Childrens Mountain Bike Crankset, 110/127/140/150/155/160MM Bike Crank Arms for Folding Bike, Hollow Integrated Crankset with 28/30/32/34/36T Chainring Narrow Wide Teeth 7-12S with BB

Mountain Bike Single Speed Crankset 110/127/140/150/155/160MM Cranksets Hollow Integrated Crank Arms 28/30/32/34/36T Round Narrow Wide Tooth Chainring for Children's Bike Folding Bike with Bottom Bracket 7-12 Speed Aluminum Alloy Specification:Crank length: 110/127/140/150/155/160mmColor: BlackMaterial: Aluminium alloy 6061Chainring: 28T 30T 32T 34T 36T single speed round narrow wide teeth chainringWith 68mm-73mm(2.67-2.87in) wide frame bottom bracketCrank Arms: Weight about 550gChainring: Weight about 80gBottom Bracket: Weight about 95gInstallation: Three screws InstallationShaft diameter: 24mmOffset: 3 degreesShaft material: chrome molybdenum steelCrank screw specification: m15Surface treatment: anodisedPedal: m14Speed support: 7-12 SpeedPackaging includes:2xCrank Arms(left crank arm +right crank arm)1xChainring1xBottom BracketNote:Before purchasing this product, please make sure that the size of this product is consistent with the size you need.Size for manual measurement, 1-3MM error is normal, please prevail in the actual situation, thank you for your understanding.Services:If you have any questions feel free to contact us, will provide you with the best service within 24 hours!

• Childrens Bike Crankset: 6 sizes 110MM/127MM/140MM/150MM/155MM/160MM. crank set Suitable for children's bike folding bike and mountain Bike, with 68mm-73mm(2.67-2.87in) wide frame bottom bracket.
• Chainring: 28T 30T 32T 34T 36T single speed round narrow wide teeth chainring, wide and narrow teeth alternately design is effective to prevent the chain from falling off.
• Hollow Integrated Bike Crankset: Aluminum Alloy Material, crank weight about 550g, Chainring about 80g, Light weight, High strength and durable, high hardness, not easy to deform.
• Cranksets: Compatible 7Speed-12Speed; Three screws Installation; Shaft diameter: 24mm; Offset: 3 degrees; Crank screw specification: m15; Pedal: m14.
• Package list and Easy to install: 2xCrank Arms(left crank arm+right crank arm); 1xChainring; 1xBottom Bracket. This crank arm is divided into left and right side, please pay attention to the left and right side when installing, very quick. If you have any questions before and after the sale, feel free to contact us, will provide you with the best service within 24 hours!