I am just confused becouse of my new setup of rims and tyres, and I worry about best combination for my daily usage...I have 21 tooth on back, and i do not know how many tooth must take for front...I follow your link second one, and there is no such a lot combination with 21T on back cog...
I am just confused becouse of my new setup of rims and tyres, and I worry about best combination for my daily usage...I have 21 tooth on back, and i do not know how many tooth must take for front...I follow your link second one, and there is no such a lot combination with 21T on back cog...