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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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110BCD, 4 arms, chain 9 10 11 12 speed, support crankset R9 100 R8000 105 R7000
Optimized teeth design, low noise and anti-drop. Self-clean from muddy soil.
USA Aluminum 7075, High Rigidity - High Precision CNC Machined, 7075 T651 Aluminum provided by USA Aleris/Alcoa. Long lasting construction. HB150 Superior Rigidity, 4mm Thick, Anodized Black
Lightweight - Lightweight with cut-off inner but rigid design, weight 46-163g. Treatment: Anodized, comes with 4 bolts
The choice of many professional European track riders, with a lifespan of 30,000 km
Stone Round Chainring 110BCD for R7000 R8000 R9100 Narrow Wide Single Speed This is a 110BCD 4 Arm Chainring Support 9-12 Speed Chain. Support Crankset Dura Ace R9170 R9150 R9120 R9100 Ultegra R8070 R8050 R8020 R8000 105 R7025 R7000. Made of high quality USA aluminum 7075 and precision full CNC process. With state of the art design from Stone company. Provide you with the best quality and riding experience. Features 110BCD, 4 Arm, Chain 9/10/11/12 Speed, Support Crankset R9100 R8000 105 R7000 Optimized tooth design, low noise, anti-drop. Self-cleaning from muddy soil Aluminum 7075 from USA, high rigidity - precision CNC machined, 7075 T651 aluminum from USA Aleris/Alcoa. Long-lasting construction. HB150 Superior rigidity, 4 mm thick, anodized black
LIGHTWEIGHT - Lightweight and rigid design with inner cutout, weight 77-176 g. Treatment: anodized, 4 bolts included The choice of many professional track riders in Europe, life span 30,000 km Teeth, max. diameter (mm), weight (g) 34 T, 146 mm, 46 g 36 T, 154 mm, 52 g 38 T, 162 mm, 65 g 40 T, 169 mm, 80 g 42 T, 178 mm, 86 g 44 T, 186 mm, 88 g 46 T, 194 mm, 100 g 48 T, 202 mm, 105 g 50 T, 210 mm, 114 g 52 T, 219 mm, 130 g 54 T, 226 mm, 140 g 56 T, 235 mm, 155 g 58 T, 242 mm, 159 g 60 T, 250 mm, 163 g About STONE STONE is a design company specialized in providing high quality and innovative design CNC machined chainrings to clients around the world, especially loved by European race teams. STONE offers customized rings regarding tooth quantity and style,
Add your team logo or name base to your logo. Material is the basis of everything, Aluminum 7075-T651 supplied by Aleris and Alcoa USA is the top aluminum supplier in the world, Aleris is a supplier to many aircraft manufacturers. Taiwan CNC machine provides process precision 0.03mm. We are not only a factory, but also a chainring designer with cutting-edge innovative design. We want to provide customers with stiff, lightweight, low noise, drop-stop and durable chainrings. Stone products meet the requirements of all heavy duty cycling sports, downhill, CX, gravel, traction, etc. We ensure that all chainrings have a lifespan of 30,000 km.
