IMO its a bit too tall for hills. but great for speeding on flat ground. if you live in a mostly hilly area, id suggest a taller rear cog. if you live in a mostly flat area, with some small hills, like my area, its perfect. and im not even in that good of shape. tall enough for flat areas, yet i can skid with ease
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btw, thanks for the compliment on the pictures. :e-beer: