Normal
nell'altro link c'è poi un pdf da scaricare che isola meglio i fattori angolo e numero di dentcomunque si il grafico mostra le perdite della trasmissione( a 250w e 95rpm)aggiungo riportando dall'articolo"Previous FrictionFacts testing shows that narrow-wide teeth create no more friction when cross-chaining than do standard, uniform-thickness (i.e., 2X or 3X) chainring teeth, since every tooth on a narrow/wide-tooth chainring pulls the chain over the same amount; it moves narrow and wide chain links laterally the same distance. With a standard chainring working at the same cross-chain angle, the teeth don’t pull over the wide chain links, but every other tooth pulls the narrow chain links over twice as far as each tooth on an NW pulls a chain. It’s a wash, friction-wise."
nell'altro link c'è poi un pdf da scaricare che isola meglio i fattori angolo e numero di dent
comunque si il grafico mostra le perdite della trasmissione( a 250w e 95rpm)
aggiungo riportando dall'articolo
"Previous FrictionFacts testing shows that narrow-wide teeth create no more friction when cross-chaining than do standard, uniform-thickness (i.e., 2X or 3X) chainring teeth, since every tooth on a narrow/wide-tooth chainring pulls the chain over the same amount; it moves narrow and wide chain links laterally the same distance. With a standard chainring working at the same cross-chain angle, the teeth don’t pull over the wide chain links, but every other tooth pulls the narrow chain links over twice as far as each tooth on an NW pulls a chain. It’s a wash, friction-wise."
