ordered separately. Not compatible with 46-32T. Only compatible with Stone double chainrings, not with other chainrings.
Stone 110bcd Double Circle Chainrings for Shimano 105 R7100, UT R8100, DA R9200 Road Bikes, 46-32T, 48-33T, 50-34T, 54-40T, 52-36T, 53-39T, 55-40T, 56T-42T, 58T-44T. Compatible with: Shimano 105 R7100, UT R8100, DA R9200, and most other 110bcd 4-Bolt Power Meter Spiders. Material: High-Strength Aluminum 7075-T651. Color: Black. Size: 110bcd. Benefits: Fast chain shifting. Weight: 167g (50T/34T). Speeds: 9-11s (road bike). Compatible with Shimano 12-speed road bike chains. Offset: 0mm. Bolts and caps: Bolts and caps are not included with the chainring and must be ordered separately. Not compatible with 46-32T. Only compatible with Stone double chainrings, not with other chainrings. Material: AL-7075T651, CNC process steel.
Only compatible with Mano R7100, R8100, and R9200 (not universal across models; select based on your bike's crank model). The modification cap integrates with the crank profile for a smooth transition. Regarding the front derailleur extender: The front derailleur extender is not included with the chainring and must be ordered separately. Compatible models: 12s Di2 Shimano Dura-Ace R9250, R9200/Ultegra R8150, R8170, R8100/105 R7150, R7100/FORCE AXS. Also compatible with 10s and 11s road bikes, but not mountain bikes. Function: Raises or lowers the height of the front derailleur to accommodate large-tooth or small-tooth chainrings on road bikes. Lifting distance: 15.5mm Material: 304 Weight: 9g Package contents: The package includes two chainrings and four bolts or a set of bolt covers (cover caps and front derailleur extensions)
(The chainring is not included and must be ordered separately)