DJC Stone Chainring 130BCD Oval for Brompton Sram Red Shimano 5700 6700 Road Bike Folding Bike 40 42 48 50 52 55 56 58 60T Chain Wheel

DJC Stone Chainring 130BCD Oval for Brompton Sram Red Shimano 5700 6700 Road bike Folding Bike 40 42 48 50 52 55 56 58 60T Chain WheelFeaturesNarrow wide tooth, it design for 1x speed only, can not use as 2x speed, not support front shifting derailleur. The flywheel cassette support 7-12s.Fit: for most of 130BCD crank, for brompton, for Sram red, for Rotor, for Shimano 5700 6700. It only work for 1by speed. Not work for 2by speed.Chain Speed support: 8-9-10-11-12 speed(MTB chain), 8-11s(Road bike chain), if you are 12s original road bike chain for shimano, it have to replace the 12s orginal quick link to any other brand quick link, as the original one is too narrow. Not support AXS 12s flattop chain. Material: High strength Aluminum 7075-T651; high precision CNC processing; offer best stiffness and endurance.Tooth: 40T-60T; Size: 130 BCD oval; Thickness: 4MM, Color: Black/silver. Ovality: 8.3%. Package Contents: 1pcs chainring, 5pcs Installation bolts.Tooth Max diameter(mm) Weight(g) (Hollow style)40 T , 178 mm , 86 g42 T , 186 mm , 85 g44 T , 194 mm , 90 g46 T , 202 mm , 86 g48 T , 210 mm , 99 g50 T , 219 mm , 107 g52 T , 226 mm , 112 g54 T , 235 mm , 119 g56 T , 242 mm , 124 g58 T , 250 mm , 129 g60 T , 259 mm , 133 gABOUTStone Design Workshop focus to offer high quality and innovated design CNC processed chainrings to clients in worldwide, especially favored by EU and USA race teams.Stone products meet requirements for all heavy duty cycling sports, Downhill, CX, Gravel, Traction and so on. Ensure all chainrings lifespan 20,000 km. All material are Alumimum 7075-T651, CNC process precision 0.03mm.

• Narrow wide tooth, it design for 1x speed only, can not use as 2x speed, not support front shifting derailleur. The flywheel cassette support 7-12s.
• Fit: for most of 130BCD crank, for brompton, for Sram red, for Rotor, for Shimano 5700 6700. It only work for 1by speed. Not work for 2by speed.
• Chain Speed support: 8-9-10-11-12 speed(MTB chain), 8-11s(Road bike chain), if you are 12s original road bike chain for shimano, it have to replace the 12s orginal quick link to any other brand quick link, as the original one is too narrow. Not support AXS 12s flattop chain.
• Material: High strength Aluminum 7075-T651; high precision CNC processing; offer best stiffness and endurance.
• Tooth: 40T-60T; Size: 130 BCD oval; Thickness: 4MM, Color: Black/silver. Ovality: 8.3%. Package Contents: 1pcs chainring, 5pcs Installation bolts.