QUOTE(spx @ Apr 11 2007, 12:22 AM)
Interesting Tamiya mini 4wd forum!
There are a few basic questions that I need some gurus' advice:
1) When my car fly from a slop, why does the back of my car goes side way causing the rollers at the rear skid hit on the track's divider? The width of my front rollers and back has the difference of just 4mm with the front being wider slightly.
2) How to solve the problem of the car bouncing during landing? I have problem with my car landing (if successfully without the #1 problem above) and would bounce itself out of the track again (landing just at the middle of a straight track after over a slope and heading for a u turn immediately) as it would still be bouncing while entering the start of the 180 cornering

Appreciate if anyone here could help me out with my problem.
Added on April 11, 2007, 12:30 amBtw, just out of curiosity, what's the 620 and 830 bearings for?
Does it serve as ball bearings and if it is, where would it go to (gear/wheel shaft)?
Or it is being used as rollers?
Hi SPX,
Maybe u like to feature your car in this forum....and then we can advise u the setting will be.
As for the front and back width should be about the same..... for your case your
front width is wider than your back.... this cause your car rear section rollers keeping hitting the side of the track.
Solution : either you increase the size of the roller's or adjust the rear roller's wider.
What's kind of roller's u are using ...??
As for the bouncing problems...there quite a few areas that cause this problems.
**It's better that I can view your car before giving comments to u.
As for 620 & 830 bearings, usually it's use as a roller's in the car setting and better
cornering & bends. At times, this use for technical car setting for technical track.
By the way, which country are you from ..??