KTM Duke 250 | Final drive explained and comparison test

[@alejandropolo]

Thanks for sharing such an important data, saved us all a lot of money. Great video!

[@MichaelLee26]

No problem and thanks for watching... I'm glad to help

[@z4520ft]

Hi. Firstly thanks for your effort making this video. Just want to ask, did you try changing only 1 sprocket at a time after this video? Not sure if you notice, the top speed 162KMh achieved with 15-45 setup was at below 10k RPM which seems to me, you dropped the ratio too much than the engine can handle. If you still interested to conduct the experiment, I would suggest gradually change the sprocket starting from 14-45 to 15-46 as increasing 1 tooth in front is equivalent to 2 rear tooth.

[@MichaelLee26]

Yeah bro... I just conduct the test with 1 sprocket 15-45 in this video. And I appreciate your advice not to deviate too much from the stock setting... Perhaps 14-45 or 15-46 would provides better performance but I never tried yet... And thanks for watching

[@z4520ft]

Please share the result if you happen to do it in the future. I'm curious how Duke 250 will behave with some tweak to sprocket but living in apartment, it's quite a hassle to experiment by myself.

[@MichaelLee26]

Will do so if I am having some free time

[@Kuper133]

У меня передняя звезда стоит 13 зубьев, а задняя 52. А как в стоке было? Я покупал мотоцикл не новым. Может прежний хозяин так установил.

[@MichaelLee26]

Я думаю, что предыдущий владелец хотел лучшего ускорения, потому что передаточное число 52/13 составляет 4,00, что за каждый 1 оборот передней звездочки будет вращать заднее колесо 4 раза, что очень много, но пожертвует максимальной скоростью... Держу пари, что вы скоро достигнете максимальной скорости, пока двигатель будет подпрыгивать

[@Kuper133]

@@MichaelLee26 Скажите, а какие правильно звезды нужно поставить? Это мой первый мотоцикл я не понимаю. Мне нужно менять цепь и хочу поменять звезды.

[@MichaelLee26]

Я предлагаю вам установить следующие стандартные настройки, которые составляют 15 для передней части и 46 для задней

[@mekanikrumahan4574]

Hi bro...when you put 15-45, does it become more smooth in acceleration? My wife doesn’t like when riding Duke with me, she get smashed to behind because the torque.

[@MichaelLee26]

No bro... The pulling force is still very strong even though ratio has dropped but that minor difference will not cause much effect as the sprint time and top speed is still the same

[@mekanikrumahan4574]

@@MichaelLee26 thank you for the info...guess my wife will continue hating the duke😅

[@MichaelLee26]

Haha... I guess she didn't enjoy that thrill riding sport bike

[@Yzb8748]

Hi Bro...adakah tayar juga mempengaruhi kelajuan...?..Cnth...motor sy KTM 250 V2 2017..susah nk capai 130kmj....spoket14-44.....tayar blkg saiz 160

[@MichaelLee26]

Mestilah boss... Sebab ketinggian tayar blh mengurangkan top speed... Saiz tayar 160/60 ialah saiz lebar 160mm dn profile 60 maksudnya dinding tayar ialah 60% dari lebar tayar iaitu 96mm... Jumlah keseluruhan tayar akan menjadi 96mm x 2 tambah rim 17" yang sgt tinggi... Jika original size 150/60 ialah 150mm dn 60% iaitu dinding 90mm sj... Jumlah keseluruhan 90mm x 2 tambah rim 17" pun rendah... Jadi enjin pun akan rasa ringan untuk memusing tayar yg kecil... Top speed pun tinggi

[@KTMRTR]

50kmh-150kmh which one is faster 14-46 or 15-45

[@MichaelLee26]

For better sprint then you can choose 14-46... It provides more torque for acceleration

[@KTMRTR]

@@MichaelLee26 thx man

[@MichaelLee26]

You are welcome bro

[@unknownboy3491]

Top speed bro

[@MichaelLee26]

The top speed is 162km/h with 15-45 final gear ratio... no difference with the stock 14-46 which can reach the top of 161km/h

[@unknownboy3491]

@@MichaelLee26 bro full support can u put one vdo of set up what modification have u put in duke. Same we can put in rc bro. Bro 1 more que: we pull rc or duke to top end it struggles lot i think we modify over heating ro piston complaint like any issues comes bro plz rlp bro

[@MichaelLee26]

@@unknownboy3491 Hi! Currently my bike is still fully stock... No any modification except for tyre and final drive... Your bike struggle means very hard to reach top speed? Yours is V1 or V2?

[@manumanu3334]

Bro i have 250 duke,can you tell top speed front and rear sprocket size please

[@MichaelLee26]

Stock setting is front 14 rear 46 achieving top speed 161km/h while settings tweaked by myself is front 15 rear 45 achieving 162km/h

[@manumanu3334]

@@MichaelLee26 bro i am alredy using 14 and 46 but top 145km/h (model 2018 ktm 250)

[@MichaelLee26]

Your Duke 250 is V1 or V2?

[@manumanu3334]

@@MichaelLee26 how to find v1 or v2

[@manumanu3334]

@@MichaelLee26 is this ecu program?

[@karanbundhela3336]

can u give link to purchase 15t sprocket for ktm rc 200?

[@MichaelLee26]

Hi bro. I bought mine at a local accessories shop at my place here... the cost is approximately US$12... they don't do online business

[@karanbundhela3336]

@@MichaelLee26 great bro ,i have 15t sprocket but its too big for my rc

[@MichaelLee26]

Yup. I do agree 15T is too big... 14T for front should be enough... should only do adjustment on the rear sprocket...

[@TELUCKPUN2049]

bro sprocket doesnt help for top speed .... its already been fixed top speed in the ECU..... for the top speed we need to remap the ECU or change the stock ECU with other ECU ( powertronic) check the video about powertronic ecu

[@MichaelLee26]

Is it means Duke have speed limiter? OMG! 😲

[@rimaaspriany8378]

Bro kt Penang ka

[@MichaelLee26]

Ya bro... Kat Perai