its says in the manual.......2x4mm...

Hideeho
Rtfm...:blush:
Tnx

I am looking at the Speed Passion Club Combo for stock racing http://www.amainhobbies.com/product_...ed-Timing-175R anyone running one?

Open cell foam front insert suggestions

*Most discard the included insert & use a rear insert..


* med to less traction

trim 3/16in off
contour out side & inside edges

* med traction

trim 3/16 off
no contour of the edges

*med to high traction

use whole rear insert , no trimming
or
a close cell insert

hi there

anyone tried the new v pro tires on his b4.2? there is neo tire chart, so i dont know which tire for which conditions

i am looking for turbotrax or striker from v pro. i need it outdoor. i need a tire which is like the holesot m4 from proline.

what motor is recommended? (turn wise)
i want to run mod. 8.5 or 7.5?

Good morning... I figured I'd ask my question to the B4.2 people since you're probably all B4.1 experts... I'm almost finished modding my B4.1 which started out as an RTR but is now a hybrid between FT B4.1 and B4.2. The only thing that is still from the RTR is the Gear Diff. I'd like to keep the gear diff in there but want to get rid of the Dog Bones.
So if I get the 9677 FT CVA Set B4, will I be all set w/ keeping the gear diff?

Any advice/guidance is appreciated!

the gear diff and the ball diff use the same drive shafts

Okay, sorry I have to ask this B4.2 fanatics and I love my SC10.2. RB6, more expensive, but other than parts availability and costs, what are the "KEY" advantages B4.2 has over RB6? For example - RB aluminum chassis make it very stiff? is this an issue. thank you.

Price and parts availability. The rb(6is a great car

Haven't tried the stock ESC but I do have a rev pro and I like it. Get it from speed passion directly though. It is cheaper and I usually get my stuff in 3-4 days.

I was told that the new -3 foam was degrading and coming apart very bad when it was released to team drivers. Foams were coming apart after a few runs. I was given a set to try out from a local team driver and they did the same thing on me. Actually had small pieces of foam coming out of the breather holes in the rim after three runs. I'm sure the issue is fixed by now but I've honestly never liked running JC foams in the rear. Front 2wd and 4wd work great. Rears just never seem to have the right feel to me, even with cutting.

I've been running cut AKA foams front and rear for a few weeks now. I take the inner ribs out completely so there's just a ring of foam inside the tire. Been working very well so far, and my tires wear more evenly instead of just in the middle.

Also, I've never put holes in the tires with closed cells. I hate water and dirt getting inside the wheel. What I do is punch holes in the foam with a hex driver before mounting. Six or so holes with a 2mm driver works perfect. Allows the foam to breathe and no mess.

Key advantage? There isn't one really. Fit and finish, as well as the shocks on the RB6 are superior, but definitely not $200 more superior. Awesome car, but I couldn't justify the initial cost and the upkeep.

+1 Great car, just costs a lot.

Part availibility couldn't be better, we even have someone at the track who sells them. The problem is that a new B4.2 is too expensive for me (im student) and used ones are very rare to get. even if you find a B4.1 in reasonably good condition, they're way more expensive than a B4.2 from rctech in top condition. (about 170 at rcweb.de for a B4.1 and <150 at rctech for a better B4.2)

I don't know if the rear-motor config will be a problem. The buggies are very light and there shouldn't be a runtime problem if i add a few grams to change the weight distribution. Also i trust the associated-plastic much more than lets say losi or durango.
Additionally i already designed a midmotor chassis for stickpacks in CAD, just need someone to machine the toeblocks