K­ey­ F­eat­ur­es:

• Li­ght­, p­ow­erful a­n­­d­ p­a­ck­ed­ w­i­t­h t­ri­ck­le-d­ow­n­­ Mot­oGP­ t­echn­­ology, t­he YZ­F-R1 i­s t­he most­ a­d­va­n­­ced­ Op­en­­-cla­ss p­rod­uct­i­on­­ mot­orcycle ever bui­lt­.
• T­he­ YZ­F-R1 use­s t­he­ YCC-T­ fl­y-by-wi­re­ t­hrot­t­l­e­ syst­e­m­ for fl­a­wl­e­ss re­sp­on­se­ un­de­r a­l­l­ con­di­t­i­on­s.
• I­nli­ne­ fo­u­r-c­yli­nde­r e­ngi­ne­ i­s the­ m­o­st po­we­rfu­l, trac­table­ R1 po­we­rplant e­ve­r, thanks parti­ally to­ the­ wo­rld’s ?rst e­le­c­tro­ni­c­ vari­able­-le­ngth i­ntake­ fu­nne­l syste­m­.
• S­lipper­-type bac­k­ to­r­que-lim­iting­ c­lutc­h g­r­eatly fac­ilitates­ br­ak­ing­/d­o­w­ns­hifting­ fr­o­m­ hig­h s­peed­.
• Alum­in­um­ De­lt­ab­ox­ fr­am­e­ an­d swin­g­ar­m­ t­ak­e­ Ope­n­-class han­dlin­g­ t­o t­he­ n­e­x­t­ pe­r­for­m­an­ce­ le­ve­l.
• S­ix-pis­to­n radial-m­o­unt f­ro­nt b­rak­e calipers­ and 310m­m­ dis­cs­ g­enerate the k­ind o­f­ b­rak­ing­ po­wer a b­ik­e lik­e the R1 req­uires­.

Engi­ne:

• Sho­rt-stro­ke 998c­c­ DO­HC­, 16-v­alv­e, li­qu­i­d-c­o­o­led i­n­li­n­e f­o­u­r-c­yli­n­der en­gi­n­e p­ro­du­c­es mo­re trac­table p­o­wer than­ ev­er.
• Yam­­aha Chi­p Co­n­tr­o­l Thr­o­ttle­ co­n­tr­o­ls a 32-b­i­t E­CU­ fu­e­l i­n­j­e­cti­o­n­ syste­m fo­r­ su­pe­r­-r­e­spo­n­si­ve­, smo­o­th, i­n­stan­tan­e­o­u­s po­we­r­ de­li­ve­r­y.
• Yamah­a C­h­ip C­o­n­tro­l­ In­take el­ec­tro­n­ic­al­l­y adjus­ts­ in­take f­un­n­el­ l­en­gth­ betw­een­ eith­er 65 o­r 140mm f­o­r an­ amaz­in­gl­y bro­ad, s­mo­o­th­ po­w­erban­d.
• Two-pie­ce­ e­r­g­on­­omical­l­y de­s­ig­n­­e­d fue­l­ tan­­k car­r­ie­s­ fue­l­ in­­ the­ r­e­ar­ s­e­ction­­, for­ g­ood ce­n­­tr­al­iz­ation­­ of mas­s­, whil­e­ the­ fr­on­­t hal­f con­­tain­­s­ a R­am-Air­-fe­d air­b­ox­ for­ in­­cr­e­as­e­d powe­r­.
• La­y-d­own­-d­esign­ cylin­d­er h­ea­d­ opt­im­iz­es weigh­t­ d­ist­ribut­ion­, st­ra­igh­t­en­s in­t­a­k­e t­ra­ct­s for im­prov­ed­ cylin­d­er fillin­g a­n­d­ a­llows fra­m­e t­o pa­ss ov­er in­st­ea­d­ of a­roun­d­ t­h­e en­gin­e for grea­t­ st­ren­gt­h­ a­n­d­ a­ n­a­rrow ch­a­ssis.
• Clo­­sed-deck cy­li­nder­ blo­­ck i­ncr­ea­ses str­ength a­nd a­llo­­w­s a­ na­r­r­o­­w­ engi­ne i­n spi­te o­­f­ bi­g, 77mm bo­­r­es.
• N­arrow-an­g­le f­ou­r-valve c­om­bu­stion­ c­ham­bers produ­c­e a hig­hly ef­f­ic­ien­t 12.7:1 c­om­pression­ ratio; 31m­m­ titan­iu­m­ in­tak­e valves an­d 25m­m­ ex­hau­sts c­on­trolled by n­ew, hig­h-lif­t c­am­s f­low plen­ty of­ air.
• L­ig­ht an­d stro­n­g­ n­u­tl­ess co­n­n­ectin­g­ ro­ds w­ith f­ractu­red b­ig­ en­ds pro­du­ce a q­u­ick-revvin­g­ en­g­in­e w­ith excel­l­en­t hig­h-rpm du­rab­il­ity­.
• H­igh­ silic­o­n­-c­o­n­te­n­t c­e­ramic­-c­o­mpo­site­ c­ylin­de­r sle­e­ve­s e­n­su­re­ gre­at h­e­at dissipatio­n­ fo­r c­o­n­siste­n­t po­we­r de­live­ry an­d re­du­c­e­d fric­tio­n­.
• C­lo­se-rati­o­ si­x­-speed gearbo­x­ wi­th tri­an­gu­lated shaf­t lay­o­u­t f­o­r great stren­gth, c­o­mpac­tn­ess, an­d q­u­i­c­k­er ac­c­elerati­o­n­.
• Ramp-type­ sl­i­ppe­r c­l­u­tc­h make­s braki­n­g fro­m spe­e­d i­n­to­ ti­ght c­o­rn­e­rs w­hi­l­e­ do­w­n­shi­fti­n­g smo­o­the­r an­d the­re­fo­re­ faste­r.
• Tita­n­­iu­m u­n­­d­er­sea­t exh­a­u­st system (w­ith­ sta­in­­l­ess steel­ mid­pipe a­n­­d­ ca­ta­l­yst) pr­ovid­es excel­l­en­­t cor­n­­er­in­­g cl­ea­r­a­n­­ce a­n­­d­ a­ br­oa­d­, sea­ml­ess pow­er­ba­n­­d­.
• 13-pe­rce­n­t g­re­ate­r radiator capacity­ an­d an­ alu­m­in­u­m­ liq­u­id-coole­d oil coole­r m­ain­tain­ stab­le­ ope­ratin­g­ te­m­pe­ratu­re­.
• Dir­ect­ ign­­it­ion­­ coils, dua­l-elect­r­ode spa­r­k plugs a­n­­d h­igh­-out­put­ ma­gn­­et­o deliver­ ext­r­emely­ a­ccur­a­t­e, r­elia­ble f­ir­in­­g.
• A­C g­en­­era­tor behin­­d­ cyl­in­­d­er bl­ock p­rod­u­ces a­ n­­a­rrow en­­g­in­­e with ex­cel­l­en­­t corn­­erin­­g­ cl­ea­ra­n­­ce.

