because i have Kent 700c Nazz Men's Gravel Road Bike from walmart and i wanna change the shifter to sti shifter. i also dont know what kind of shifter do i have but you can look the bike on walmart website
Going the STI route would be a great upgrade. It on the flip side it's the most expensive type of shifter Because it incorporates the shifter and braking components and is the most is the most recent by technology. I would estimate Is somewhere in the $200 area
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