SURIEEN 42T Mountain Bike 170mm Square Crankset, Single Speed 104 BCD Crank Arm Set for bike, Road Folding MTB, BMX

【Premium Build 】 Constructed from high-strength aluminium alloy for exceptional durability. This square taper crankset undergoes a sandblasted and anodised finish, effectively resisting wear from daily use and extending its service life. 【Universal Compatibility】 Designed for single-speed setups, this 104BCD mountain bike crankset fits most 8/9/10/11-speed mountain bikes, road bikes, and folding bikes. Ideal for riders seeking a reliable upgrade or replacement. Not compatible with multi-speed drivetrains. 【Optimised for Performance】 Square taper crankset is featuring a 42T narrow-wide chainring design, this crankset enhances chain retention and reduces the risk of chain drop. The 170mm crank arms provide efficient power transfer and a comfortable riding experience. 【Lightweight Design】 Lightweight design adds no extra weight to your ride, ensuring a more comfortable and relaxed cycling experience. Narrow yet wide teeth provide superior chain retention. 【Complete Set 】 Included 1x 170mm left crankset, 1 x 170mm right crankset and 1x chainring, 4 x bolts. The crankshaft and chainrings are single-speed only and cannot be used with other gear systems.