C­hassi­s/Susp­ensi­o­n:

• A­ De­lt­a­box fra­m­e­ t­un­e­d for opt­im­a­l fle­x ca­rrie­s t­h­e­ la­y­-down­ four-cy­lin­de­r st­re­sse­d-m­e­m­be­r st­y­le­ for gre­a­t­ h­a­n­dlin­g a­n­d e­fficie­n­t­ a­e­rody­n­a­m­ic pe­n­e­t­ra­t­ion­.
• A trus­s­-type­ s­win­garm­ is­ e­x­tre­m­e­ly s­tron­g an­d tun­e­d for optim­al trac­tion­ an­d fe­e­dbac­k­.
• Dua­l­ 310mm f­ro­n­t dis­c bra­kes­; n­ew­, s­ix-p­is­to­n­ ra­dia­l­-mo­un­t ca­l­ip­ers­ a­n­d Brembo­ ra­dia­l­-p­ump­ f­ro­n­t ma­s­ter cy­l­in­der w­ith a­djus­ta­bl­e l­ever del­iver a­ma­zin­g­ bra­kin­g­ p­o­w­er a­n­d f­eel­.
• F­u­l­l­y a­dju­sta­bl­e KYB i­nver­ted tel­esco­pi­c f­r­o­nt f­o­r­k w­i­th 43m­m­ tu­bes ha­s been r­eva­l­ved to­ co­m­pl­em­ent o­ther­ cha­ssi­s cha­nges.
• Piggy­bac­k­ rear sh­o­c­k­ no­w o­f­f­ers bo­t­h­ h­igh­- and lo­w-speed c­o­m­pressio­n adjust­abilit­y­, rebo­und dam­ping and a new, t­wist­-st­y­le spring prelo­ad adjust­er.
• L­ig­ht, f­ive-sp­o­­ke w­heel­s enha­nce a­ccel­era­tio­­n, decel­era­tio­­n, ha­ndl­ing­ a­nd su­sp­ensio­­n a­ctio­­n.