Gwaji: Yamaha YZ450F - keken motocross na farko "mai hankali".

Don kakar 2018 mai zuwa, Yamaha ya shirya sabon-sabon ƙirar motocross 450cc. Duba Yanzu an haɗa shi da wayoyinku, wanda zaku iya keɓance babur ɗin da kuke so. A ƙarƙashin jagorancin mujallar Avto, an gwada sabon YZ450F na musamman a Ottobia Open National Open Class ta Jan Oscar Katanec, wanda ya yi tseren Yamaha ɗaya, amma a cikin 2017, kuma ya ba da kwatancen farko na kai tsaye.

Alessio Barbanti

Sabuwar app ɗin wayoyin komai da ruwan (IOS da Android) yana ba wa mahayi damar haɗi zuwa babur ta hanyar hanyar sadarwa mara waya. Direban zai iya canza tsarin injin a waya, saka idanu kan rpm, zafin injin ... Aikace -aikacen kuma yana ba da bayanin da direba ke rubuta abin da yake so don wasu hanyoyi ko yanayi. Amma ba haka bane, sabon dakatarwa, firam da madaidaicin motar lantarki. Shugaban Silinda sabo ne kuma mafi sauƙi, an biya diyya mafi girma don ingantaccen taro mai yawa. An kuma inganta piston, radiators, waɗanda suka yi girma kuma aka sanya su ta yadda iska ke shiga cikin su kai tsaye, da kuma tsarin.

Jan Oskar Catanetz: "Babban sabon abu wanda nan da nan ya kama ido shi ne, ba shakka, wutar lantarki, wanda na rasa gaske a matsayin mai tsere na samfurori na baya, musamman lokacin da na yi kuskure a tseren kuma na rasa iko mai yawa don sake farawa. tseren. inji.

Abin da na ji mafi mahimmanci shine isar da wutar lantarki daban-daban wanda nake jin yana da kyau sosai tare da ƙirar 2018 saboda motar ba ta da ƙarfi a cikin ƙananan saurin gudu amma har yanzu tana ba da iko da yawa lokacin da kuke buƙata don haka zan kwatanta ikon mota ko isar da shi ya fi gafara idan aka kwatanta da bara, kodayake samfurin 2018 yana da karin "dawakai". Gudanar da keken ya ba ni mamaki, musamman a cikin sasanninta inda na sami kyakkyawar ma'ana da daidaitawa da sarrafa dabaran farko (kayan aikin cokali mai yatsa ya canza daga 22 millimeters zuwa 25 millimeters), da kuma cikin hanzari, yayin da motar baya ta kasance a wurin. . ya kamata. Kodayake birki iri ɗaya ne, dakatarwar ta ɗan canza kaɗan daga bara, na ji shi a cikin ma'auni na babur yayin da tsakiyar nauyi ya ɗan ƙara kaɗan zuwa bayan keken idan aka kwatanta da samfurin bara. Amma na kuma sami damar gwada keken WR450F (enduro), kuma abu na farko da na lura shine hasken keken, kodayake yana da nauyin kilo 11 fiye da takwaransa na motocross.

Wannan rashin haske ne ya ba ni kwanciyar hankali da walwala yayin shiga sasanninta, kuma dakatarwar ta yi kyakkyawan aiki a kan kututture, amma ya yi taushi sosai don tsalle a gefen layin waƙar. Kamar yadda ya dace da keken enduro, ƙarfin injin ya yi ƙasa kaɗan, don haka dole in yi tuƙi sosai a kan waƙar motocross. Na yi matukar mamakin yadda na sami damar hawa wannan keke na enduro a kan waƙa cike da bumps, tashoshi masu zurfi da tsalle tsalle. "

rubutu: Yaka Zavrshan, Jan Oscar Katanec 

hoto: Yamaha

• Bayanan Asali

• Bayanin fasaha

  injin: 4-bugun jini, mai sanyaya ruwa, DOHC, 4-bawul, 1-silinda, karkatar da baya, 449 cc

  Ƙarfi: mis.

  Karfin juyi: mis.

  Canja wurin makamashi: 5-gudun gearbox, sarkar

  Madauki: akwatin aluminum

  Brakes: diski guda ɗaya na hydraulic, diski na gaba 270 mm, diski na baya 245 mm

  Tayoyi: gaba - 80 / 100-21 51M, baya - 110 / 90-19 62M

  Height: 965 mm

  Tankin mai: 6,2

  Afafun raga: 1.485 mm /

  Nauyin: 112 kg