New member R5.1

41# swswsw
which brand of tire used? speedmind? also, F-green and R-pink ?

DIY type..

43# swswsw
diy????????

41# swswsw
9000KV的力量,真係强勁......

4th run tonight... feeling better and better...
12th gives totally different experience on RC.... in terms of speed and control

yes... 9000kv @6.6V and @LiPo 2S also for top speed 125km/hr  
test drive one time... feeling good with sensored system..
swswsw 發表於 2009-10-13 12:45

                               
登錄/註冊後可看大圖

kv 9000 x 8.4 = 75600 rpm

75600 除 6 = 12600rpm

尾輪 44.5mm x 3.14 =139.73mm =13.973cm = 0.13973m = 0.00013973km

12600 rpm x .00013973 km = 1.760598 km / min

1.760598 x 60 = 105.63588 kph

計吾掂 ...

登錄/註冊後可看大圖

登錄/註冊後可看大圖

Left is 45mm ; Right is 41.7mm which finds to be more stable...
For practice, around 100km/hr (calculated) provides good feelings..