Wabi Classic is 18 lbs ish on a stock 55, has two brakes, and yes responsive. Wabi offers various options for stem length, brake levers, chainring size, cog size, saddle and some others I can't remember. He also has a
fender on his site but, I have no experience on those. I bought the stock Wabi Classic and liked it. Never had a problem with the stock components, although I did replace those just cause and put some of it on my brothers bike.