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Avtor Tema: 29er  (Ogledov: 1301 krat)

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29er
« dne: 13. maj 2013, 15:29 »
Na PPP turci je nekdo imel "tventinajnarja". Na njemu in na gumah piše 29. Ko sem dejal, da je premer obroča 28" (enako kot na drekalcih in treking kolesih) je bilo precej nejevere. Torej sedaj ponavljam: Premer obroča 29er na gorcih je 622mm, oz. 28", kar je majhna zanimivost. Premer 26" je 559mm in 27,5" (650b) 584mm, kar je v "starih" oznakah 27". Pa ne preračunavati s 25,4mm na palec, colo, ker se tu skrivajo druge finte.  26" je v resnici 22", ... Glej PS za detajle. 8)

PS: http://en.wikipedia.org/wiki/Bicycle_wheel
700C road bicycle wheels / ISO 622mm
Touring, race, and cyclo-cross bicycles may have vastly different design goals for their wheels. The lightest possible weight and optimum aerodynamic performance are beneficial for road bicycles, while for cyclo-cross strength gains importance, and for touring bicycles strength becomes even more important. However this diameter of rim, identical in diameter to the "29er" rim, is by far the most common on these styles of bicycles. It rolls more easily than smaller diameter tires. Road wheels may be designed for tubular or clincher tires, commonly referred to as "700C" tires.

http://www.bikecalc.com/wheel_size_math



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