I used two, first they run paralell along the top tube >headtube>down tube and splits at the chainstay>seatstay and joins back at the top of the seat tube and ends up at the BB.. One would be more than enough if you leave out the chain-seat stays though..
I used two, first they run paralell along the top tube >headtube>down tube and splits at the chainstay>seatstay and joins back at the top of the seat tube and ends up at the BB.. One would be more than enough if you leave out the chain-seat stays though..