It is called "Wall Brakes", those brakes only touch the wall when passing a section called "Dragon Coil" or "Hurricane Coil". Due to stiff climb and tight cornering, a machine can easily out of course. To prevent this, wall brakes must only slow down the mini4wd in those sections without losing speed at normal wall height.
![ร้อยพ่อพันแม่ - WanMai [Official MV]](http://i.ytimg.com/vi/XY2pNYASEbg/mqdefault.jpg)
what's the purpose to have a very high roller set up on the left side on the rear?
same question
I think it's stabilizer, not roller.
Mostly to add braking system for lane changer.
cmiiw
It is called "Wall Brakes", those brakes only touch the wall when passing a section called "Dragon Coil" or "Hurricane Coil". Due to stiff climb and tight cornering, a machine can easily out of course. To prevent this, wall brakes must only slow down the mini4wd in those sections without losing speed at normal wall height.
@@minivictorydonkey ohhh ithanks for the info!! ^_^