Litepro Hollowtech Crankset Litepro Elite Hollowtech Crankset, Sports Square Taper Interface: Features a reliable square hole spindle interface with 170mm arm length, providing stable crankset installation and consistent power delivery for various cycling applications Folding Bike Crankset Litepro Ultralight Hollow Crankset Chainring Durability And Compatibility In One I.64743749 CNC Aluminum Chainring 50T *suit for most bikes,folding bikes,road bikes,ebikes,Fully CNC machined narrow-wide chainring for single ring Specification: *Crank Description: Material: AL6061 aluminum alloy Armlength: 170mm for BCD: 130mm Spindle Interface: Square Hole Weight: about 525g *Chainring description: Material: CNC AL7075 aluminum alloy Narrow and wide teeth chainring / single speed Color: Black for BCD: 130mm Teeth: 50T 52T 54T 56T 58T Weight: 85/88/92/98/103g Diameter: 208/216/224/231/242mm Compatible chain speed: 9/10/11 speed Package included: list1:1x crank list2:1x crank ,1x chainring,1set chainring screw Litepro Folding Bicycle Elite Hollow Integrated Crank Crankset 130BCD... Litepro Round Chainring Crankset 130 BCD Hollow 46/48/50/52/54T/56T/58T... Multiple Size Options: Available in 50T, 52T, 54T, 56T and 58T tooth configurations with 130mm For BCD compatibility, offering versatile gearing options for road bikes, folding bicycles and e-bikes Ultralight Hollow Design: Experience significant weight reduction with our For CNC machined AL6061 aluminum crankset, weighing approximately 525g for enhanced cycling efficiency and responsive power transfer during rides