自製噴射引擎單車 時速41公里

木結他

個引擎睇落都唔輕得去邊
5G成本會唔會好重皮

longdongsilver

回應 BOR #13 的帖子

You still have to work a bit to go 60kph, a little down hill push wouldn't hurt.

longdongsilver

回應 t-shiper #15 的帖子

Of course, use knobbies for off-road and smooth slicks for street.

longdongsilver

回應 lawson. #16 的帖子

Gym bikes don't count, that's cheating.

longdongsilver

回應 lawson. #17 的帖子

It should run on AA jet fuel, it sells for US$6.5 an US gallon in my  neighbourhood.

longdongsilver

回應 t-shiper #20 的帖子

Not necessarily, just spin faster.

t-shiper

longdongsilver 發表於 2013-1-17 21:33
回應 t-shiper #15 的帖子

Of course, use knobbies for off-road and smooth slicks for street.

爛路我唔係指山路，而係缺乏維修的單車徑同馬路

t-shiper

longdongsilver 發表於 2013-1-17 21:39
回應 t-shiper #20 的帖子

Not necessarily, just spin faster.

如果後面行 11t 唔重腳邊到 spin 得郁

longdongsilver

回應 t-shiper #28 的帖子

You will ride much faster and hold the speed much longer if you spin at 110 rpm in 17 gear than 70 rpm in 11 gear.

大隻

好有研究精神！利害！