This kit is crafted from strength aluminum alloy and stainless steel, delivering a lightweight solution that reduces overall bike weight and improves cycling efficiency. It transforms a multispeed bike into a safe singlespeed machine, with a design that enhances climbing power. Suitable for mountain road adventures, city commuting, casual riding, and bicycle modification, ensuring reliable performance across varied riding conditions. The conversion kit features a userfriendly design that allows quick installation without professional tools, making it a reliable choice for riders seeking dependable cycling equipment. Use scenarios Mountain road climbs: simplifies gearing to support steady power on steep ascents. Urban commuting: lowmaintenance singlespeed setup suited for daily city rides. Casual rides and bicycle modification: convenient for upgrading older bikes or experimenting with a singlespeed configuration.