DJC Stone Round AERO Chainring Inner 4mm Offset 110BCD 1x for Shimano 105 R7100 UT R8100 DA R9100 R9200 5800 6800 9000 Road Bike 12s 12 11 Speed

DJC Stone Round AERO Chainring Inner 4mm Offset 110BCD 1x for Shimano 105 R7100 UT R8100 DA R9100 R9200 5800 6800 9000 Road Bike 12s 12 11 SpeedFeatures4mm inner offset, help makes perfect chainline when you move your road bike to 1x speed from 2x speed. The 4mm inner offset will make your chain and chainline centered to the rear cassette flywheel.Narrow wide tooth, it design for 1x speed only, can not use as 2x speed, not support front shifting derailleur. The flywheel cassette support 7-12 speed.Compatible with Shimano R7100/R8100/R9200 cranks (downward compatibility with R7000/R8000/R9100/FC-5800/6800/9000). Can be installed with 110 BCD four-arm power meter spiders. Compatible with STONE-manufactured 110 BCD four-arm spiders.Chain Speed support: 8-9-10-11-12 speed(MTB chain), 8-11s(Road bike chain), if you are 12 speed original road bike chain for shimano, it have to replace the 12speed orginal quick link to any other brand quick link, as the original one is too narrow. Not support AXS 12 speed flattop chain.Size: 110 BCD 4arms. Thickness: 4mm for chainring and 4mm inner spider. Totally 8mm.Package: 1 chainring+spider with bolts.Size(T), Diameter(mm), Weight (g)42T, 178 mm, 124 g44T, 186 mm, 135 g46T, 194 mm , 140 g48T, 202 mm, 149 g50T, 210 mm, 156 g52T, 219 mm, 173 g54T, 226 mm, 183 g56T, 235 mm, 194 g58T, 242 mm, 203 g60T, 250 mm, 217gSTONE Chainrings — Race-Ready PrecisionUsing aerospace-grade 7075-T651 aluminum from Alcoa and Aleris, STONE achieves exceptional stiffness and durability, with a tested lifespan of up to 15,000 km.High-precision CNC machining within 0.03 mm tolerance guarantees efficient power transfer, minimal noise, and stable shifting under pressure.

• 4mm inner offset, help makes perfect chainline when you move your road bike to 1x speed from 2x speed. The 4mm inner offset will make your chain and chainline centered to the rear cassette flywheel.
• Narrow wide tooth, it design for 1x speed only, can not use as 2x speed, not support front shifting derailleur. The flywheel cassette support 7-12 speed.
• Compatible with Shimano R7100/R8100/R9200 cranks (downward compatibility with R7000/R8000/R9100/FC-5800/6800/9000). Can be installed with 110 BCD four-arm power meter spiders. Compatible with STONE-manufactured 110 BCD four-arm spiders.
• Chain Speed support: 8-9-10-11-12 speed(MTB chain), 8-11s(Road bike chain), if you are 12 speed original road bike chain for shimano, it have to replace the 12speed orginal quick link to any other brand quick link, as the original one is too narrow. Not support AXS 12 speed flattop chain.
• Size: 110 BCD 4arms. Thickness: 4mm for chainring and 4mm inner spider. Totally 8mm. Package: 1 chainring+spider with bolts.